Advanced SearchSearch Tips
An Experimental Study on the Heat Transfer Performance of an Air-Source Heat Pump Using a PCM Unit for Continuous Heating
facebook(new window)  Pirnt(new window) E-mail(new window) Excel Download
 Title & Authors
An Experimental Study on the Heat Transfer Performance of an Air-Source Heat Pump Using a PCM Unit for Continuous Heating
Chang, Min; Jung, Dong Il; Jung, Jong Ho; Kim, Yongchan;
  PDF(new window)
Air-source heat pumps are widely used in winter as heating units due to their higher efficiency compared to electronic heaters or gas fired equipment. However, the air-source heat pump can cause discomfort during periodic defrosting operations. In this study, a PCM unit for continuous heating was adopted to solve this problem. The PCM unit consisted of a PCM, a heat exchanger, and control valves. It was installed between the outdoor and indoor units. The performance of the proposed system was measured during both defrosting and heating operations. The indoor unit showed an average leaving temperature of after adopting the PCM unit for continuous heating during the defrosting operation.
PCM;Defrosting;Continuous heating;
 Cited by
설비공학회 분야의 최근 연구 동향 : 2015년 학회지 논문에 대한 종합적 고찰,이대영;김사량;김현정;김동선;박준석;임병찬;

설비공학논문집, 2016. vol.28. 6, pp.256-268 crossref(new window)
Recent Progress in Air-Conditioning and Refrigeration Research : A Review of Papers Published in the Korean Journal of Air-Conditioning and Refrigeration Engineering in 2015, Korean Journal of Air-Conditioning and Refrigeration Engineering, 2016, 28, 6, 256  crossref(new windwow)
Qu, M., Xia L., Deng S., and Jiang Y., 2012, An experimental investigation on reverse-cycle defrosting performance for an air source heat pumpusing an electronic expansion valve, Applied Energy, Vol. 97, pp. 327-333. crossref(new window)

Ding, Y., Ma, G. Y., and Chai, Q. H., 2004, Experiment investigation of reverse cycle defrosting methods on air source heat pump with TXV as the throttle regulator, Int. J. Refrigeration, Vol. 27, pp. 671-678. crossref(new window)

Kamil, K., 1994, Performance of an air-to-air heat pump under frosting and defrosting conditions, Applied Energy, Vol. 48, pp. 225-241. crossref(new window)

Jang, J. Y., Bae, H. H., Lee, S. J., and Ha, M. Y., 2013, Continuous heating of an air-source heat pump during defrosting and improvement of energy efficiency, Applied Energy, Vol. 110, pp. 9-16. crossref(new window)

Jeon, C. D., 2013, Performance improvement technology on a continuous heating heat pump at frost condition, Journal of the Academia-Industrial cooperation Society, Vol. 14, No. 2, pp. 573-577. crossref(new window)

Qu, M., Xia, L., Deng, S., and Jiang, Y., 2010, Improved thermal comfort during defrost with a novel reverse- cycle defrosting method for air source heat pumps, Building and Environment, Vol. 45, pp. 2354-2361. crossref(new window)

Huang, D., Li, Q., and Yuan, X., 2009, Comparison between hot-gas bypass defrosting and reverse-cycle defrosting methods on an air-to-water heat pump, Applied Energy, Vol. 86, pp. 1697-1703. crossref(new window)

Hoffenbecker, Kelin, S.A., and Reindl, D. T., Hot gas defrost model development and validation, Int. J. Refrigeration. Vol. 28, pp. 605-615.

Choi, H. J., Kim, B. S., Kang, D. H., and Kim, K. C., 2011, Defrosting method adopting dual hot gas bypass for an air-to-air heat pump, Applied Energy, Vol. 88, pp. 4544-4555. crossref(new window)