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Abstract

Reciprocating compressors have high energy consumption due to friction between component parts. Linear compressors with fewer parts than reciprocating compressors are able to minimize friction and deliver energy efficient performance. This study examines the impact of changing frequencies in compressors used in household refrigerators on overall cooling capacity and COP. For this, two frequency settings of 56.5 Hz and 100 Hz were tested to predict changes in cooling capacity, compression work, and COP. Results from the numerical analysis showed that low frequency resulted in reduced cooling capacity and compression work but enhanced COP. Higher frequency resulted in lower COP but higher cooling capacity, allowing for higher output from the same volume.