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[EnergyPlus_Support] Water heater consumption (kWh)
Hi,
I'm trying to simulate a stratified water heater for São Paulo - Brazil .epw, with a heater capacity of 6000W, and 40 minutes of consumption for bath (4l/min). I've found in the table the consumption of energy for month:
|
WATER HEATER TOTAL DEMAND HEAT
TRANSFER ENERGY [J] |
(kWh) |
WATER HEATER HEAT LOSS ENERGY [J] |
(kWh) |
| January |
482239000.00 |
133.96 |
-79534413.60 |
-22.09 |
| February |
443646000.00 |
123.24 |
-73541655.60 |
-20.43 |
| March |
538367000.00 |
149.55 |
-85841829.00 |
-23.84 |
| April |
550458000.00 |
152.91 |
-94792808.10 |
-26.33 |
| May |
600509000.00 |
166.81 |
-105807662.30 |
-29.39 |
| June |
580653000.00 |
161.29 |
-102193879.20 |
-28.39 |
| July |
612884000.00 |
170.25 |
-108955406.70 |
-30.27 |
| August |
591676000.00 |
164.35 |
-103599575.70 |
-28.78 |
| September |
556954000.00 |
154.71 |
-96280359.00 |
-26.74 |
| October |
578996000.00 |
160.83 |
-99992914.30 |
-27.78 |
| November |
543994000.00 |
151.11 |
-93088050.10 |
-25.86 |
| December |
540370000.00 |
150.10 |
-89565130.60 |
-24.88 |
I convert J to kWh and subtracted the Total Demand for Loss but this consumption of the heater element is too high! I dont know if I'm taking the wrong outputs or if there are some mistake in the .idf. The temperatures are ok. Does anybody know about it? I attched the files.
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Posted by: costa.civil@xxxxxxxxxxxx
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Attachment Converted: "D:\Eudora\Attach\Texterna SP.csv"
Attachment Converted: "D:\Eudora\Attach\AF SP.csv"
Attachment Converted: "D:\Eudora\Attach\Eletrict_StratifiedHorizontalTank.idf"
Attachment Converted: "D:\Eudora\Attach\Temperatura do ático SP.csv"