ETL 1110-1-181
12 Jan 98
Table C12. SIR Comparison for 200 Ton Chillers
running at an EFLH of 3000.
(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
,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
0.03
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
0.04
0.70
,240
-
-
-
,400
-
0.65
,080
,160
,274
0.93
,126
14.14
0.62
,784
||content||
,296
,965
1.77
,461
7.38
0.60
,920
4
,310
4.98
,451
2.63
0.58
,056
4
,310
5.79
,141
2.26
0.05
0.70
,440
-
-
-
,400
-
0.65
,980
,460
,201
0.81
,199
16.10
0.62
,504
||content||
,476
,321
1.56
,178
8.40
0.60
,520
4
,881
4.37
,597
3.00
0.58
,536
4
,881
5.08
(
||content||
,283)
2.58
0.06
0.70
,640
-
-
-
,400
-
0.65
,880
,760
,128
0.72
,272
18.06
0.62
,224
||content||
,656
,677
1.39
,895
9.42
0.60
,120
||content||
,104
,451
3.89
(
||content||
,257)
3.36
0.58
,016
||content||
,104
,451
4.53
(,708)
2.89
0.07
0.70
,840
-
-
-
,400
-
0.65
,780
,060
,055
0.65
,345
20.03
0.62
,944
||content||
,836
,033
1.25
,611
10.45
0.60
,720
||content||
,224
,022
3.51
(,111)
3.73
0.58
,496
||content||
,224
,022
4.08
(,133)
3.20
0.08
0.70
,040
-
-
-
,400
-
0.65
,680
,360
,982
0.60
,418
21.99
0.62
,664
,016
,389
1.14
(,672)
11.47
0.60
,320
||content||
,344
,593
3.20
(,965)
4.09
0.58
,976
||content||
,344
,593
3.72
(,558)
3.52
0.09
0.70
,240
-
-
-
,400
-
0.65
,580
,660
,909
0.55
,491
23.95
0.62
,384
,196
,746
1.05
(,955)
12.50
0.60
,920
||content||
,464
,164
2.94
(,819)
4.46
0.58
,456
||content||
,464
,164
3.42
(,983)
3.83
C-14
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