Principles Of Refrigerant Circuit Optimization In Single Row Microchannel Condensers

TL;DRAbstract

Automotive HVAC systems manufacturers were the first to introduce microchannel condensers in the comfort air-conditioning market. HVAC&R original equipment manufacturers have followed their lead and recently started using microchannel condensers in residential and commercial cooling and heat pump applications. These applications began less than a decade back and their number has been increasing steadily. The main difference between microchannel condensers used for the automotive and residential / commercial applications is that the latter span a much wider range of coil face areas compared to the former. Considering this fact, there are relatively few well-documented studies in the public domain on the numerical modeling of two-phase heat transfer and pressure drop in microchannel condensers, especially in the size range of interest for residential / commercial climate control applications. More specifically, the principles behind the selection of the correct refrigerant circuit patter

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