HFO LEAK DETECTION TECHNOLOGIES AND STRATEGIES TO REDUCE REFRIGERANT LEAKAGE

摘要

HFO refrigerant use is increasing within the refrigeration industry, driven by the required GWPrnreductions stemming from regulations including the European F-Gas standard and the US EPA’s CAArnSection 608 and SNAP programme.rnAs many HFOs have A2L mildly flammable classification, the perceived risks of leaking refrigerantrnare higher. This paper looks at the leak detection technologies available and in practical use in thernindustry, the pros and cons of each, associated typical Minimum Detectable Levels achieved withrndifferent technologies mapped against gas leak diffusion modelling, and effective application to HFOrndetection to catch leaks early and ensure safety in line with standards such as EN378:2016 andrnASHRAE-15.rnThe paper then reviews the opportunities for integrating leak detection with data reporting of leaks, leakrnrepairs and refrigerant use to deliver effective refrigerant management strategy for leak prevention andrnminimisation, enhancing the safe, clean, efficient and effective use of HFO refrigerants.