How add temperature from the engine and fan to external temp

[ecoalejo]

Hi
We’re simulation a thermal performance of a space with different ventilation supply conditions and one of them is a simple device which the engine and fan add 2°C to the external temperature, it means is a supply of air by specific fan which take the air directly from outside, but the manufacturer of this specific model of fan said us that it increase in 2°C the external air due to the heat produced by the engine, friction, etc. so we’d like to know: how could we simulated this effect of the air provision and the increasing of 2°C, we are simulating in apachesim in simplified way, no HVAC apache or systems, so what is the best way to simulate this? We though by supply external air +offset temperature : room conditions>air changes>auxiliary ventilation> external air +offset temperature> temperature offset= 2°C to simulate the 2°C . that could be right?, I’m not sure is thi way could be fine for a simple simulation
Thanks

[Megan]

This is addressed on the LinkedIn group, IES VE Users.

Yes, the proposed method would work fine... either the supply air or aux air offset.

[irag12]

I know it has been a while since this conversation but could you please explain what do you mean by the "dummy system"? how do I prevent the energy which is actually the recoverd heat to be calculated in the heat load? thanks a lot!