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teg
ie
s
b
ased
o
n
p
r
ess
u
r
e
d
if
f
er
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n
tial
s
,
esp
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ce
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alize
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air
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in
b
u
ild
i
n
g
s
,
h
a
s
b
ee
n
an
al
y
ze
d
in
[
1
6
]
,
[
1
7
]
.
C
o
n
tr
o
l
s
y
s
te
m
b
ased
o
n
f
u
zz
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th
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p
ar
a
m
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tem
,
k
ee
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p
o
p
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ati
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in
t
h
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r
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g
io
n
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f
m
ax
i
m
u
m
e
f
f
icie
n
c
y
w
as
p
r
o
p
o
s
ed
in
[
1
8
]
.
Fu
r
th
er
s
t
u
d
ies
ar
e
ai
m
ed
to
t
h
e
d
es
ig
n
o
f
s
o
p
h
is
ticated
co
n
tr
o
l
s
tr
ateg
ie
s
[
1
9
]
-
[
2
1
]
.
A
l
s
o
,
s
o
m
e
r
esear
ch
h
as
b
ee
n
d
ir
ec
ted
to
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ev
elo
p
m
e
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s
i
m
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latio
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o
p
ti
m
izatio
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d
el
s
an
d
to
o
ls
,
w
id
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y
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s
ed
f
o
r
th
e
an
al
y
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is
o
f
p
u
m
p
in
g
s
y
s
te
m
s
w
it
h
p
r
i
m
ar
y
m
o
to
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s
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p
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atin
g
at
d
if
f
er
e
n
t sp
ee
d
s
.
Fo
r
in
s
ta
n
ce
,
i
n
[
2
2
]
,
a
m
o
d
el
o
f
a
ce
n
tr
if
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g
al
p
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m
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m
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Ma
tlab
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Si
m
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io
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i
m
p
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tan
t
v
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les,
s
u
ch
as
:
m
o
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n
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to
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a
n
g
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lar
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eli
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p
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lati
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b
est r
eg
u
latio
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an
d
co
n
tr
o
l stra
teg
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[
2
3
]
.
On
e
o
f
t
h
e
s
tr
ateg
ies
th
at
m
o
s
t
s
tan
d
s
o
u
t
i
n
t
h
e
s
cien
tific
liter
atu
r
e
an
d
is
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b
j
ec
t
o
f
s
t
u
d
y
in
th
is
w
o
r
k
,
ar
e
th
e
f
lo
w
co
n
tr
o
l
s
tr
ateg
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w
it
h
co
n
s
ta
n
t
p
r
es
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u
r
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.
Am
o
n
g
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v
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n
ta
g
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t
h
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s
tr
ate
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ib
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i
n
cr
ea
s
in
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t
h
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ec
o
n
o
m
ic
b
en
ef
it
s
[
2
4
]
.
I
n
th
e
C
u
b
an
s
u
g
ar
in
d
u
s
tr
y
,
t
h
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latio
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a
n
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p
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m
p
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m
s
o
f
d
if
f
er
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t
f
l
u
id
s
w
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in
th
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p
r
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s
s
.
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x
a
m
p
le
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t
h
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v
a
lu
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t
h
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elec
tr
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s
y
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m
s
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f
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ased
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th
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s
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v
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p
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d
r
iv
e.
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h
e
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a
t
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h
t
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in
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tallat
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p
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iv
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p
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p
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atel
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2
5
%
[
2
4
]
,
[
2
5
]
.
Oth
er
ex
p
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ar
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ep
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ted
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to
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lt
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h
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p
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in
t o
f
v
ie
w
o
f
en
er
g
y
s
a
v
in
g
[
2
6
]
.
Sp
ec
if
icall
y
,
f
o
r
th
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co
n
tr
o
l
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th
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w
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tech
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$
4
8
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1
7
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y
e
ar
[
2
7
]
.
T
h
is
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t
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t b
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p
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w
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atter
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t
h
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.
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h
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s
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p
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to
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b
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s
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lev
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s
d
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m
es.
I
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m
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s
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p
ass
a
g
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o
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ater
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co
r
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in
g
to
th
e
n
ee
d
f
o
r
s
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m
g
e
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er
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n
.
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h
is
s
y
s
te
m
ca
n
b
e
r
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lace
d
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y
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ar
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s
p
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d
d
r
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w
h
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h
w
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ld
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u
ce
th
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g
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co
n
s
u
m
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3
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d
5
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in
cr
ea
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ce
s
s
co
n
tr
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l
an
d
s
y
s
te
m
r
eliab
ilit
y
[
2
8
]
,
[
2
9
]
.
I
n
ad
d
itio
n
,
th
e
p
er
io
d
b
et
w
ee
n
m
ai
n
te
n
a
n
ce
o
f
t
h
e
m
ec
h
an
ica
l
s
y
s
te
m
is
i
n
cr
ea
s
ed
as
a
r
esu
lt
o
f
th
e
s
m
o
o
th
n
e
s
s
i
n
th
e
c
h
a
n
g
e
s
o
f
th
e
lo
ad
s
at
s
tar
t
-
u
p
a
n
d
d
u
r
in
g
t
h
e
c
h
an
g
e
o
f
s
p
ee
d
.
I
n
[
3
0
]
a
co
m
p
ar
ati
v
e
an
al
y
s
is
o
f
lif
e
c
y
cle
an
d
en
v
ir
o
n
m
e
n
tal
i
m
p
ac
t
co
s
ts
is
m
ad
e
w
h
e
n
u
s
in
g
v
ar
iab
le
s
p
ee
d
d
r
iv
es
u
s
i
n
g
ec
o
-
d
esig
n
m
et
h
o
d
s
ev
id
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ci
n
g
e
n
v
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o
n
m
en
tal
an
d
en
er
g
y
b
e
n
ef
i
ts
.
T
h
e
o
b
j
ec
tiv
e
o
f
th
i
s
w
o
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k
is
to
in
v
es
tig
ate
t
h
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f
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s
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t
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s
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s
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n
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m
s
to
f
ee
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th
e
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o
iler
s
i
n
th
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s
u
g
ar
in
d
u
s
tr
y
ad
o
p
tin
g
a
s
tr
ate
g
y
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f
f
lo
w
co
n
tr
o
l
w
i
th
co
n
s
ta
n
t
p
r
ess
u
r
e.
As
an
o
b
j
ec
t
o
f
s
tu
d
y
,
a
C
u
b
an
s
u
g
ar
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n
d
u
s
tr
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is
u
s
ed
.
T
h
is
ty
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tan
ce
f
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p
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en
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tio
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g
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a
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e
m
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t s
y
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m
s
,
s
av
e
e
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er
g
y
an
d
r
ed
u
ce
C
O2
e
m
is
s
io
n
s
[
3
1
]
-
[
3
3
]
.
2.
RE
S
E
ARCH
M
E
T
H
O
D
2
.
1
.
P
r
o
ble
m
s
t
a
t
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m
ent
I
n
th
e
s
u
g
ar
m
il
ls
,
th
e
co
n
tr
o
l
o
f
f
lo
w
w
a
ter
is
d
if
f
ic
u
lt
b
ec
a
u
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th
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p
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m
p
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m
is
c
h
ar
ac
ter
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b
y
h
a
v
in
g
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p
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m
p
t
h
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p
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v
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s
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s
co
n
n
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n
p
ar
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wo
r
k
in
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in
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f
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en
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eg
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,
w
ith
d
i
f
f
er
e
n
t
lo
o
p
s
o
f
w
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v
el
co
n
tr
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l
in
th
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d
o
m
e
s
o
f
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ch
g
e
n
er
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r
.
I
n
th
i
s
t
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p
e
o
f
s
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s
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m
,
t
h
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co
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tr
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o
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v
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f
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m
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p
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p
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t
w
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t
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lo
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n
s
co
n
s
tan
t in
a
n
y
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p
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g
r
eg
i
m
e.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
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N
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2
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8
8
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I
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&
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9
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2
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s
o
f
w
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k
n
e
g
ativ
el
y
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f
f
ec
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th
e
p
r
o
f
itab
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y
o
f
in
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s
t
m
en
t
s
f
o
cu
s
ed
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en
er
g
y
s
a
v
i
n
g
s
.
b.
I
t
is
an
in
d
u
s
tr
y
w
it
h
co
g
en
e
r
atio
n
,
to
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ctr
i
f
ied
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d
s
y
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ch
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ized
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th
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Natio
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al
E
lectr
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P
o
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e
r
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y
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te
m
(
SEN)
,
w
ith
t
h
e
p
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s
s
i
b
ilit
y
o
f
s
elli
n
g
th
e
ex
ce
s
s
en
er
g
y
to
th
e
g
r
id
at
a
d
if
f
er
en
ti
ated
tar
if
f
w
it
h
ti
m
e
d
is
cr
i
m
i
n
atio
n
.
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h
is
all
o
w
s
to
v
al
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e
th
e
e
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er
g
y
s
a
v
in
g
s
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ased
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th
e
s
ale
p
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o
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er
g
y
g
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ated
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n
th
e
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n
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s
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y
,
co
n
s
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g
t
h
at
t
h
e
en
er
g
y
s
av
ed
ca
n
b
e
ex
p
o
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ted
to
th
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n
etw
o
r
k
p
r
o
d
u
cin
g
ad
d
itio
n
al
in
co
m
e.
c.
T
h
e
w
ater
s
y
s
te
m
to
f
ee
d
b
o
iler
s
is
r
e
g
u
la
ted
in
ea
c
h
s
te
a
m
g
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ato
r
in
d
ep
en
d
e
n
tl
y
,
p
r
ev
en
ti
n
g
th
e
r
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u
lat
io
n
o
f
t
h
e
to
tal
f
lo
w
i
n
t
h
e
p
u
m
p
.
W
ith
th
e
s
e
co
n
s
id
er
atio
n
s
t
h
e
f
o
llo
w
in
g
m
et
h
o
d
o
lo
g
y
ap
p
lied
to
a
r
ea
l c
ase
o
f
s
tu
d
y
w
as
f
o
llo
w
ed
:
a.
Ob
tain
th
e
c
h
ar
ac
ter
is
tic
d
ata
o
f
th
e
h
y
d
r
au
l
ic
s
y
s
te
m
an
d
t
h
e
p
u
m
p
s
.
b.
Select
th
e
w
o
r
k
in
g
s
p
ee
d
r
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g
e
o
f
th
e
p
u
m
p
to
m
ee
t t
h
e
f
lo
w
d
e
m
a
n
d
s
.
c.
Sele
ct
th
e
ap
p
r
o
p
r
iate
v
ar
iab
le
s
p
ee
d
d
r
iv
e.
d.
E
s
ti
m
a
te
th
e
a
n
n
u
al
e
n
er
g
y
s
a
v
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th
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g
h
th
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u
s
e
o
f
th
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s
t
ec
h
n
o
lo
g
y
.
e.
C
ar
r
y
o
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t t
h
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ec
o
n
o
m
ic
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ea
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ib
ilit
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n
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i
s
f
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ib
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ce
n
ar
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s
.
2
.
2
.
Ca
s
e
s
t
ud
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ini
t
ia
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o
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it
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T
h
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f
ee
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w
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o
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m
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tak
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a
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p
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el
C
1
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5
/
7
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0
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1
,
co
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o
m
e.
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b
o
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f
ee
d
w
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ter
s
y
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m
m
u
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e
w
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el
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t
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d
o
m
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a
s
a
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u
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y
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m
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I
n
th
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s
y
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m
,
t
h
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ca
p
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m
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d
e
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d
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lled
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u
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ex
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s
s
lo
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d
ev
elo
p
ed
b
y
th
e
p
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p
s
[
34
]
.
Fro
m
th
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p
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ly
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d
escr
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ed
in
[
3
5
]
,
t
h
e
eq
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f
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r
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Evaluation Warning : The document was created with Spire.PDF for Python.
I
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s
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1000
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m
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=
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h
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icien
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th
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p
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break
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at
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at
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ated
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oto
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=
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1
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%.
As
ca
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n
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t
h
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m
o
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w
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k
s
in
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g
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co
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it
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s
o
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m
w
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f
f
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s
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ig
h
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s
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it
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o
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a
h
ar
v
e
s
t i
n
a
y
ea
r
is
d
eter
m
i
n
ed
as:
E
P
br
e
a
ke
m
o
t
or
t
(
3
)
w
h
er
e
E
is
en
er
g
y
co
n
s
u
m
p
tio
n
in
(
k
W
h
)
an
d
t is t
h
e
o
p
er
atin
g
ti
m
e
o
f
th
e
p
u
m
p
,
in
h
.
Fo
r
a
h
ar
v
es
t
o
f
ap
p
r
o
x
i
m
atel
y
1
3
0
ef
f
ec
tiv
e
d
a
y
s
,
t
h
e
o
p
er
atin
g
ti
m
e
i
s
3
1
2
0
h
,
s
o
ac
co
r
d
in
g
to
(
3
)
,
th
e
esti
m
ated
e
n
er
g
y
co
n
s
u
m
p
tio
n
is
5
2
4
4
7
9
.
9
3
k
W
h
/ h
ar
v
est.
3.
RE
SU
L
T
S
A
ND
AN
AL
Y
SI
S
3.
1
.
S
o
lutio
n pro
po
s
a
l f
o
r
t
h
e
re
g
ula
t
io
n o
f
f
lo
w
a
t
c
o
ns
t
a
nt
lo
a
d us
ing
v
a
ria
ble sp
ee
d driv
e
A
cc
o
r
d
in
g
to
[
3
6
]
,
f
ee
d
w
ater
p
u
m
p
s
m
u
s
t
b
e
ca
p
ab
le
o
f
w
o
r
k
in
g
at
a
p
r
ess
u
r
e
g
r
ea
ter
th
a
n
2
5
%
o
f
th
e
ce
r
tif
ie
d
b
o
iler
p
r
ess
u
r
e.
Un
d
er
cu
r
r
en
t
o
p
er
atin
g
co
n
d
itio
n
s
,
ac
co
r
d
in
g
to
th
e
h
i
s
to
r
ical
in
f
o
r
m
atio
n
r
ec
o
r
d
e
d
in
th
e
SC
AD
A
m
ea
s
u
r
e
m
e
n
t
a
n
d
co
n
tr
o
l
s
y
s
te
m
i
n
s
talled
,
th
e
p
u
m
p
s
w
o
r
k
b
et
w
ee
n
(
2
6
0
m
to
3
2
0
m
lo
ad
)
an
d
m
o
to
r
at
a
s
p
ee
d
o
f
1
7
9
2
r
p
m
.
Fo
r
th
e
p
r
o
p
o
s
ed
ap
p
licatio
n
,
it
is
co
n
s
id
er
ed
th
at
th
e
p
u
m
p
s
w
o
r
k
at
a
co
n
s
ta
n
t
lo
ad
o
f
2
8
0
m
an
d
t
h
e
m
o
to
r
s
p
ee
d
c
o
r
r
esp
o
n
d
s
to
an
y
co
n
d
itio
n
w
i
th
i
n
h
y
d
r
au
lic
ch
ar
ac
ter
is
tic
o
f
t
h
e
p
u
m
p
an
d
is
t
h
e
m
ax
i
m
u
m
w
o
r
k
in
g
s
p
ee
d
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
E
n
g
,
Vo
l.
9
,
No
.
2
,
A
p
r
il 2
0
1
9
:
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3
2
-
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4
1
736
T
h
e
v
ar
iab
le
s
p
ee
d
d
r
iv
e
m
u
s
t
s
ati
s
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y
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e
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ater
d
e
m
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d
o
f
th
e
b
o
iler
s
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m
o
v
i
n
g
t
h
e
o
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er
atio
n
p
o
in
t
u
p
to
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e
co
n
s
ta
n
t
lo
ad
li
n
e,
f
r
o
m
a
m
a
x
i
m
u
m
s
p
ee
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to
a
m
i
n
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m
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m
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ee
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ar
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n
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e
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i
n
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m
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m
s
af
e
f
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w
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as
s
h
o
w
n
in
Fi
g
u
r
e
2
.
I
n
th
is
f
i
g
u
r
e,
t
h
e
ch
ar
ac
ter
is
ti
cs
o
f
t
h
e
p
u
m
p
f
o
r
d
if
f
er
en
t
w
o
r
k
i
n
g
s
p
ee
d
s
ar
e
s
h
o
w
n
i
n
p
ar
allel
to
th
e
o
p
er
atin
g
c
h
ar
ac
ter
is
tic
g
iv
e
n
b
y
t
h
e
m
a
n
u
f
ac
tu
r
er
an
d
co
r
r
esp
o
n
d
in
g
to
th
e
m
ax
i
m
u
m
s
p
ee
d
.
T
h
e
s
p
ee
d
s
o
f
ea
ch
cu
r
v
e
ar
e
in
d
icate
d
as
n
m
in
,
n
1
, n
2
... .n
m
ax
.
Fig
u
r
e
2
.
C
h
ar
ac
ter
is
t
ics o
f
t
h
e
p
u
m
p
f
o
r
d
if
f
er
en
t
s
p
ee
d
s
.
So
u
r
ce
:
s
elf
-
m
ad
e
I
n
Fi
g
u
r
e
2
t
h
e
h
y
d
r
au
lic
lo
a
d
cu
r
v
e
o
f
t
h
e
r
ec
ir
c
u
latio
n
h
as
b
ee
n
in
d
icate
d
i
n
g
r
ee
n
.
T
h
is
cu
r
v
e
co
r
r
esp
o
n
d
s
to
a
q
u
ad
r
atic
ex
p
r
ess
io
n
o
f
t
h
e
f
o
r
m
:
H
K
Q
2
(
5
)
Kn
o
w
i
n
g
th
a
t
f
o
r
s
a
f
e
m
i
n
i
m
u
m
f
lo
w
Q
m
in
=
3
0
m
3
/
h
a
t
t
h
e
m
a
x
i
m
u
m
w
o
r
k
i
n
g
s
p
ee
d
,
H
=
3
3
4
m
,
f
r
o
m
eq
u
atio
n
(
5
)
,
th
e
ca
lc
u
la
ted
co
ef
f
ic
ien
t
K
=
0
.
3
7
1
.
Fro
m
t
h
is
ex
p
r
es
s
io
n
a
n
d
f
o
r
H
=
2
8
0
m
,
Q
'm
i
n
=
2
7
.
4
7
m
3
/
h
.
A
cc
o
r
d
in
g
to
th
e
af
f
i
n
it
y
la
w
s
,
th
e
m
i
n
i
m
u
m
s
p
ee
d
is
d
eter
m
i
n
ed
as:
(
4
)
T
h
e
s
p
ee
d
r
an
g
e
ca
lc
u
lated
t
h
en
i
s
f
r
o
m
1
6
4
0
to
1
7
9
2
r
p
m
.
T
h
e
s
elec
tio
n
o
f
t
h
e
v
ar
iab
le
s
p
ee
d
d
r
iv
e
is
m
ad
e
co
n
s
id
er
in
g
th
e
f
o
llo
w
i
n
g
k
e
y
asp
ec
ts
:
a.
C
h
ar
ac
ter
is
tics
o
f
t
h
e
m
o
to
r
to
b
e
co
n
tr
o
lled
:
P
o
w
er
:
2
0
0
k
W
,
No
m
i
n
al
v
o
lta
g
e:
4
8
0
V,
No
m
i
n
al
f
r
eq
u
en
c
y
: 6
0
Hz,
No
m
i
n
al
cu
r
r
en
t: 2
9
3
A
,
No
m
i
n
al
s
p
ee
d
: 1
7
9
0
r
p
m
.
b.
T
y
p
e
o
f
lo
ad
: L
o
ad
t
y
p
e
ce
n
tr
i
f
u
g
al
p
u
m
p
o
f
v
ar
iab
le
m
o
m
e
n
t.
c.
E
n
v
ir
o
n
m
e
n
tal
a
n
d
w
o
r
k
i
n
g
c
o
n
d
itio
n
s
:
Heig
h
t
ab
o
v
e
s
ea
l
ev
el
b
elo
w
1
0
0
0
m
a
n
d
a
m
b
i
en
t
te
m
p
er
at
u
r
e
b
elo
w
5
0
°
C
.
L
o
ca
ted
in
a
co
n
tr
o
l
r
o
o
m
w
i
th
g
o
o
d
en
v
ir
o
n
m
e
n
tal
co
n
d
it
io
n
s
,
ab
s
e
n
ce
o
f
m
a
g
n
etic
p
o
w
d
er
s
,
co
n
d
u
cti
v
e
d
u
s
t a
n
d
d
r
y
e
n
v
ir
o
n
m
e
n
t.
d.
No
m
i
n
al
n
et
w
o
r
k
co
n
d
itio
n
s
:
No
m
i
n
al
v
o
lta
g
e:
4
8
0
V
an
d
Fre
q
u
en
c
y
: 6
0
Hz.
e.
Nee
d
s
f
o
r
th
e
co
n
tr
o
l:
At
lea
s
t
o
n
e
a
n
alo
g
i
n
p
u
t
(
s
i
g
n
a
ls
f
r
o
m
0
to
1
0
V
D
C
o
r
f
r
o
m
0
to
2
0
m
A
D
C
)
to
p
r
o
g
r
am
t
h
e
p
r
ess
u
r
e
r
ef
er
en
c
e
to
th
e
v
ar
iab
le
s
p
ee
d
d
r
iv
e
.
C
o
n
s
id
er
in
g
t
h
e
ab
o
v
e
ch
ar
a
cter
is
tics
a
n
d
th
e
n
o
m
i
n
al
c
u
r
r
en
t
o
f
th
e
e
x
is
t
in
g
m
o
to
r
,
an
in
v
er
ter
MI
C
R
OM
AST
E
R
4
4
0
,
Siem
e
n
s
,
t
y
p
e
6
SE6
4
4
0
2
UD4
1
3
GA
O,
r
ated
p
o
w
er
1
6
0
k
W
,
in
p
u
t
cu
r
r
en
t
2
9
6
.
4
A
,
o
u
tp
u
t c
u
r
r
e
n
t 3
0
2
A
,
s
ize
GX
an
d
w
ei
g
h
t o
f
1
9
0
k
g
,
w
as
s
el
ec
ted
.
3.
2
.
E
nerg
y
s
a
v
ing
T
h
e
u
s
e
o
f
a
v
ar
iab
le
s
p
ee
d
d
r
iv
e
i
m
p
licitl
y
s
av
e
s
e
n
er
g
y
.
T
h
e
p
o
w
er
r
eq
u
ir
ed
b
e
f
o
r
e
an
d
a
f
ter
v
ar
y
i
n
g
t
h
e
m
o
to
r
s
p
ee
d
is
ca
lcu
lated
f
r
o
m
t
h
e
m
o
s
t
p
r
o
b
ab
le
f
lo
w
r
ate
th
a
t
is
s
u
p
p
lied
to
th
e
b
o
iler
s
.
I
n
t
h
e
p
r
esen
t
ca
s
e
s
t
u
d
y
,
th
i
s
f
lo
w
is
6
5
.
8
7
m
3
/
h
ac
co
r
d
in
g
to
th
e
r
es
u
lt
s
o
f
a
s
tatis
tical
a
n
a
l
y
s
i
s
b
ased
o
n
t
h
e
in
f
o
r
m
atio
n
r
eg
is
ter
ed
b
y
t
h
e
SC
AD
A
s
y
s
te
m
.
A
d
d
i
n
g
t
h
e
r
ec
ir
cu
latio
n
f
lo
w
r
ate
o
f
3
0
m
3
/
h
,
a
to
tal
o
f
9
5
.
8
7
m
3
/
h
i
s
o
b
tain
ed
.
T
h
e
in
ter
ce
p
tio
n
o
f
t
h
is
v
al
u
e
w
it
h
t
h
e
p
u
m
p
ch
ar
ac
ter
is
tic
o
f
Fig
u
r
e
1
s
h
o
w
s
t
h
a
t
th
e
co
r
r
esp
o
n
d
in
g
lo
ad
is
H
=
3
2
0
m
an
d
th
e
p
o
w
er
r
eq
u
ir
ed
b
y
t
h
e
p
u
m
p
is
1
3
2
k
W
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
n
t J
E
lec
&
C
o
m
p
E
n
g
I
SS
N:
2
0
8
8
-
8708
F
lo
w
r
eg
u
la
tio
n
a
t c
o
n
s
ta
n
t h
ea
d
in
feed
w
a
ter
p
u
m
p
s
in
a
s
u
g
a
r
in
d
u
s
tr
y
(
Ju
lio
R
.
Gó
mez
)
737
Op
er
atin
g
w
it
h
v
ar
iatio
n
o
f
s
p
ee
d
m
ai
n
tain
in
g
th
e
co
n
s
tan
t
lo
ad
,
th
e
f
lo
w
o
f
w
at
er
to
f
ee
d
(
9
5
.
8
7
m
3
/
h
)
to
2
8
0
m
o
f
l
o
ad
,
r
ep
r
esen
ts
,
ac
co
r
d
in
g
to
th
e
eq
u
atio
n
(
2
)
,
a
u
s
ef
u
l
p
o
w
er
s
u
p
p
lied
b
y
th
e
p
u
m
p
to
th
e
f
l
u
id
o
f
6
9
.
9
3
k
W
.
T
h
en
f
o
r
a
6
0
%
p
u
m
p
ef
f
i
cien
c
y
t
h
e
m
ec
h
a
n
ical
p
o
w
er
is
1
1
6
.
5
5
k
W
.
T
h
is
p
o
w
er
ca
n
also
b
e
o
b
tain
ed
b
y
in
ter
p
o
latin
g
th
e
p
o
w
er
cu
r
v
e
s
in
Fi
g
u
r
e
1
f
o
r
th
e
n
e
w
o
p
er
atin
g
p
o
in
t.
T
h
e
elec
tr
ical
p
o
w
er
d
e
m
a
n
d
ed
b
y
t
h
e
m
o
to
r
is
ca
lc
u
lated
f
r
o
m
t
h
e
esti
m
atio
n
o
f
t
h
e
ef
f
icie
n
c
y
i
n
th
e
t
w
o
o
p
er
atin
g
co
n
d
itio
n
s
(
m
o
s
t
p
r
o
b
ab
le
cu
r
r
en
t
a
n
d
f
u
t
u
r
e
w
it
h
i
n
v
er
ter
)
.
Fo
r
th
i
s
,
t
h
e
lo
ad
f
ac
to
r
o
f
t
h
e
m
o
to
r
w
a
s
d
eter
m
i
n
ed
in
b
o
th
ca
s
es a
s
f
o
llo
w
in
g
:
a.
L
o
ad
f
ac
to
r
o
f
th
e
m
o
to
r
(
Kc
current
)
in
th
e
m
o
s
t p
r
o
b
ab
le
cu
r
r
en
t c
o
n
d
itio
n
.
(
5
)
b.
L
o
ad
f
ac
to
r
o
f
th
e
m
o
to
r
i
n
t
h
e
m
o
s
t
p
r
o
b
ab
le
f
lo
w
co
n
d
itio
n
at
co
n
s
ta
n
t
lo
ad
u
s
i
n
g
v
ar
ia
b
le
s
p
ee
d
d
r
iv
e
(
Kc
planned
):
(
6
)
T
ab
le
2
s
h
o
w
s
t
h
e
e
f
f
icien
c
y
f
o
r
b
o
th
ca
s
es
o
b
tain
ed
f
r
o
m
li
n
ea
r
in
ter
p
o
latio
n
f
r
o
m
t
h
e
d
ata
o
f
T
ab
le
1
.
T
ab
le
2
.
Mo
t
o
r
E
f
f
icien
c
y
i
n
b
o
th
C
ase
s
L
o
a
d
f
a
c
t
o
r
(
%)
M
o
t
o
r
e
f
f
i
c
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e
n
c
y
(
%)
Ef
f
i
c
i
e
n
c
y
S
e
t
M
o
t
o
r
-
V
a
r
i
a
b
l
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sp
e
e
d
d
r
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v
e
(
%)
0
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6
6
9
4
.
8
3
%
-
0
.
5
8
9
4
.
8
2
%
9
1
.
9
8
%
T
h
e
ef
f
ic
ien
c
y
o
f
t
h
e
v
ar
iab
le
s
p
ee
d
d
r
iv
e
(
v
s
d
)
is
9
7
%,
ac
co
r
d
in
g
to
t
h
e
m
an
u
f
ac
t
u
r
er
's
tech
n
ica
l
s
p
ec
if
icatio
n
s
.
T
h
e
r
ed
u
ctio
n
o
f
in
s
tan
ta
n
eo
u
s
elec
tr
ic
p
o
w
e
r
d
em
a
n
d
ed
is
esti
m
ated
as:
(
)
(
)
(
7
)
T
h
e
en
er
g
y
s
av
ed
an
n
u
all
y
co
n
s
id
er
in
g
a
h
ar
v
e
s
t
o
f
1
3
0
d
ay
s
an
d
8
5
%
o
f
n
o
n
-
s
to
p
u
s
e,
is
ca
lcu
la
ted
as:
(
8
)
As
th
e
s
u
g
ar
m
ill
is
s
y
n
c
h
r
o
n
ized
w
i
th
t
h
e
SEN
an
d
ex
p
o
r
ts
th
e
s
u
r
p
lu
s
en
er
g
y
,
th
e
s
av
i
n
g
o
f
elec
tr
ical
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er
g
y
u
s
in
g
t
h
e
v
a
r
iab
le
s
p
ee
d
d
r
iv
e
ca
n
b
e
s
o
ld
.
T
h
er
ef
o
r
e,
r
ev
en
u
e
s
ar
e
ca
lcu
lated
ac
co
r
d
in
g
to
th
e
av
er
a
g
e
s
ale
p
r
ice
o
f
elec
tr
ic
p
o
w
er
.
3.
3
.
E
nv
iro
n
m
ent
a
l
b
enef
it
T
h
e
en
v
ir
o
n
m
e
n
tal
i
m
p
ac
t
d
u
e
to
th
e
u
s
e
o
f
t
h
e
v
ar
iab
le
s
p
ee
d
d
r
iv
e,
d
u
e
to
en
er
g
y
s
a
v
in
g
,
is
th
e
p
o
ten
tial
to
r
ed
u
ce
g
r
ee
n
h
o
u
s
e
g
a
s
e
s
o
r
o
th
er
ele
m
e
n
ts
t
h
at
ca
u
s
e
n
e
g
ati
v
e
i
m
p
ac
t
to
th
e
en
v
ir
o
n
m
e
n
t.
T
h
e
in
cr
ea
s
e
in
en
er
g
y
ef
f
ici
en
c
y
i
n
th
e
s
u
g
ar
in
d
u
s
tr
y
h
as
an
en
v
ir
o
n
m
en
tal
b
en
ef
it
b
ec
au
s
e
th
e
en
er
g
y
s
av
ed
ca
n
b
e
e
x
p
o
r
ted
to
th
e
S
E
N.
T
h
u
s
,
t
h
e
e
n
er
g
y
g
e
n
er
ate
d
w
i
th
f
o
s
s
il
f
u
el
is
r
ep
lace
d
b
y
e
n
er
g
y
p
r
o
d
u
ce
d
f
r
o
m
b
io
m
a
s
s
.
I
n
th
e
ca
s
e
o
f
C
u
b
a,
th
e
p
o
ten
tial
m
iti
g
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o
f
C
O
2
e
m
i
s
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io
n
s
f
o
r
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g
y
s
a
v
in
g
p
r
o
j
ec
ts
ca
n
b
e
ca
lcu
lated
b
y
t
h
e
e
m
is
s
io
n
i
n
d
ex
o
f
0
.
7
9
4
t
/
MW
h
esti
m
ated
b
y
m
eth
o
d
o
lo
g
y
p
r
o
p
o
s
ed
in
[
3
7
]
.
A
s
th
e
an
n
u
al
en
er
g
y
s
a
v
i
n
g
p
o
ten
t
ial
is
3
4
2
3
0
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5
1
k
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h
,
t
h
en
th
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p
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ten
t
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o
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m
iti
g
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n
g
C
O
2
e
m
i
s
s
io
n
s
i
s
2
7
.
1
7
t /
y
ea
r
.
3.
4
.
E
co
no
m
ic
a
na
ly
s
is
T
h
e
ec
o
n
o
m
i
c
a
n
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y
s
i
s
a
n
d
t
h
e
f
ea
s
ib
ili
t
y
o
f
t
h
e
i
n
v
est
m
en
t
w
er
e
m
ad
e
u
s
i
n
g
d
is
co
u
n
ted
f
lo
w
tech
n
iq
u
es,
s
p
ec
i
f
icall
y
t
h
e
Net
P
r
esen
t
Valu
e
(
NP
V)
an
d
th
e
P
ay
b
ac
k
P
er
io
d
(
PP
)
.
T
h
e
ec
o
n
o
m
ic
d
ata
u
s
ed
ar
e:
a.
Usef
u
l li
f
e:
1
0
y
ea
r
s
.
Evaluation Warning : The document was created with Spire.PDF for Python.
I
SS
N
:
2
0
8
8
-
8708
I
n
t J
E
lec
&
C
o
m
p
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n
g
,
Vo
l.
9
,
No
.
2
,
A
p
r
il 2
0
1
9
:
7
3
2
-
7
4
1
738
b.
I
n
itial i
n
v
e
s
t
m
en
t,
m
ai
n
l
y
d
u
e
to
th
e
ac
q
u
is
i
tio
n
co
s
t o
f
t
h
e
v
ar
iab
le
s
p
ee
d
d
r
iv
e:
1
6
9
5
1
.
5
4
USD.
c.
E
n
er
g
y
s
ale
p
r
ice:
0
.
0
8
7
7
USD
/ k
W
h
,
d.
B
an
k
i
n
ter
est r
ate:
8
%
[
3
8
]
.
e.
T
ax
o
n
p
r
o
f
its
: 3
5
% [
3
9
]
f.
E
n
er
g
y
in
f
lat
io
n
: 3
%.
g.
R
is
k
m
ar
g
i
n
: 2
%.
h.
Dep
r
ec
iatio
n
is
co
n
s
id
er
ed
lin
ea
r
.
T
h
e
ca
s
h
f
lo
w
f
o
r
ea
ch
y
ea
r
i
af
ter
tax
e
s
is
ca
lc
u
lated
as:
(
(
)
)
(
)
(
9
)
w
h
er
e
I
is
th
e
tax
r
ate;
Dep
i
s
d
ep
r
ec
iatio
n
,
an
d
it
is
ca
lcu
lated
as
;
I
o
is
th
e
in
itial
i
n
v
e
s
t
m
e
n
t,
i
n
USD;
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e
is
t
h
e
p
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e
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er
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y
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eq
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al
to
th
e
a
v
er
ag
e
s
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r
ice
(
0
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0
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7
7
USD/k
W
h
)
an
d
∆E
i
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th
e
e
n
er
g
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s
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ed
in
t
h
e
y
ea
r
i,
in
k
W
h
/
y
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ar
,
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al
to
3
4
2
3
0
.
5
1
k
W
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r
.
T
o
u
p
d
ate
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e
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s
h
f
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w
s
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t
h
e
y
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r
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n
w
h
ic
h
t
h
e
in
v
es
t
m
en
t
is
m
ad
e,
th
e
d
is
co
u
n
t
f
ac
to
r
f
o
r
ea
ch
y
ea
r
i is ca
lcu
lated
as:
(
1
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)
T
h
e
d
is
co
u
n
t f
ac
to
r
f
o
r
a
b
an
k
in
ter
est r
ate
r
is
ca
lcu
lated
as:
(
)
(
1
1
)
T
h
e
NP
V
is
eq
u
al
to
th
e
s
u
m
o
f
all
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e
d
is
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ca
s
h
f
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s
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u
r
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g
t
h
e
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s
e
f
u
l
l
if
e
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f
t
h
e
in
v
e
s
t
m
e
n
t,
ex
p
r
ess
ed
as:
∑
(
1
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)
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h
e
Net
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t
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e
w
as
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th
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P
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w
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h
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r
esu
l
ts
s
h
o
w
t
h
at
th
e
in
v
e
s
t
m
e
n
t
is
p
r
o
f
itab
le
s
in
c
e
th
e
NP
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is
p
o
s
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v
e,
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t
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s
e
its
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e
is
s
m
all,
a
n
d
th
e
in
v
e
s
t
m
e
n
t
i
s
r
ec
o
v
er
ed
at
t
h
e
e
n
d
o
f
th
e
u
s
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l
li
f
e
o
f
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e
eq
u
ip
m
e
n
t.
T
h
is
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s
d
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e
to
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e
h
ig
h
i
n
it
ial
in
v
e
s
t
m
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n
t c
o
s
t a
n
d
t
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e
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ed
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y
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av
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s
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h
ie
v
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an
n
u
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y
s
in
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t
h
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s
u
g
ar
in
d
u
s
tr
y
in
C
u
b
a
is
c
y
c
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h
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n
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3
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ay
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p
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y
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ap
p
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x
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m
a
tel
y
.
Ho
w
e
v
er
,
if
it
is
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n
s
id
er
ed
th
at
th
e
e
n
er
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y
s
a
v
ed
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ep
lace
s
th
e
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s
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o
f
f
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s
s
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f
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s
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ce
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h
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f
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.
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at
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g
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ed
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s
,
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.
2
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e
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is
1
9
2
7
7
.
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d
th
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P
P
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.
8
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y
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ab
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3
s
u
m
m
ar
ize
s
th
e
r
es
u
lt
s
o
f
th
e
ec
o
n
o
m
ic
an
al
y
s
is
f
o
r
th
ese
t
w
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s
ce
n
ar
io
s
.
T
ab
le
3
.
R
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lts
o
f
th
e
E
co
n
o
m
ic
An
al
y
s
is
f
o
r
th
e
t
w
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s
ce
n
ar
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s
S
c
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n
a
r
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o
s
En
e
r
g
y
sav
i
n
g
,
∆
E
(
k
W
h
/
y
e
a
r
)
En
e
r
g
y
p
r
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c
e
s
(
U
S
D
/
k
W
h
)
V
P
N
(
U
S
D
)
PP
(
y
e
a
r
s)
B
u
s
i
n
e
ss fo
c
u
s
3
4
2
3
0
.
5
1
0
.
0
8
3
0
1
.
5
6
9
.
7
8
G
o
v
e
r
n
me
n
t
f
o
c
u
s
3
4
2
3
0
.
5
1
0
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2
1
1
9
2
7
7
.
6
0
3
.
8
7
Of
th
e
ec
o
n
o
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ic
v
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les
u
s
ed
,
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e
en
er
g
y
p
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ice
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d
th
e
d
is
co
u
n
t
r
ate
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e
v
ar
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le.
T
h
e
f
ir
s
t
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ep
en
d
s
o
n
th
e
v
ar
iatio
n
s
in
t
h
e
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o
n
tro
l
led
Co
n
d
it
io
n
s
in
t
h
e
P
re
se
n
c
e
s
o
f
Un
b
a
lan
c
e
d
a
n
d
Ha
rm
o
n
ics
V
o
l
tag
e
s,”
in
2
0
1
5
CHILE
AN
Co
n
f
e
re
n
c
e
o
n
El
e
c
trica
l,
E
lec
tro
n
ic
s
En
g
i
n
e
e
rin
g
,
In
fo
rm
a
t
io
n
a
n
d
Co
mm
u
n
ica
ti
o
n
T
e
c
h
n
o
l
o
g
ies
(
CHILE
CON),
S
a
n
t
ia
g
o
,
2
0
1
5
,
p
p
.
5
6
7
-
5
.
[1
0
]
V
.
S
o
u
sa
,
e
t
a
l.
,
“
S
h
a
f
t
P
o
w
e
r
Esti
m
a
ti
o
n
in
In
d
u
c
ti
o
n
M
o
t
o
r
Op
e
ra
ti
n
g
u
n
d
e
r
U
n
b
a
lan
c
e
d
a
n
d
Ha
rm
o
n
ics
V
o
l
tag
e
s
,”
IEE
E
L
a
t
in
Ame
ric
a
T
ra
n
sa
c
ti
o
n
s
,
v
o
l.
1
4
,
n
o
.
5
,
p
p
.
2
3
0
9
-
2
3
1
5
,
2
0
1
6
.
[1
1
]
M
.
Ko
o
r,
e
t
a
l.
,
“
Op
ti
m
iza
ti
o
n
o
f
P
u
m
p
Ef
f
i
c
ien
c
ies
w
it
h
d
if
f
e
re
n
t
P
u
m
p
s
Ch
a
ra
c
teristics
W
o
rk
in
g
i
n
P
a
ra
ll
e
l
M
o
d
e
,
”
A
d
v
a
n
c
e
s in
E
n
g
i
n
e
e
rin
g
S
o
ft
w
a
re
,
v
o
l.
1
0
1
,
p
p
.
6
9
-
7
6
,
2
0
1
6
.
[1
2
]
V
.
S
o
u
sa
,
e
t
a
l.
,
“
Ha
rm
o
n
ic
Disto
rti
o
n
Ev
a
lu
a
ti
o
n
G
e
n
e
ra
t
e
d
b
y
P
W
M
M
o
t
o
r
Driv
e
s
in
El
e
c
tri
c
a
l
In
d
u
stria
l
S
y
st
e
m
s,”
In
ter
n
a
ti
o
n
a
l
J
o
u
r
n
a
l
o
f
El
e
c
trica
l
a
n
d
C
o
mp
u
ter
En
g
i
n
e
e
rin
g
(
IJ
ECE
)
,
v
o
l.
7
,
n
o
.
6
,
p
p
.
3
2
0
7
-
3
2
1
6
,
2
0
1
7
.
[1
3
]
V
.
S
o
u
sa
,
e
t
a
l.
,
“
A
n
a
l
y
sis
o
f
Ha
r
m
o
n
ic
Disto
rti
o
n
G
e
n
e
ra
te
d
b
y
P
W
M
M
o
to
r
Driv
e
s
,”
in
2
0
1
7
IEE
E
W
o
rk
sh
o
p
o
n
Po
we
r E
lec
tro
n
ics
a
n
d
Po
we
r Q
u
a
li
ty A
p
p
li
c
a
ti
o
n
s (
PE
PQA)
,
B
o
g
o
ta
,
2
0
1
7
,
p
p
.
1
-
6.
[1
4
]
P
.
Olsz
e
ws
k
i,
“
Ge
n
e
ti
c
Op
ti
m
iz
a
ti
o
n
a
n
d
Ex
p
e
rim
e
n
tal
V
e
rif
ica
t
io
n
o
f
Co
m
p
lex
P
a
ra
ll
e
l
P
u
m
p
in
g
S
tatio
n
w
it
h
Ce
n
tri
f
u
g
a
l
P
u
m
p
s
,
”
Ap
p
li
e
d
En
e
rg
y
,
v
o
l.
1
7
8
,
p
p
.
5
2
7
-
5
3
9
,
2
0
1
6
.
[1
5
]
M
.
D.
Z.
Iz
q
u
ierd
o
a
n
d
J.
J.
S
.
Jim
é
n
e
z
,
“
Op
e
ra
c
ió
n
ó
p
ti
m
a
d
e
b
o
m
b
a
s
e
n
p
a
ra
lelo
e
m
p
lea
n
d
o
v
a
riad
o
re
s
d
e
v
e
lo
c
id
a
d
,
”
In
g
e
n
ier
ía
s
,
v
o
l.
1
3
,
n
o
.
4
6
,
p
.
5
7
,
2
0
1
0
.
[1
6
]
Z.
M
a
a
n
d
S
.
W
a
n
g
,
“
A
n
Op
ti
m
a
l
Co
n
tro
l
S
trate
g
y
f
o
r
Co
m
p
lex
Bu
il
d
in
g
Ce
n
tral
Ch
il
led
W
a
ter
S
y
ste
m
s
f
o
r
P
ra
c
t
ica
l
a
n
d
Re
a
l
-
ti
m
e
A
p
p
li
c
a
ti
o
n
s,”
B
u
il
d
in
g
a
n
d
En
v
ir
o
n
me
n
t
,
v
o
l.
4
4
,
p
p
.
1
1
8
8
-
1
1
9
8
,
2
0
0
9
.
[1
7
]
S
.
W
a
n
g
,
“
In
telli
g
e
n
t
Bu
il
d
i
n
g
s an
d
B
u
il
d
in
g
A
u
to
m
a
ti
o
n
,
”
S
p
o
n
P
re
ss
,
L
o
n
d
o
n
,
2
0
1
0
,
p
p
.
2
0
3
.
[1
8
]
M
.
I.
Ja
h
m
e
e
rb
a
c
u
s,
“
F
lo
w
Ra
te
R
e
g
u
latio
n
o
f
a
V
a
riab
le
S
p
e
e
d
Driv
e
n
P
u
m
p
in
g
S
y
ste
m
u
sin
g
F
u
z
z
y
L
o
g
ic
,
”
in
4
th
In
ter
n
a
ti
o
n
a
l
Co
n
fer
e
n
c
e
o
n
El
e
c
tric
Po
we
r
a
n
d
En
e
rg
y
Co
n
v
e
rs
io
n
S
y
ste
ms
(
EP
ECS
)
,
S
h
a
rjah
,
Un
it
e
d
A
ra
b
Em
irate
s,
2
0
1
5
.
[1
9
]
C.
A
.
S
o
lan
o
,
e
t
a
l.
,
“
S
istem
a
d
e
c
o
n
tro
l
d
e
p
re
sió
n
p
a
ra
e
l
su
m
in
istro
d
e
a
g
u
a
e
n
la
c
e
n
tral
d
e
se
rv
icio
s
d
e
l
c
e
n
tr
o
m
é
d
ico
n
a
c
io
n
a
l
la raz
a
,
”
M
é
x
ico
,
2
0
1
2
.
[2
0
]
J.
A
.
S
a
a
v
e
d
ra
,
“
Co
n
tro
l
d
e
p
re
si
ó
n
m
e
d
ian
te v
a
riad
o
r
d
e
f
re
c
u
e
n
c
ia y
m
o
to
b
o
m
b
a
,
”
Ch
il
e
,
2
0
0
7
.
[2
1
]
R.
A
.
Ca
stil
lo
,
“
A
u
to
m
a
ti
z
a
c
ió
n
d
e
l
siste
m
a
d
e
b
o
m
b
a
s d
e
a
g
u
a
f
r
ía
d
e
f
á
b
rica
d
e
tejid
o
s
im
p
e
rial
S
.
A
.
,
”
2
0
0
9
.
[2
2
]
J.
J.
G
a
rc
í
a
,
e
t
a
l.
,
“
M
o
d
e
lad
o
y
s
im
u
lac
ió
n
d
e
u
n
a
b
o
m
b
a
c
e
n
trí
f
u
g
a
c
o
n
m
o
to
r
m
o
n
o
f
á
sic
o
e
n
S
imu
li
n
k
,
”
Rev
ista
Co
lo
mb
ia
n
a
d
e
T
e
c
n
o
lo
g
ía
s
d
e
A
v
a
n
za
d
a
,
v
o
l.
2
,
n
o
.
2
2
,
p
p
.
7
8
-
8
4
,
2
0
1
3
.
[2
3
]
P
.
G
ó
m
e
z
,
e
t
a
l.
,
“
P
ro
c
e
d
im
ien
t
o
p
a
ra
la
se
lec
c
ió
n
d
e
la
e
stra
teg
ia
d
e
re
g
u
lac
ió
n
m
á
s
a
d
e
c
u
a
d
a
e
n
e
sta
c
io
n
e
s
d
e
b
o
m
b
e
o
,
”
in
I
V
J
o
rn
a
d
a
s d
e
I
n
g
e
n
ier
ía
d
e
l
Ag
u
a
,
JIA
2
0
1
5
,
C
ó
rd
o
b
a
,
Esp
a
ñ
a
,
2
0
1
5
,
p
p
.
1
1
9
1
-
1
2
0
2
.
[2
4
]
H.
Día
z
,
e
t
a
l
.
,
“
Dise
ñ
o
d
e
u
n
siste
m
a
d
e
c
o
n
tro
l
p
a
ra
o
b
te
n
e
r
p
re
sió
n
c
o
n
sta
n
te
d
e
a
g
u
a
,
”
in
XX
II
Co
n
g
re
s
o
In
ter
n
a
c
i
o
n
a
l
d
e
I
n
g
e
n
ier
ía
E
léc
trica
,
El
e
c
tró
n
ica
,
C
o
mp
u
ta
c
i
ó
n
y
Af
in
e
s
,
Hu
a
n
c
a
y
o
,
P
e
rú
,
2
0
1
5
.
[2
5
]
F
.
E.
Ho
y
o
s,
e
t
a
l.
,
"
S
e
lec
ti
o
n
a
n
d
V
a
li
d
a
ti
o
n
o
f
M
a
t
h
e
m
a
ti
c
a
l
M
o
d
e
ls
o
f
P
o
w
e
r
Co
n
v
e
rter
s
u
sin
g
Ra
p
id
M
o
d
e
li
n
g
a
n
d
Co
n
tro
l
P
ro
to
ty
p
in
g
M
e
th
o
d
s
,
”
In
ter
n
a
t
io
n
a
l
J
o
u
rn
a
l
o
f
El
e
c
trica
l
a
n
d
C
o
mp
u
ter
En
g
in
e
e
rin
g
(
IJ
ECE
)
,
v
o
l.
8
,
n
o
.
3
,
p
p
.
1
5
5
1
-
1
5
6
8
,
2
0
1
8
.
[2
6
]
J.
R.
G
ó
m
e
z
,
e
t
a
l.
,
“
Ex
p
e
rie
n
c
ia
d
e
a
p
li
c
a
c
ió
n
d
e
a
c
c
io
n
a
m
ien
to
d
e
v
e
lo
c
id
a
d
v
a
riab
le.
o
p
c
ió
n
d
e
a
lt
o
c
o
m
p
o
rta
m
ien
to
p
a
ra
la g
e
stió
n
e
n
e
rg
é
ti
c
a
,
”
in
4
8
Co
n
g
re
so
d
e
la
AT
AC
,
L
a
Ha
b
a
n
a
,
2
0
0
2
.
[2
7
]
Y.
De
lg
a
d
o
,
“
Estu
d
i
o
d
e
f
a
c
ti
b
il
id
a
d
téc
n
ico
-
e
c
o
n
ó
m
ica
d
e
re
g
u
lac
ió
n
d
e
la
c
a
p
a
c
id
a
d
c
o
n
v
a
riad
o
r
e
s
d
e
f
r
e
c
u
e
n
c
ia
d
e
las
b
o
m
b
a
s d
e
a
g
u
a
d
e
a
li
m
e
n
tar d
e
la CT
E
„Ca
rlo
s
ma
M
a
n
u
e
l
d
e
Cé
sp
e
d
e
s‟.
Cien
f
u
e
g
o
s.
Cu
b
a
,
”
2
0
1
4
.
[2
8
]
V
.
A
.
S
h
a
n
k
a
r,
e
t
a
l.
,
“
Re
a
l
T
ime
S
im
u
latio
n
o
f
V
a
riab
le
S
p
e
e
d
P
a
ra
ll
e
l
P
u
m
p
in
g
S
y
s
te
m
,
”
En
e
rg
y
Pro
c
e
d
ia
,
v
o
l.
1
4
2
,
p
p
.
2
1
0
2
-
2
1
0
8
,
2
0
1
7
.
[2
9
]
J.
V
ih
o
l
a
in
e
n
,
“
En
e
rg
y
-
e
f
f
i
c
ien
t
C
o
n
tr
o
l
S
trate
g
ies
f
o
r
V
a
riab
le
S
p
e
e
d
Driv
e
n
P
a
ra
ll
e
l
P
u
m
p
in
g
S
y
ste
m
s
b
a
se
d
o
n
P
u
m
p
Op
e
ra
ti
o
n
P
o
i
n
t
M
o
n
it
o
r
in
g
w
it
h
F
re
q
u
e
n
c
y
Co
n
v
e
rters
,
”
Ac
t
Un
iv
e
rsitatis
L
a
p
p
e
e
n
ra
n
tae
n
sis,
2
0
1
4
.
[3
0
]
F
.
J.
F
e
rre
ira,
e
t
a
l.
,
“
Eco
a
n
a
ly
s
is
o
f
Va
riab
le
-
sp
e
e
d
D
riv
e
s
f
o
r
F
lo
w
Re
g
u
latio
n
in
P
u
m
p
in
g
S
y
ste
m
s
,
”
IEE
E
T
ra
n
sa
c
ti
o
n
s
o
n
In
d
u
stri
a
l
El
e
c
tr
o
n
ics
,
v
o
l
.
5
8
,
n
o
.
6
,
p
p
.
2
1
1
7
-
2
1
2
5
,
2
0
1
1
.
[3
1
]
J.
A
.
M
a
d
rig
a
l,
e
t
a
l.
,
“
P
lan
if
ica
c
ió
n
e
n
e
rg
é
ti
c
a
p
a
ra
e
l
a
h
o
rro
d
e
f
u
e
lo
il
e
n
u
n
a
lav
a
n
d
e
ría
in
d
u
str
i
a
l
,
”
In
g
e
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3
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re
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(
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re
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m
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d
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4
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re
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o
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m
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n
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e
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a
ry
2
2
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9
9
3
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re
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e
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g
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t
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f
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a
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n
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e
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se
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h
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e
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ter
(CEE
M
A
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o
f
th
e
Un
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y
o
f
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f
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e
g
o
s,
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b
a
.
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sp
e
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ialize
s
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th
e
m
e
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h
a
n
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a
re
a
s
o
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d
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f
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n
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e
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e
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a
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g
e
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t.
Per
c
y
R.
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o
Felip
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w
a
s
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o
rn
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f
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e
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o
s,
Cu
b
a
o
n
No
v
e
m
b
e
r
1
9
,
1
9
4
4
.
Re
c
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iv
e
d
th
e
B.
S
.
d
e
g
re
e
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El
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tri
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l
En
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th
e
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d
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e
Las
V
il
las
,
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n
ta
Clara
,
Cu
b
a
,
in
1
9
6
5
.
Re
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e
iv
e
d
th
e
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(P
h
.
D.)
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e
g
re
e
f
ro
m
th
e
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n
tral
Un
iv
e
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a
d
P
a
rti
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i
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ted
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ip
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p
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a
c
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e
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n
a
t
t
h
e
L
a
p
p
e
e
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ra
n
ta
U
n
iv
e
rsity
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f
T
e
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h
n
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g
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in
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d
,
in
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9
9
4
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n
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e
Ce
n
ter
o
f
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e
rg
y
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n
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iro
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tal
S
tu
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ies
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M
A
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F
a
c
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lt
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f
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g
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g
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d
d
e
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n
f
u
e
g
o
s,
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b
a
.
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e
r
n
a
n
H
e
r
n
á
n
d
e
z
H
e
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r
e
r
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wa
s
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rn
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f
u
e
g
o
s,
Cu
b
a
o
n
Ju
ly
7
,
1
9
7
6
.
Re
c
e
iv
e
d
th
e
B.
S
d
e
g
re
e
in
M
e
c
h
a
n
ica
l
En
g
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e
rin
g
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iv
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e
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n
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.
S
c
.
i
n
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e
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h
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n
ics
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ro
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iv
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d
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e
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e
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a
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re
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