Determine (i) Supply air flow rate (ii) Outside air sensible heat (iii) Outside air latent heat

Question

The following data relates to an-conditioned space:

Outdoor condition  =  38⁰C DBT/50% RH

Room Condition  =  24⁰C DBT/50% RH

Sensible heat load  =  24 kW

Latent heat load  =  6 kW

Bypass factor of he cooing coil = 0.16

If the ventilation requirement is such that on mass flow rate basis 20% fresh air is introduced and 80% supply air is re-circulated, determine

(i) Supply air flow rate

(ii) Outside air sensible heat

(iii) Outside air latent heat

(iv) Grand total heat

(v) Effective room sensible heat factor.