Journal of the Institute of Convergence Signal Processing (융합신호처리학회논문지)

The Korea Institute of Convergence Signal Processing (한국융합신호처리학회)
권호 표지
DOI QR코드

DOI QR Code

Simulation for Performance Evaluation of Heat Pump Outdoor Unit in the Constant Temperature Chamber

항온챔버에서 히트펌프 실외기의 성능 평가를 위한 시뮬레이션

  • Jong-Ryeol Kim (Dept. of Refrigeration & Air-conditioning Eng., Tongmyong University)
  • 김종열 (동명대학교 냉동공조공학과)
  • Received : 2023.08.11
  • Accepted : 2023.08.31
  • Published : 2023.09.30
Download PDF
⟨ Previous Next ⟩

Abstract

A lot of research is being done to develop a high-efficiency heat pump to save energy. Among them, research to reduce or eliminate the phenomenon of frost occurring in the outdoor unit coil are being conducted at the same time. A constant temperature chamber that can be tested under the same conditions as natural conditions was constructed to conduct research that does not cause frost on the outdoor unit of the heat pump regardless of the season. The outdoor unit of the heat pump installed in the constant temperature chamber was simulated under the same natural conditions. As a result, it was confirmed that the mass flow rate of the refrigerant decreased as the outdoor temperature decreased, and the dryness of the refrigerant also increased linearly with the outdoor temperature.

에너지를 절약하기 위해 고효율 히트펌프를 개발하기 위한 많은 연구가 이루어지고 있다. 그 중, 실외기 코일에 발생하는 서리가 발생하는 현상을 줄이거나 없애기 위한 연구도 동시에 이루어지고 있다. 계절과 관계없이 히트펌프의 실외기에 서리가 발생하지 않는 연구를 진행할 수 있도록 자연 상태와 동일한 조건에서 실험할 수 있는 항온챔버를 구축하였다. 항온챔버 내에 설치된 히트펌프의 실외기에 자연 상태와 같은 조건으로 시뮬레이션하였으며, 그 결과 외기온도가 낮을수록 냉매의 질량유량은 감소하였으며, 냉매의 건도 역시 외기온도에 따라 선형적으로 증가함을 확인하였다.

Keywords

References

  1. C.D. Jeon, "Performance Improvement Technology on a Continuous Heating Heat Pump at Frost Condition", Korea Academy Industrial Cooperation Society, Vol.14 No.2, pp. 573~577, 2013(in Korean). https://doi.org/10.5762/KAIS.2013.14.2.573
  2. S.H. Kim, "Study on the Performance of Refrigerating System in a Refrigerator Truck with Frost Growth", Graduate School of Chosun Unversity, pp.1~76, 2013(in Korean).
  3. J.R. Kim, "Simulation of identify the frost formation of the heat pump outdoor unit", The Korean Society of Applied Science and Technology, Vol.36 No.4, pp.1410~1419, 2019(in Korean).
  4. J.R. Kim, "Analysis of flow characteristics in the experimental apparatus using a heat pump outdoor unit", 2019 Spring Conference on The Korean Society of Applied Science and Technology, p.151, 2019 (in Korean).
  5. J.R. Kim, "CFD of experimental apparatus for analyzing frost in heat pump outdoor unit under cold condition", The Society Of Air-Conditioning And Refrigerating Engineers Of Korea, pp.798-802, 2019(in Korean).
  6. K.S. Lee, S. Jhee, "Frosting and defrosting in heat exchangers", The Society Of Air-Conditioning And Refrigerating Engineers Of Korea, pp.421-422, 1998 (in Korean).
  7. C.G. Lee, H.C. Suh, H.C. Noh and K.S. Park, "A Numerical Study on the Flow behavior Characteristics of Disk Type Heat Exchanger", pp.617-618, 2011(in Korean).