A mathematical model of critical releasable charge for R290 indoor leakage of split-type household air conditioners

Performance of hydrocarbon refrigerants in a refrigerator with liquid line magnet and CNT nano-lubricant

“…The flammability concerns of these hydrocarbon refrigerants, especially R600a, R290, and LPG, can be controlled economically using ultra-low mass charges. The flammability limits of hydrocarbon refrigerants are directly related to their mass charges [ 4 , 5 ]. However, deterioration of performance efficiency is a common problem in refrigerators at charges lower than their optimum requirement [ 2 ].…”