Over the weekend I had a chance to tour a large central chiller plant at a
university. They had several electrically driven chillers with centrifugal
compressors. It was all very high tech with variable speed drive. I don't
know what ultimately went to motors but a lot of gear was labeled 4160
H134a was the refrigerant. (I was somehow expecting something else with
Curious if anyone has ever done central cooling whether for multiple
buildings or even just one building where they send out liquid refrigerant
and have a suction line as the return. I suppose the cost of refrigerant
would make this costly especially if there is a leak but it would give the
benefit of the liquid to gas state change (think steam heat vs. hot water)
so less to pump around and maybe less wasted cooling along the way. Could
such a thing even work?
PS: I knew they operated compressor-type chillers before I went there but
still would have been more interested in absorption chillers as making cold
with heat is, well, cool.