Air Conditioning in a Cinema

[Abe]

I require some assistance working out the Unit selection for air conditioning in a cinema. I cannot use the normal formula because we have a room packed with patrons within an enclosed darkened space with no windows, etc


As an example:

Cinema one Size is 15 metres x 8 metres x 4.5 metres . Number of seats 186.

There are another 5 screens all of different sizes and number of seats. Is their a formula I could use to determine the heat load for each, my real problem is working out the respiration rates given the large number of people.

I dont want to oversize nor undersize. Any help would be appreciated


The building is an old one, pre world war two type, so has virtually no heating or ventilation installed. Any ventilation is rudimentary. Ceilings are high up.


Thank you