Abstract
ABSTRACT:For a CO 2 one-stage twin rotary compressor, a T-shaped suction port was used to effectively supply the suction gas stream into two individual suction chambers of the twin cylinders. Suction gas pulsations were observed in the pressure sensor signals and these were simulated by using the acoustic modeling of Helmholz resonators in parallel. The module of acoustic modeling was combined to a computer simulation program for the compressor performance. Validation of the simulation program has been carried out for a bench model compressor in a compressor calorimeter. Cooling capacity and the compressor input power were reasonably well compared between the simulation and the calorimeter test. Particularly, good agreement on P-V diagram between the simulation and the test was obtained.Keywords:Rotary compressor(로타리 압축기), Cooling capacity(냉방능력), Compressor work (압축기일), Gas pulsation(가스 맥동) †Corresponding author Tel.: +82-32-770-8419; fax: +82-32-770-8423 E-mail address: kimhj@incheon.ac.kr
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