Swegon: propane refrigerant for heat pumps and air conditioners

It is seven years since CIBSE Journal produced a CPD article specifically on the application of refrigerant R290 – propane – that, at the time, was likely seen by many as an outlier in the refrigerant marketplace. Over the intervening years, the relative benefits, challenges and opportunities of using such refrigerants – one of the ‘natural’ refrigerants – have moved on significantly. This CPD will highlight the continuing challenges, and consider the changes that appear to be ushering in the new era of propane-charged heat pumps and chillers.