HEAT LOAD DUE TO FRESH AIR
HEAT LOAD DUE TO FRESH AIR INSERTION Kilocalorie (IT)/hour [kcal/h] Kilowatt [kW] 1 kcal/h 0.001163 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 m 3 /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 m 3 /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 m 3 /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