ETL 1110-1-181
12 Jan 98
Table C10. SIR Comparison for 200 Ton Chillers
running at an EFLH of 1000.
(Example 2)
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
,240
-
-
-
,400
-
0.65
,080
||content||
,160
,184
1.72
,216
7.59
0.62
,384
6
,111
3.30
,405
3.96
0.60
,920
4
,074
9.27
,631
1.41
0.58
,456
4
,074
10.78
,557
1.21
0.03
0.70
,640
-
-
-
,400
-
0.65
,380
||content||
,260
,493
1.59
,907
8.25
0.62
,624
6
,896
3.04
,311
4.30
0.60
,120
4
,597
8.53
,013
1.53
0.58
,616
4
,597
9.92
,416
1.32
0.04
0.70
,040
-
-
-
,400
-
0.65
,680
||content||
,360
,802
1.47
,598
8.90
0.62
,864
6
,681
2.82
,216
4.64
0.60
,320
4
,121
7.90
,395
1.66
0.58
,776
4
,121
9.19
,274
1.42
0.05
0.70
,440
-
-
-
,400
-
0.65
,980
||content||
,460
,111
1.37
,289
9.56
0.62
,104
6
,467
2.63
,122
4.99
0.60
,520
4
,645
7.36
,777
1.78
0.58
,936
4
,645
8.56
,133
1.53
0.06
0.70
,840
-
-
-
,400
-
0.65
,280
||content||
,560
,420
1.28
,980
10.21
0.62
,344
6
,252
2.46
,027
5.33
0.60
,720
4
,168
6.89
,159
1.90
0.58
,096
4
,168
8.01
,991
1.63
0.07
0.70
,240
-
-
-
,400
-
0.65
,580
||content||
,660
,729
1.20
,671
10.86
0.62
,584
6
,038
2.31
,933
5.67
0.60
,920
4
,692
6.48
,541
2.02
0.58
,256
4
,692
7.53
,849
1.74
0.08
0.70
,640
-
-
-
,400
-
0.65
,880
||content||
,760
,038
1.14
,362
11.52
0.62
,824
||content||
,056
,823
2.18
,839
6.01
0.60
,120
4
,215
6.11
,923
2.14
0.58
,416
4
,215
7.10
,708
1.84
0.09
0.70
,040
-
-
-
,400
-
0.65
,180
||content||
,860
,347
1.08
,053
12.17
0.62
,064
||content||
,116
,608
2.06
,744
6.35
0.60
,320
4
,739
5.78
,305
2.26
0.58
,576
4
,739
6.72
,566
1.95
C-12
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