BTU estimation for an AC

[MoldMaker]

Does anybody have a simple way of calculating the BTU required of an AC required in a small room and also the factory shopfloor?

 

[Sukisa]

Hi MM, BTU calculations is depends mainly on the ambient air temperature, humidity(water vapour percentage in the air), number of people etc. For an ambient air temperature 46 deg.C and RH 30% as a thumb rule 12000 BTU/15 sq.m of floor area (assuming a room height is 3-4m)
Hope this would help you!!!
Regards