Hi, I just checked very quickly your .bui file: try to increase the infiltration to at least 1 vol/h; extend the lights load to the entire floor; include dehumidification with a relative humidity of about 50% and calculate again. Good luck Giuseppe Corallo Italy Da: TRNSYS-users [mailto:trnsys-users-bounces@lists.onebuilding.org] Per conto di Hooman Azad via TRNSYS-users Dear Sir/Madam I’m trying to calculate the cooling load for a simple building located in Tehran, Iran. The dimensions are 20m*10m*2.5m, with the 20m long façades face due North-South, as you can see in the attached files. The Maximum cooling load is obtained to be about 17000kJ/hr or 1.34 USRT which is about 0.007 USTR per square meter. In Iran, HVAC engineers use about 0.03 USRT per square meter for Tehran’s cooling load as a rule of thumb, which is about 4 times the result obtained from TRNBuild. Please kindly help me with the issue, since TRNBuild is not used for cooling/heating load calculations in Iran and I’m trying to present it as a useful tool. Your assistance could be very decisive. Best Regards Hooman Azad Tehran Iran |