23 September 2011
When realizing a heat pump system, the key to get high performance is to
minimize exergy losses. In this paper the characteristics of today’s state of the art vaporcompression heat pump will be shown by analyzing two different examples. The first one is a
typical vapor-compression heat pump as it is quite common on the market. The other one a
vapor/single phase compression heat pump, realized by compressor and a turbine.
Furthermore another way of realizing a Joule compression cycle in a vapor zone will be
introduced, combining the advantages of both characteristics, which results in a system
promising higher COPs, more flexible usage, new temperature areas and working fluids
without increased global warming potential.