설비공학논문집 (Korean Journal of Air-Conditioning and Refrigeration Engineering)

  • 제18권11호
  • /
  • Pages.881-887
  • /
  • 2006
  • /
  • 1229-6422(pISSN)
  • /
  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지

R22를 적용한 전자팽창밸브의 냉매유량 특성 및 유량예측 모델링

Mass Flow Characteristics and Empirical Modeling of R22 Flowing through Electronic Expansion Valves

  • 박차식 (고려대학교 기계공학과 대학원) ;
  • 이선일 (고려대학교 기계공학과 대학원) ;
  • 김용찬 (고려대학교 기계공학과) ;
  • 이영수 (한국에너지기술연구원)
  • Park, Cha-Sik (Graduate School of Mechanical Engineering, Korea University) ;
  • Lee, Sun-Il (Graduate School of Mechanical Engineering, Korea University) ;
  • Kim, Yong-Chan (Department of Mechanical Engineering, Korea University) ;
  • Lee, Young-Soo (Korea Institute of Energy Research)
  • 발행 : 2006.11.10
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초록

The objective of this study are to analyze the flow characteristics of R22 flowing through EEVs and to develop an empirical correlation to predict the refrigerant flow rate. The mass flow rates of EEVs with different geometries were measured at various condensing temperatures, subcoolings, and EEV openings. Based on the experimental data, an empirical correlation for mass flow predictions in EEVs was developed by modifying the orifice equation. The correlation showed good agreement with the measured data for R22 with average and standard deviations of 1.4% and 6.1%, respectively. Approximately 90% of the measured data were within ${\pm}10%$ of the predictions.

키워드

참고문헌

  1. Kuehl, S.J. and Goldschmidt, V. W., 1991, Modeling of steady flow of R-22 through capillary tubes, ASHRAE Trans., Vol. 97, No. 1, pp. 139-148
  2. Dirik, E., Inan, C. and Tanes, M. Y, 1994, Numerical and experimental studies on adiabatic and non-adiabatic capillary tubes with HFC-l34a, Proceedings of IIR-Purdue Refrigeration Conference, West Lafayette, U.S.A
  3. Wolf, D. A., Bittle,. R. R. . and Pate, M. B., 1995, Adiabatic capillary tube performance with alternative refrigerants, ASHRAE Final Report No. RP-762
  4. Melo, C., Ferreira, R. T. S., Neto, c. B., Gon-calves, J. M. and Mezavila, M. M., 1999, An experimental analysis of adiabatic capillary tubes, Applied Thermal Eng., Vol. 19, pp. 669-694 https://doi.org/10.1016/S1359-4311(98)00062-3
  5. Kim, Y., Choi, J. M. and Chung, J. T., 2003, A generalized correlation for refrigerant mass flow rate through adiabatic capillary tubes, Int. Journal of Refrigeration, Vol. 26, No.7, pp. 881-888 https://doi.org/10.1016/S0140-7007(03)00079-3
  6. Krakow, K. I. and Lin, S., 1988, Refrigerant flow through orifices, ASHRAE Trans., Vol. 94, Part 1, pp.484-506
  7. Kim, Y. and O/Neal, D. L., 1994, Two-phase flow of R-22 through short tube orifices, ASHRAE Trans, Vol. 100, Part 1, pp.323-334
  8. Mei, V. C., 1982, Short tube refrigerant restrictors. ASHRAE Trans., Vol. 88, Part 2, pp. 157-168
  9. Aaron, A A and Domanski, P. A, 1990, Experimentation analysis and correlation of refrigerant-22 flow through short tube restrictors, ASHRAE Transactions, Vol. 96, Part 1, pp.729-742
  10. Kim, Y. and O'Neal, D. L., 1993, An experimental study of two-phase flow of HFC134a through short tube orifices, Heat Pump and Refrigeration Systems Design, Analysis and Applications, ASME, AES-Vol. 29, pp. 484-506
  11. Gerhart, P. M., 1992, Fundamentals of fluid mechanics, Addison Wesley Publishing Company, pp.526-527
  12. McLinden, M., Klein, S. A, Lemmon, E. W. and Peski, A P., NIST thermodynamic and transport properties of refrigerant and refrigerant mixture (REFPROP), Version 7.0