The following date refers to design of an air conditioning system of a theatre:
Total seating capacity – 600 persons
Sensible heat per person – 200 kJ/hr
Latent heat per person – 130 kJ/hr
Solar heat gain through glass, doors and walls 2,50,000 kJ/hr
Outside design condition – 40°C DBT, 27°C WBT
Inside design condition–24°C DBT, 50% RH
Apparatus dew point temperature of cooling oil – 4°C
50% of return air is recirculated and it is mixed with fresh air before entering the cooling coil. Calculate
(i) the bypass factor of the cooling coil.
(ii) the mass flow rate of supply air to the theatre, and.
(iii) the refrigeration capacity of the coil in tons of refrigeration.