State of the art in R&D of aluminium mini- and micro-channel heat exchangers

摘要

This paper gives an overview of the state of the art in R&D of aluminium mini- and micro-channel heat exchangers in stationary refrigeration and air-conditioning systems. Developments concentrate on enhanced refrigerant (inside) and air side heat transfer, improved refrigerant distribution and reduced refrigerant charge. Benefits employing minichannel heat exchangers are reduced global warming impact of the refrigeration and air-conditioning system due to increased energy efficiency and reduced refrigerant charge, as well as improved recyclability, reduced size and weight as well as cost of the heat exchanger.