Browse > Article
http://dx.doi.org/10.6110/KJACR.2016.28.10.408

Experimental Study on the Performance of Heat Recovery Heat Pump System using R245fa Refrigerant  

Kim, Hyuntaek (Department of Mechanical Engineering, Graduate School of Korea University)
Kim, Yongchan (Department of Mechanical Engineering, Korea University)
Cha, Dongan (Thermal & Fluid System Group, Korea Institute of Industrial Technology)
Kwon, Ohkyung (Thermal & Fluid System Group, Korea Institute of Industrial Technology)
Publication Information
Korean Journal of Air-Conditioning and Refrigeration Engineering / v.28, no.10, 2016 , pp. 408-413 More about this Journal
Abstract
The objective of this study is to investigate the performance of a heat recovery heat pump dryer using a R245fa refrigerant experimentally. In this study, the main components of the heat pump dryer were an evaporator, a compressor, a condenser, and an expansion valve. As a result, when the amount of refrigerant varied from 15 kg to 16 kg, the hot air outlet temperature in the condenser and the heat transfer rate were almost kept constant. Therefore, the amount of refrigerant at 16 kg was considered to be a suitable amount in the heat pump. As the air inlet velocity varied from 0.5 m/s to 1.5 m/s, the highest temperature in the condenser could be obtained when the air inlet velocity was 0.5 m/s. The heat transfer rate, system (COP), and hot air outlet temperature were 5.6 kW, 3.4, and $102.5^{\circ}C$, respectively, when the bypass ratio and water temperature were 0% and $60^{\circ}C$.
Keywords
COP; Dryer; Heat pump; Heat recovery; Refrigerant;
Citations & Related Records
연도 인용수 순위
  • Reference
1 Bannister, P., Carrington, G, and Chen, G, 2002, Heat pump dehumidifier drying technology-status, potential and prospects, Proceedings, 7th IEA Heat Pump Conference, Beijing, pp. 219-230.
2 Jacobs., R., Cibis, D., and Laue, H. J., 2010, Status and outlook : industrial heat pumps, International Refrigeration and Air Conditioning Conference, p. 1081.
3 Chamoun, M., Rulliere, R., Haberschill, P., and Peureux, J., 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.   DOI
4 Cao, X. Q., Yang, W. W., Zhou, F., and He, Y. L., 2014, Performance analysis of different high-temperature heat pump systems for low-grade waste heat recovery, Applied Thermal Engineering, Vol. 71, No. 1, pp. 291-300.   DOI
5 Wu, X., Xing, Z., He, Z., Wang, X., and Chen, W., 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.   DOI
6 Yamankaradeniz, N., Sokmen, K. F., Kaynakli, O., and Pastakkaya, B., 2014, Performance analysis of a re-circulating heat pump dryer, Thermal Science, Vol. 20. No. 1, pp. 267-277.
7 Wongwises, S., Yoovidhaya, T., Supontana, P., and Kaensup, W., 1997, Performance of a heat pump dehumidifier dryer, presented at the ASME ASIA, pp. V001T13A005.
8 Minea, V., 2015, Overview of heat pump assisted drying systems, part 2 : data provided vs. results reported, Drying Technology, Vol. 33, No. 5, pp. 527-540.   DOI
9 Calm, J. M. and Hourahan, G. C., 2001, Refrigerant data summary, Engineered Systems, Vol. 18, No. 11, pp. 74-88.