ETL 1110-1-181
12 Jan 98
Table C5. SIR Comparison for 200 Ton Chillers
running at an EFLH of 2000.
(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
,600
-
-
-
,400
-
0.65
,200
0
,236
5.00
,164
2.62
0.62
,960
0
,142
9.58
,322
1.37
0.60
,800
0
,094
26.88
,528
0.49
0.58
,640
0
,094
31.25
,434
0.42
0.03
0.70
,400
-
-
-
,400
-
0.65
,800
0
,854
3.33
,546
3.93
0.62
,440
0
,712
6.39
,134
2.05
0.60
,200
0
,142
17.92
,292
0.73
0.58
,960
0
,142
20.83
,150
0.63
0.04
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
0.05
0.70
,000
-
-
-
,400
-
0.65
,000
||content||
,000
,090
2.00
,310
6.55
0.62
,400
0
,854
3.83
,756
3.41
0.60
,000
0
,236
10.75
,820
1.22
0.58
,600
0
,236
12.50
,584
1.05
0.06
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
0.07
0.70
,600
-
-
-
,400
-
0.65
,200
||content||
,400
,326
1.43
,074
9.16
0.62
,360
0
,996
2.74
,378
4.78
0.60
,800
0
,330
7.68
,348
1.70
0.58
,240
0
,330
8.93
,018
1.47
0.08
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
0.09
0.70
,200
-
-
-
,400
-
0.65
,400
||content||
,800
,562
1.11
,838
11.78
0.62
,320
||content||
,080
,137
2.13
,001
6.15
0.60
,600
0
,425
5.97
,876
2.19
0.58
,880
0
,425
6.94
,451
1.88
C-7
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