Hi, I'm trying to simulate a stratified water heater for São Paulo-Brazil .epw and find out the consumption of the heater (kWh) for each month. I'm using a heater of 6000W capacity, with a patter of bath 40minutes per day (4l/min). I got the consumption from the Table Report and it is too high (The usual is maximum of 90kWh for a month). I converted J to kWh and got this:
WATER HEATER TOTAL DEMAND HEAT TRANSFER ENERGY J 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
The temperature of the tank outlet looks fine. I dont know if I'm using the wrong output object to obtain the consumption results or if there is a mistake in my .idf. I'm senting a link if somebody want to give me a little help here.
https://www.dropbox.com/sh/or7f0yk7p6rvau8/AAC0uxjUSV11OfoykNah6de3a?dl=0 Thanks!