ETL 1110-1-181
12 Jan 98
Table C7. SIR Comparison for 200 Ton Chillers
running at an EFLH of 4000.
(Example 1)
Energy Costs
Energy Costs Incremental
Discounted
Simple
Net Present
($/kW-h)
IPLV
($/yr)
Savings ($/yr)
Savings
Payback (yrs) Value (NPV)
SIR
0.02
0.70
,200
-
-
-
,400
-
0.65
,400
0
,472
2.50
,928
5.24
0.62
,920
0
,283
4.79
,945
2.73
0.60
,600
0
,189
13.44
,056
0.97
0.58
,280
0
,189
15.62
,867
0.84
0.03
0.70
,800
-
-
-
,400
-
0.65
,600
||content||
,200
,708
1.67
,692
7.85
0.62
,880
0
,425
3.19
,567
4.10
0.60
,400
0
,283
8.96
,584
1.46
0.58
,920
0
,283
10.42
,301
1.26
0.04
0.70
,400
-
-
-
,400
-
0.65
,800
||content||
,600
,944
1.25
,456
10.47
0.62
,840
0
,566
2.40
,190
5.46
0.60
,200
0
,378
6.72
,112
1.95
0.58
,560
0
,378
7.81
,734
1.68
0.05
0.70
,000
-
-
-
,400
-
0.65
,000
,000
,180
1.00
,220
13.09
0.62
,800
||content||
,200
,708
1.92
,812
6.83
0.60
,000
0
,472
5.38
,640
2.44
0.58
,200
0
,472
6.25
,168
2.09
0.06
0.70
,600
-
-
-
,400
-
0.65
,200
,400
,416
0.83
,984
15.71
0.62
,760
||content||
,440
,850
1.60
,434
8.20
0.60
,800
0
,566
4.48
,168
2.92
0.58
,840
0
,566
5.21
2
2.51
0.07
0.70
,200
-
-
-
,400
-
0.65
,400
,800
,652
0.71
,748
18.33
0.62
,720
||content||
,680
,991
1.37
,057
9.56
0.60
,600
||content||
,120
,661
3.84
(,304)
3.41
0.58
,480
||content||
,120
,661
4.46
(,965)
2.93
0.08
0.70
,800
-
-
-
,400
-
0.65
,600
,200
,888
0.63
,512
20.94
0.62
,680
||content||
,920
,133
1.20
(1)
10.93
0.60
,400
||content||
,280
,755
3.36
(,776)
3.90
0.58
,120
||content||
,280
,755
3.91
(,531)
3.35
0.09
0.70
,400
-
-
-
,400
-
0.65
,800
,600
,124
0.56
,276
23.56
0.62
,640
,160
,274
1.06
(,698)
12.29
0.60
,200
||content||
,440
,850
2.99
(,248)
4.38
0.58
,760
||content||
,440
,850
3.47
(,098)
3.77
C-9
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