OSM:model results don't vary during summer for commercial Building
OSM model of the commercial building I am working on gave me zone wise results which on comparison with actual data recorded gave huge gaps. I have added loads and weather conditions and was expecting the profiles to be similar with less than 20% gaps. However, my zone cooling energy are not varying from winter to summer for Orlando-Florida. I have attached one zone comparison here. Can someone help me out nailing the error in my model.
I did the same model on HAP and was able to get reasonable results. OSM gives me more flexibility so I move to OS. But now can't figure out where the issues is. The flatter curve is from OS model whereas the peak profile is from actual field data.
Update******
Don't see much variation from summer to winter. Also zone 2 is showing huge energy demand than the rest.
Maybe a silly question but what size is your system? And is your cooling design day actually in the summer?
I set the system to autosize with COP 3.3. The results you see is for the complete year. I actually did not find any option to check the design day settings, I haven't changed them anyway from default. The IDF editor design day have 7 object with summer as July 21st and Winter as Jan 21st.
Have you confirmed that thermostat setpoints are correct and that thermal zone temperatures are as expected.
I have the schedule set for 24 C between 5 am to 9 pm an all days. and same schedule is set to the cooling thermostat schedule under Thermal Zones. I see the hourly report showing a 24 C as the maximum 'Zone Air Temperature'. I saw I had changed the fuel to Natural gas, which I changed to electricity now. But now getting another profile that has more usage in winters than summers. (How can i share the screen shot in comment?)
@rkbest You can edit extra information into the question, including the screenshot.