Einstein refrigeration
Einstein refrigeration
(OP)
In a conventional refrigeration system theoretically the heat of compression is the energy required for compression.
When compressed gasses are expanded then energy is released and its temperature drops.
see attachment
Einstein's refrigeration system uses Ammonia vapour to drive and compress Butane vapour from the evaporator to the absorber/condenser. Vapour temperature leaving evaporator (in my example) is 10'C saturation for R600a (390kPa.) and NH3 is superheated Vapour at 10'C and 650kPa..
Absorber/condenser condition R600a at 40'C condensing is 1030kPa. NH3 at 10kPa.
Does the NH3 give up give up energy to R600a in the flow line and is there a simple calculation to prove the result?





RE: Einstein refrigeration
RE: Einstein refrigeration
My query is the principle of NH3 being used to compress R600a and the fact that as the NH3 expands (loses energy) while the R600a is compressed (gains energy). Both gases (I imagine must) enter the absorber/condenser at the same temperature.
Is the velocity flow rate paramount in this process?
Does the NH3 pressure need to be much higher than what I have indicated above?
RE: Einstein refrigeration