Question on air flow in HVAC unit
Question on air flow in HVAC unit
(OP)
I have a problem figuring out air flow in a building we need to cool down.
We have an outside air temp of 40 deg. C and need an inside temp of 20 deg C.
The building has a total volume of 3500 m^3
The heat transfer from outside to inside is approximately 15 kW (poor insulated).
We know the cooling need is 37kW with an airshift of 0.5 x total volume / hour. But I don't know how much extra airflow or lower temp is needed to work against the 15 kW input through the walls.
Could anyone please help me.
Brgds. Jon
We have an outside air temp of 40 deg. C and need an inside temp of 20 deg C.
The building has a total volume of 3500 m^3
The heat transfer from outside to inside is approximately 15 kW (poor insulated).
We know the cooling need is 37kW with an airshift of 0.5 x total volume / hour. But I don't know how much extra airflow or lower temp is needed to work against the 15 kW input through the walls.
Could anyone please help me.
Brgds. Jon





RE: Question on air flow in HVAC unit
Then, you will need to select an air conditioner that has the capacity to overcome the sensible and latent heat loads that you have added.
Hope this helps. Others on this forum are much more experts in the field. Hope they will give you added advise.
regards,
RE: Question on air flow in HVAC unit
I don't know where you got the your numbers from but keep in mind other sources of heat to keep in mind are from people, lighting, equipment (ie computers) and solar thru windows.
I hope this helps answer your question.