Browse > Article
http://dx.doi.org/10.14775/ksmpe.2021.20.06.070

Improvement of Compressor-Cooling Efficiency Based on Ribs  

Hwang, Il Sun (Sustainable Eco-friendly Energy Center, Kongju National University)
Lee, Young Lim (Dept. of Mech. and Auto. Eng., Kongju National University)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.20, no.6, 2021 , pp. 70-75 More about this Journal
Abstract
Recently, several efforts have been made to improve the thermal efficiency of a refrigerant compressor. In this study, we attempted to improve energy efficiency ratio (EER) performance by reducing the superheat of the linear compressor. To this end, heat generated inside the compressor must be effectively dissipated. Therefore, heat dissipation was improved by processing ribs in the gap-flow region generated owing to the vibration of the compressor body. The results showed that the convective heat transfer coefficient becomes significantly high when ribs are used, increasing the heat dissipation rate. This helps improve EER by reducing the superheat of the compressor.
Keywords
Linear Compressor; Compressor Superheat; Ribs; Convective Heat Transfer Coefficient;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Choi, Y, S., Lee, J, H., Jeong, W, B., Kim, I., G., "Dynamic behavior of valve system in linear compressor based on fluid-structure interaction", Journal of Mechanical Science and Technology, Vol. 24, No. 14, pp. 1371~1377, 2010.   DOI
2 Hwang, I. S., Park, S. J., Oh, W. S., and Lee, Y. L., "Linear compressor discharge valve behavior using a rigid body valve model and a FSI valve model," International Journal of refrigeration, Vol. 82, pp. 509-519, 2017.   DOI
3 Bukac, H., "Understanding valve Dynamics", Proceedings international compressor engineering conference, Purdue University, 2002.
4 Choi, S., Han, U., Cho, H., and Lee, H., "Recent advances in household refrigerator cycle technologies", Applied Thermal Engineering, Vol. 132, pp. 560-574, 2018.   DOI
5 Porkhial, S., and Khastoo, B., and Modarres, M. R., "Transient characteristic of reciprocating compressor in household refrigerators", Applied thermal engineering, Vol. 26, No. 14, pp. 1725-1729, 2002.   DOI
6 Hou, X., Gu, Z., Gao, X., Feng, S., and Li, Y., "Analysis of efficiency and power facor of reciprocating compressor unit under variable frequency and variable conditions," Proceedings international compressor engineering conference, Purdue University, 2008.
7 Kim, H., Roh, C. K., and Kim, J. K., "An experimental and numerical study on dynamic characteristic of linear compressor in refrigeration system", International journal of refrigeration, Vol. 31, pp. 1536-1543, 2009.
8 Park, M., Lee, J., Kim, H., Ahn, Y., "Experimental and numerical study of heat transfer characteristics using the heat balance in a linear compressor", International Journal of Refrigeration, Vol. 74, pp. 550~559, 2017.   DOI
9 Ansys Fluent version 15, Ansys Inc.
10 Silva, L. R., and Deschamps, C. J., "Modeling of gas leakage through compressor valves", International Journal of Refrigeration, Vol. 53, pp. 195-205, 2014.   DOI
11 Oliverira, M. J., "Modeling thermal compressor reciprocal linear operating without oil lube", Federal de santa catarina university, pp, 101-111, 2014.
12 Hwang, I. S., and Lee, Y. L., "CFD analysis of transient flows in a linear compressor using a 1D-CFD coupled model," International journal of refrigeration, Vol. 91, pp. 20-27, 2018.   DOI