Journal of Power System Engineering (동력기계공학회지)

The Korean Society for Power System Engineering (한국동력기계공학회)
권호 표지
DOI QR코드

DOI QR Code

Analysis and Verification of High Temperature Heat Pump Dryer using Waste Heat Recovery Type for R245fa Refrigerant

배기가스 배열을 활용한 R245fa 냉매용 고온 히트펌프 건조기의 해석 및 검증

  • 배경진 (한국생산기술연구원 열유체시스템그룹) ;
  • 차동안 (한국생산기술연구원 열유체시스템그룹) ;
  • 권오경 (한국생산기술연구원 열유체시스템그룹)
  • Received : 2016.02.25
  • Accepted : 2016.04.04
  • Published : 2016.04.30
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, the performance characteristics of a high temperature heat pump dryer that is able to raise the air temperature up to $80^{\circ}C$ by using waste heat as heat source were investigated numerically. The main components of the heat pump dryer were modeling as a compressor, condenser, evaporator and expansion device, and R245fa was selected as refrigerant. Experiments were also conducted to validate the numerical data. As a result, when the evaporator air inlet temperature increased from $50^{\circ}C$ to $65^{\circ}C$, the numerical results of the hot air temperature at outlet and heat pump COP were about 8~11% and 5~8% higher than that of experimental ones, respectively.

Keywords

References

  1. S. Prasertsan, P. Saen-Saby, G. Prateepchaikul and P. Ngamsritrakul, 1996, "Effects of Product Drying Rate and Ambient Condition on the Operating Modes of Heat Pump Dryer", Proc. of 10th International Drying Symposium, Vol. A, pp. 529-534.
  2. K. J. Bae, D. A. Cha and O. K. Kwon, 2014, "Performance Characteristic of Large Diameter Oval Finned-Tube Heat Exchanger for Dryer", Journal of the Korea Society for Power System Engineering, Vol. 18, No. 5, pp. 22-27. https://doi.org/10.9726/KSPSE.2014.18.5.022
  3. M. Chamoun, R. Rulliere, P. Haberschill and J. L. Peureux, 2014, "Experimental and Numerical Investigations of a New High Temperature Heat Pump for Industrial Heat Recovery using Water as Refrigerant", International Journal of Refrigeration, Vol. 44, pp. 177-188. https://doi.org/10.1016/j.ijrefrig.2014.04.019
  4. X. Q. Cao, W. W. Yang, F. Zhou and Y. L. He, 2014, "Performance Analysis of Different High-temperature Heat Pump Systems for Low-grade Waste Heat Recovery", Applied Thermal Engineering, Vol. 71, pp. 291-300. https://doi.org/10.1016/j.applthermaleng.2014.06.049
  5. X. Wu, Z. Xing, Z. He, X. Wang and W. Chen, 2016, "Performance evaluation of a capacity-regulated high temperature heat pump for waste heat recovery in dyeing industry", Applied Thermal Engineering, Vol. 93, pp. 1193-1201. https://doi.org/10.1016/j.applthermaleng.2015.10.075
  6. V. Gnielinski, 1976, "New Equation for Heat and Mass Transfer in Turbulent Pipe and Channel Flow", International Chemical Engineering, Vol. 16, No. 2, pp. 359-368.
  7. F. W. Dittus and L. M. K. Boelter, 1930, "Heat Transfer in Automobile Radiations of the Tubular Type", University of California Publications in Engineering, Vol. 2, pp. 443-461.
  8. A. Cavallini, L. Doretti, N. Klammsteiner, G. A. Longo and L. Rossetto, 1995, "Condensation of New Refrigerants inside Smooth and Enhanced Tubes", 19th International Congress of Refrigeration, pp. 105-114.
  9. M. M. Shah, 1976, "A New Correlation for Heat Transfer during Boiling Flow through Pipes", ASHRAE Trans., Vol. 82. pp. 66-86.
  10. C. C. Wang, W. S. Lee and W. J. Sheu, 2001, "A Comparative Study of Compact Enhanced Fin-and-tube Heat Exchanger", Internation Journal of Heat and Mass Transfer, Vol. 44, pp. 3565-3573. https://doi.org/10.1016/S0017-9310(01)00011-4