Load does not reduce after eliminating internal gains
Posted: Tue Mar 07, 2017 3:08 am
6 story building cooling load resulted a reasonable thermal load. About 300 tons.
Then I started applying EE measures and nothing was happening. Then I went to the extreme to find out why. So I did the following:
Lighting set 0w/m2
Occupancy set to zero
Oustide air set to Zero
Wall Uvalue set to zero
Fenestration Uvalue set to zero
The thermal load only reduced 30% after doing all that.
Wierd thing is, on autosizing, the return air temperature is 90 F. I have no idea where the heat gain is coming from.
Then I started applying EE measures and nothing was happening. Then I went to the extreme to find out why. So I did the following:
Lighting set 0w/m2
Occupancy set to zero
Oustide air set to Zero
Wall Uvalue set to zero
Fenestration Uvalue set to zero
The thermal load only reduced 30% after doing all that.
Wierd thing is, on autosizing, the return air temperature is 90 F. I have no idea where the heat gain is coming from.