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

  • 제25권1호
  • /
  • Pages.20-27
  • /
  • 2013
  • /
  • 1229-6422(pISSN)
  • /
  • 2465-7611(eISSN)
대한설비공학회 (The Society of Air-Conditioning and Refrigerating Engineers of Korea)
권호 표지
DOI QR코드

DOI QR Code

수치적 모델링을 통한 이산화탄소 급탕기의 특성 연구

Studies on Performance of CO2 Water Heater by Numerical Modeling

  • 박한빛 (한밭대학교 기계공학과) ;
  • 윤린 (한밭대학교 기계공학과)
  • Park, Han Vit (Department of Mechanical Engineering, Hanbat National University) ;
  • Yun, Rin (Department of Mechanical Engineering, Hanbat National University)
  • 투고 : 2012.10.07
  • 발행 : 2013.01.10
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

Numerical modeling of $CO_2$ water heater was conducted prior to optimal design of medium and large sized $CO_2$ water heater, and the experimental test with small sized $CO_2$ water heater having heat capacity of 4 kW was completed to verify the present numerical model. The present model estimated the experimental data of COP(coefficient of performance), heating capacity, and the hot water outlet temperature within the range of 3% to 8% of mean deviation. As increase of EEV(electric expansion valve) opening area, decreasing of heating capacity and the hot water outlet temperature, and increasing of COP were found in both experimental and numerical investigation.

키워드

참고문헌

  1. Laioradit, P., Tiansuwa, J., Kiatsiriroat, T., and Aye, L., 2008, Theoretical performance analysis of heat pump water heater using carbon dioxide as refrigerant, Int. J. Energy Res, Vol. 32, pp. 356-366. https://doi.org/10.1002/er.1357
  2. Cho, H., Lee, M.-Y., and Kim, Y., 2009, Numerical evaluation on the performance of advanced $CO_2$ cycles in the cooling mode operation, Applied Thermal Engineering Vol. 29, pp. 1485-1492. https://doi.org/10.1016/j.applthermaleng.2008.06.030
  3. Sanchez, D., Torrella, E., Cabello, R., and Llopis, R., 2010, Influence of the superheat associated to a semihermetic compressor of a transcritical $CO_2$ refrigeration plant, Applied Thermal Engineering Vol. 30, pp. 302-309. https://doi.org/10.1016/j.applthermaleng.2009.09.008
  4. Kim, S. G. and Kim, M. S., 2003, Experimental studies on the performance of a transcritical cycle for hot water heating using carbon dioxide, Korea Journal of Air-conditioning and Refrigeration, Vol, 15, pp. 461-470.
  5. Beak, C., Lee, E., Kang, H., Kim, Y., Cho, H., and Cho, S. 2008, Experimental study on the heating performance of a $CO_2$ heat pump water heater, Korea Journal of Air-conditioning and Refrigeration, Vol, winter, pp. 310-315.
  6. Lee, H. S., Kim, J.-D., Woo, J.-T., and Chang, K. S., 2009, A Study on the performance characteristics of heat pump system using carbon dioxide as refrigerant, Korea Journal of Airconditioning and Refrigeration, Vol, winter, pp. 645-650.
  7. Park, H. V., Quoc, N., Yun, R., Kim, Y., Lee, S. J., and Choi, S., 2011, Developing the $CO_2$ water heater adapting high efficient gas cooler, Korea Journal of Air-conditioning and Refrigeration, Vol. winter, pp. 29-32.

피인용 문헌

  1. Water Heater vol.25, pp.4, 2013, https://doi.org/10.6110/KJACR.2013.25.4.173