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

The Society of Air-Conditioning and Refrigerating Engineers of Korea (대한설비공학회)
권호 표지

Simulation of Compression/Absorption Hybrid Heat Pump System using Industrial Wastewater Heat Source

산업폐수열원 이용 증기압축식/흡수식 하이브리드 히트펌프 시스템의 시뮬레이션

  • 백영진 (한국에너지기술연구원 미활용에너지연구센터) ;
  • 박성룡 (한국에너지기술연구원 미활용에너지연구센터) ;
  • 장기창 (한국에너지기술연구원 미활용에너지연구센터) ;
  • 라호상 (한국에너지기술연구원 미활용에너지연구센터)
  • Published : 2004.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this study, in order to utilize the waste heat of industrial wastewater in the range of the relatively low temperature of 40～5$0^{\circ}C$ as a heat source, a hybrid heat pump system was considered by computer simulation method. In the simulation, an absorber, desorber and solution heat exchanger were modelled by UA values while a compressor and pump performance were specified by an isentropic efficiency. Simulation results show that the performance of hybrid heat pump can be up to 80% higher than that of conventional R134a heat pump when it makes a process hot water of 9$0^{\circ}C$ while the wastewater is cooled down to 2$0^{\circ}C$. As the absorber pressure increases, the system performance and deserter pressure increase with a favorable effect of a compressor discharge gas temperature drop.

Keywords

References

  1. Ahlby, L., Hodgett, D. and Berntsson, T., 1991, Optimization study of the compression/absorption cycle, Int. J. Refrig., Vol. 14, pp.16-23 https://doi.org/10.1016/0140-7007(91)90017-B
  2. Jeon, K., Park, C. and Jung, D., 2001, Optimization study of the compression/absorption hybrid heat pump cycle, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 13, No.1, pp. 48-58
  3. Stokar, M. and Trepp, Ch., 1987, Compression heat pump with solution circuit - Part1: Design and experimental results, Int. J. Refrig., Vol. 10, pp.87-96 https://doi.org/10.1016/0140-7007(87)90026-0
  4. Yoon, J., Chae, J, Park, K., Kwon, O. and Oh, H., 1994, Computer simulation of the absorption cycle using ammonia as a refrigerant, Proceedings of the SAREK, pp. 126-130
  5. Jeong, S., 1995, A numerical simulation of air-cooled ammonia/water GAX absorption cooling cycle, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol.7, No.3, pp. 488-500
  6. Kang, Y, Cho, H. and Hong, H., 2001, Hybrid GAX cycle: Performance improvement and low temperature applications, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol. 13, No. 10, pp.923-929
  7. Chang, Y, Jeong, E. and Kim, B., 2001, A numerical analysis of a revised VX absorption cooling cycle, Korean Journal of AirConditioning and Refrigeration Engineering, Vol. 13, No.6, pp. 505-513
  8. Kim, So, Kim, Yo, Peck, J. and Park, So, 2002, Cycle analysis of diffusion absorption refrigerator, Korean Journal of Air-Conditioning and Refrigeration Engineering, Vol.14, No. 10, pp.817-824
  9. Jeong, J. Hwang, K., Hyun, S., Yoshikawa, Co, Saito, K. and Kawai, S., 2003, Performance enhancement of absorption chiller using NHrHzO with ejector, Proceedings of the SAREK, pp, 208-213