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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
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In-Situ Performance Test of a Wet Surface Finned-Tube Evaporator of an Air Source Heat Pump

공랭식 열펌프의 습표면 핀-관 증발기의 현장 성능 시험

  • 백영진 (한국과학기술연구원 열유동제어연구센터) ;
  • 장영수 (한국과학기술연구원 열유동제어연구센터) ;
  • 김영일 (한국과학기술연구원 열유동제어연구센터)
  • Published : 2001.09.01
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Abstract

In this study, in-situ performance test of a wet surface finned-tube evaporator of an air source heat pump which has a rating capacity of 20RT is carried out. Since test conditions, such as indoor and outdoor air conditions cannot be controlled to satisfy the standard test conditions, experiments are done with the inlet air conditions as they exist, From the experimental data, air side heat and mass transfer coefficients were calculated by the well known heat and mass transfer analogy and tube-by-tube method. since current procedure underpredicted the experimental sensible heat factor(SHF), a proper empirical parameter was introduced to predict the experimental data with satisfactory results. This study provides the method of evaluating the heat and mass transfer coefficients of a wet surface finned-tube evaporator of which in-situ performance test in necessary.

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References

  1. Transactions of the Korean Society of Mechanical Engineers v.13 no.5 Modeling of fin-tube heat exchanger Park, H. Y.;Park, D. K.;Lee, K. S.
  2. Transactions of the Korean Society of Mechanical Engineers B v.20 no.12 Heat transfer characteristics of fin and tube heat exchangers with various interruptd surfaces for air conditioning application Yun,J.Y.;Lee,K.S.
  3. Improving heat pump performance via compressor capacity control-analysis and test Hiller, C. C.;Glicksman, L. R.
  4. ORNL/CON-80/R1 The Oak Ridge heat pump models: I. A steady-state computer design model for air-to-air heat pumps Fischer,S.K.;Rice,C.K.
  5. NISTIR 89-4133, U. S. Dept. of Commerce EVSIM-An evaporator simulation model accounting for refrigerant and one dimensional air distribution Domanski, P. A.
  6. Air-Conditioning and Refrigeration Engineering v.25 no.2 The air side heat transfer coefficient on the wetted surface of fin and tube heat exchanger Han,C.S.;Kim,K.W.
  7. Heating, ventilating, and air conditioning: analysis and design(4th ed.) McQuiston, F. C.;Parker, J. D.
  8. Korean J. of Air-Conditioning and Refrigeration Engineering v.9 no.2 Wet surface performance test of fin-tube heat exchangers with slitwavy fin Kim, N. H.;Kim, J. S.;Cho, J. P.;Yun, J. H.;Peck, J. H.;Lee, S. G.;Nam, S. B.;Kwon, H. J.
  9. The Korean Society of Mechanical Engineers Symposium Series: Thermal and Fluid Engineering Section Modeling of cross-flow fin-tube evaporator Yoon,B.;Yoo,K.C.;Park,H.Y.;Kim,Y.S.
  10. Korean Journal of Air-Conditioning and Refrigeration Engineering v.11 no.4 Air-conditioner cycle simulation using tube-by-tube method Yoon, B.;Park, H. Y.;Yoo, K. C.;Kim, Y. C.
  11. Trans. ASME J. Heat Transfer A Comparison of predicted and measured friction factors for turbulent flow through rectangular ducts Hartnett,J.P.;Koh,J.C.Y.;Mccomas,S.T.
  12. T.A.B. Standard for HVAC applications SEREK
  13. Trans. ASME J. Heat Transfer v.112 A general correlation for saturated two-phase boiling heat transfer inside horizontal and vertical tubes Kandlikar,S.G.
  14. International Chemical Engineering v.16 no.2 New equations for heat and mass transfer in turbulent pipe and channel flow Gnielinski,V.
  15. Experimental Thermal and Fluid Science v.2 Experimental investigation of thermal conductance of finned tube contacts Sheffield, J. W.;Wood, R. A.;Sauer, Jr.;H. J.
  16. Journal of the ASRE, Refrigerating Engineering v.4 Heat transfer calculations for extended surface Schmidt, T. E.
  17. Thermal environmental engineering Threlkeld, J. L.
  18. The Society of Air-Conditioning and Refrigerating Engineers of Korea Symposium Series: Refrigeration Section The optimum design of heat pump system with refrigerant distributor Hwang, Y. J.
  19. The Society of Air-Conditioning and Refrigerating Engineers of Korea Symposium Series: Refrigeration Section The optimum design of heat pump system with refrigerant distributor Hwang,Y.J.