Processing math: 100%
Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

Revision history [back]

click to hide/show revision 1
initial version

From the engineering reference...

Qtoair=Hfan+(HmotorHfan)fmotortoair

While not discussed in the fan section, I assume it's the same logic as pumps. Any shaft power is eventually realized as heat to the fluid due to friction losses. I'm not actually a fan of that because in the real world, you're not controlling to those losses because that heat would be added after any kind of discharge air controller.

click to hide/show revision 2
No.2 Revision

From the engineering reference...

Qtoair=Hfan+(HmotorHfan)fmotortoair

While not discussed in the fan section, I assume it's the same logic as pumps. Any shaft power is eventually realized as heat to the fluid due to friction losses. I'm not actually a fan fan of that because in the real world, you're not controlling to those losses because that heat would be added after any kind of discharge air controller.