Development of capacity modulation compressor based on a two stage rotary compressor - part I: Modeling and simulation of compressor performance

Title
Development of capacity modulation compressor based on a two stage rotary compressor - part I: Modeling and simulation of compressor performance
Author(s)
심재술김경천[김경천]이승준[이승준]
Keywords
DESIGN OPTIMIZATION; REFRIGERATORS
Issue Date
201506
Publisher
ELSEVIER SCI LTD
Citation
INTERNATIONAL JOURNAL OF REFRIGERATION-REVUE INTERNATIONALE DU FROID, v.54, pp.22 - 37
Abstract
Two-stage rotary compressors are gaining popularity because of their ability to reduce operating and energy costs over the entire compressor life cycle. In this work, a capacity modulation compressor based on a two-stage rotary compressor (CMCTR) is developed to improve the performance of the rotary compressor system. The working principle of the CMCTR is presented and the cycle efficiency of the compressor through two-stage compression is numerically investigated. The CMCTR model considers mass and energy balance for a control volume, the internal leakage condition for all leakage paths, the discharge valve motion, and the force and moment balance. For simulation results, the motor efficiency is estimated with respect to shaft power and the pressure during an entire cycle is obtained with respect to the compression volume for saving mode and power mode. The optimum efficiency of the CMCTR is obtained for the modulation for these modes. (C) 2015 Elsevier Ltd and IIR. All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/31955http://dx.doi.org/10.1016/j.ijrefrig.2015.02.007
ISSN
0140-7007
Appears in Collections:
공과대학 > 기계공학부 > Articles
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