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GL2012 highlights: low-charge propane air-conditioning system using small section copper tubes
Propane air conditioner with smaller copper tubes and a smaller (and thus safer) refrigerant charge.
Propane (R290) is a potential drop-in refrigerant for existing R22 systems with zero ODP and hardly any GWP, but with potential fire risks. A team from the Institute of Refrigeration and Cryogenics at Shanghai Jiao Tong University developed a propane air conditioner with smaller copper tubes and a s...