Etude sur les fuites de frigorigènes des pompes à chaleur au Royaume Uni

Le Département Britannique de l'Energie et des Changements Climatiques a récemment publié une étude sur les fuites de frigorigènes des pompes à chaleur. (en anglais)
The UK Department of Energy and Climate Change in collaboration with Eunomia Research and Consulting Ltd and London South Bank University recently published data on refrigerant leakage from heat pump systems. The report highlights predicted heat pump utilization growth due to the UK Renewable Heat Incentive (RHI).

An investigation was undertaken based on F-Gas log books of 528 different heap pump systems showing annual leakage rates of around 3.8% for non-domestic applications and 3.5% for domestic applications.

The F-Gas logs analysis suggests that a very high proportion of charge loss is associated with catastrophic leakage. However, also highlighted was the overall poor quality of the logs.

Also, the report stated that undercharging systems of respectively 10% and 40% can reduce the COP heating mode by 3% and 45% and the COP cooling mode by 15% and 24%. A modelling of leakage forecast an overall increase in refrigerant loss by weight of 17% from 2013 to 2020 of CO2e.