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The design conditions for an air conditioned hall is

Outside condition: 38°C DBT and 50% RH

Inside condition: 24˚C DBT and 50% RH

Sensible heat gain: 26 KW

Latent heat gain: 8 KW

By-pass factor of the cooling Coil: 0.16.

The ventilation requirement is such that on mass flow rate basis 20 % fresh air is introduced and 80 % of supply air is recirculated, determine.

i. Supply air flow rate

ii. Outside air sensible heat

iii. Outside air latent heat

iv. Grand total heat; and

v. ERSHF

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