ETL 1110-1-181
12 Jan 98
F i g u r e C 1 . O p t i m u m I P L V s fo r a
200 Ton Centrifugal Chiller
(Example 1)
0.54
1000 EFLH
2000 EFLH
0.56
3000 EFLH
4000 EFLH
0.58
0.6
0.62
0.64
0.66
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
En e r g y C o s t s ( $ / k W h )
T a b l e C 2 . S u m m a tion of Optim u m I P L V *
E n e r g y C o s t s ( $ / k W h)
EFLH
0.02
0.03
0.04
0.05
0.06
0.07
0.08
0.09
1000 EFLH
0.65
0.62
0.62
0.62
0.62
0.62
0.62
0.6
2000 EFLH
0.62
0.62
0.62
0.58
0.58
0.58
0.58
0.58
3000 EFLH
0.62
0.6
0.58
0.58
0.58
0.58
0.58
0.58
4000 EFLH
0.62
0.58
0.58
0.58
0.58
0.58
0.58
0.58
* The optimum IPLV is established when the SIR values calculated in Tables C4, C5,
C 6 a n d C 7 a p p r o a c h 1 . 0 0 . S I R va l u e s w h i c h a r e b e l o w 1 . 0 0 a r e n o t v i e w e d a s
c o s t e ffective. Table C3 provi d e s a s u m m a r y o f t h e e n e r g y u s a g e c a l c u l a t i o n s .
C a l c u l a t i o n C o n sta n t s:
Chiller Capacity
=
200
tons
E c o n o m i c L i fe
=
20
years
Discount Factor
=
13.09
M onthly Demand Charge
=
||content||
.00per kw
Demand Charge No. of Months
=
12
m onths
Non-Energy Savings Annual Recurring (+/-)
=
0
N o n - R e c u r r i n g S a vings (+ / - )
=
0
C-4
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