[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [EnergyPlus_Support] Water heater consumption (kWh)





that hotwater consumption rate in kwh per month fits for a 4 to 5 person house.

On Fri, 22 Feb 2019, 21:18 costa.civil@xxxxxxxxxxxx [EnergyPlus_Support], <EnergyPlus_Support@xxxxxxxxxxxxxxx> wrote:
 

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.
Thanks.




__._,_.___

Posted by: Jean Marais <jeannieboef@xxxxxxxxx>


EnergyPlus support is found at:
http://energyplus.helpserve.com or send a message to energyplus-support@xxxxxxxx

The EnergyPlus web site is found at:
http://www.energyplus.net/

The group web site is:
http://groups..yahoo.com/group/EnergyPlus_Support/

Attachments are currently allowed but be mindful that not everyone has a high speed connection.  Limit attachments to small files.

EnergyPlus Documentation is searchable.  Open EPlusMainMenu.pdf under the Documentation link and press the &quot;search&quot; button.




Visit Your Group
Yahoo! Groups
PrivacyUnsubscribeTerms of Use

__,_._,___