HEAT LOAD DUE TO FRESH AIR

HEAT LOAD DUE TO FRESH AIR INSERTION

Kilocalorie (IT)/hour [kcal/h]Kilowatt [kW]
1 kcal/h0.001163 kW

 Sensible Heat

Q(s)=0.29 x R x Δt where:

Q(s) is the sensible heat load in kcal/h.

R is the fresh air rate in m3/h.

Δt is the difference in outdoor and indoor temperature in °C.

Latent Heat

Q(L)=720 x R x ΔH where:

Q(L) is the Latent heat load in kcal/h.

R is the fresh air rate in m3/h.

ΔH is the absolute difference in outdoor and indoor humidity in kg/kg.

A typical fresh air flow required per person is about 20 to 25 m3/h.


Here is the example.

CFM= 34 CFM


step 4:


step 4:

https://tranecds.custhelp.com/app/answers/detail/a_id/72/~/how-is-the-ventilation-load-calculated%3F




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