What are the working fluid used in the vapor absorption cooling process and working temperature required?

Answer 1

1. Working fluid: Ammonia, Working temp.: Around minus 2 to plus 15 deg. C.
2.Working fluid: Freon, Working temp.: Around minus 40 to plus 15 deg. C.
3. Working fluid: MEG, Working temp.: Around minus 10 to plus 10 deg. C.

Answer 2

Typically the vapor absorption type cooling refrigerator runs with ammonia, hydrogen and water as fluids in the system. The working temperature externally bust be less than around 38 deg C or the ammonia will not liquify. Ammonia vaporises at about -32 deg C under normal pressures. The ammonia cycl fridge can cool effectivly to -10 deg C.