Hi.

I'm new here it's great to have found somewhere to ask my questions.

I have a friend who is conducting research into making a climate control system for a house that uses the heat of the sun to circulate ammonia in a non-electric refrigeration system.

He has seen the kero/electric/gas hybrid systems that some car fridges employ and wants to know about the technologies suitability on a larger scale to cool a building using only sun light/latent heat as an energy source.

Does anybody know what kind of temp input would be required to make such a system work? Or perhaps the volume of refrigerant used. Obviously I'm after the mathematics of the principles in place. The formulas for working out the charge, heat input to pressure relationship and also the cooling capacity at said charge and input.

Thanks

GeeeAus
In Oz