Cooled Process Equipment

[bbrannon4]

Does anyone have any clever ways for modeling process equipment that has it's own cooling source, such and medical imaging equipment, that captures both the cooling energy and electrical energy? The way I'm thinking would be similar to how I would model refrigeration: create a small zone inside of the actual room, make the interior walls really insulative, then put a process load in it and cool it with it's own simple DX single zone system.

Any better ideas?

[farahghanem]

I am not sure I understood this correctly. Your equipment is being used to cool the zone or just the actual device? If it is the later, then you needn't do what you suggested and just input the total power consumption (electrical and cooling) for the equipment. Otherwise, if you follow your method the cooling consumption will account as cooling energy for the conditioning the building and would not be understood as a device cooling itself only.

edit: on second thought, i think I understand now why you want to do this, basically you want to eliminate the heat gain that you would get from that process equipment. correct?

In this case, if you go to the BTM and edit the process load there, I believe you can set it so that it only contributes as an electric consumption load with no heat gain effect.