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Energy Savings % Indoor Vs. Window R/F |
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A/C is Off |
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Excluding Summer
Energy Savings |
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Definition of
Columns in the table: |
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B
= Average Outdoor
temperature (temperature of Window R/F's Condenser). |
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C
= Average Indoor
temperature, 70 F or higher (temperature of Indoor R/F's Condenser). |
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D
= Average temperature inside the R/F (set constant at 29 F). |
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Ti = C - D
= Temperature difference between the Indoor R/F's evaporator and
condenser. |
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Tw = B - D
= Temperature difference between the Window R/F's evaporator and
condenser. |
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G = Energy Savings % assuming that both R/Fs have the same COP
(efficiency). |
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G
= (Ti - Tw) / Ti
Unlike Column H, it does not include the higher efficiency of window R/F. |
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H = Energy Savings % taking into account the higher COP
(efficiency) of the window R/F. |
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H = 1 - (Tw x Tw) /
(Ti x Ti) Unlike
column G, it includes
the higher efficiency of window R/F. |
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Fahrenheit |
B |
C |
D |
Ti |
Tw |
G |
H |
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JAN |
43 |
70 |
29 |
41 |
14 |
66% |
88% |
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FEB |
43 |
70 |
29 |
41 |
14 |
66% |
88% |
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MAR |
46 |
70 |
29 |
41 |
17 |
59% |
83% |
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APR |
54 |
70 |
29 |
41 |
25 |
39% |
63% |
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MAY |
63 |
70 |
29 |
41 |
34 |
17% |
31% |
|
JUN |
71 |
71 |
29 |
42 |
42 |
0% |
0% |
|
JUL |
77 |
77 |
29 |
48 |
48 |
0% |
0% |
|
AUG |
76 |
76 |
29 |
47 |
47 |
0% |
0% |
|
SEP |
70 |
70 |
29 |
41 |
41 |
0% |
0% |
|
OCT |
61 |
70 |
29 |
41 |
32 |
22% |
39% |
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NOV |
52 |
70 |
29 |
41 |
23 |
44% |
69% |
|
DEC |
46 |
70 |
29 |
41 |
17 |
59% |
83% |
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Average Energy Savings % |
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31% |
45% |
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Exact same as above
except in Celsius |
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Celsius |
B |
C |
D |
Ti |
Tw |
G |
H |
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JAN |
6 |
21 |
-2 |
23 |
8 |
66% |
88% |
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FEB |
6 |
21 |
-2 |
23 |
8 |
66% |
88% |
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MAR |
8 |
21 |
-2 |
23 |
9 |
59% |
83% |
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APR |
12 |
21 |
-2 |
23 |
14 |
39% |
63% |
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MAY |
17 |
21 |
-2 |
23 |
19 |
17% |
31% |
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JUN |
22 |
22 |
-2 |
23 |
23 |
0% |
0% |
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JUL |
25 |
25 |
-2 |
27 |
27 |
0% |
0% |
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AUG |
24 |
24 |
-2 |
26 |
26 |
0% |
0% |
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SEP |
21 |
21 |
-2 |
23 |
23 |
0% |
0% |
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OCT |
16 |
21 |
-2 |
23 |
18 |
22% |
39% |
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NOV |
11 |
21 |
-2 |
23 |
13 |
44% |
69% |
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DEC |
8 |
21 |
-2 |
23 |
9 |
59% |
83% |
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Average Energy Savings % |
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31% |
45% |
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Exact same as above
except in Kelvin |
|
Kelvin |
B |
C |
D |
Ti |
Tw |
G |
H |
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JAN |
279 |
294 |
271 |
23 |
8 |
66% |
88% |
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FEB |
279 |
294 |
271 |
23 |
8 |
66% |
88% |
|
MAR |
281 |
294 |
271 |
23 |
9 |
59% |
83% |
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APR |
285 |
294 |
271 |
23 |
14 |
39% |
63% |
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MAY |
290 |
294 |
271 |
23 |
19 |
17% |
31% |
|
JUN |
295 |
295 |
271 |
23 |
23 |
0% |
0% |
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JUL |
298 |
298 |
271 |
27 |
27 |
0% |
0% |
|
AUG |
297 |
297 |
271 |
26 |
26 |
0% |
0% |
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SEP |
294 |
294 |
271 |
23 |
23 |
0% |
0% |
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OCT |
289 |
294 |
271 |
23 |
18 |
22% |
39% |
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NOV |
284 |
294 |
271 |
23 |
13 |
44% |
69% |
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DEC |
281 |
294 |
271 |
23 |
9 |
59% |
83% |
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Average Energy Savings % |
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31% |
45% |
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Back |
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Windowrefrigerator.com |
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PATENT PENDING |
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