Journal of the Korean Solar Energy Society (한국태양에너지학회 논문집)

The Korean Solar Energy Society (한국태양에너지학회)
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A Study on Remodeling for Solar driven $NH_3/H_2O$ absorption chiller

태양열 구동 $NH_3/H_2O$ 흡수식 냉동기 리모델링 연구

  • Shin, You-Soo (Dept. of Mechanical Eng., Graduate School, Hanyang University) ;
  • Maeng, Ju-Sung (Dept. of Mechanical Eng., Hanyang University) ;
  • Kwak, Hee-Youl (Solar center, Korea Institute of Energy Research)
  • 신유수 (한양대학교 대학원 기계공학과) ;
  • 맹주성 (한양대학교 기계공학과) ;
  • 곽희열 (한국에너지기술연구원)
  • Published : 2003.12.30
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Abstract

The aim of this research is to study the feasibility of the solar(hot fluid) driven $NH_3/H_2O$ absorption chiller, made by re-manufacturing of Gas fired $NH_3/H_2O$ absorption chiller. This experimental study is performed with the temperature of the inlet hot fluid of generator. In order to determine the inlet temperature of the generator, which gives maximum COP, the experimental data are obtained with various hot fluid supply temperature in range of $130\sim170^{\circ}C$. Remodeled chiller is operated with periodical cooling effect, which due to mixture subcooled pool boiling, then the COP is evaluated in average. The maximum COP$(\sim0.36)$ is at $160^{\circ}C$. The temperature is stable operation temperature range of typical vacuum collector. It offers a feasibility of solar driven $NH_3/H_2O$ absorption chiller.

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References

  1. P. B. Whalley, 1987, Boiling condensation and Gas-Liquid Flow, Clarendon Press, Oxford, pp. 167-170
  2. L. A, Schaefer, 1997, Heat exchanger Mean temperature differences for refrigerant mixture., Georgia Institute of Technology
  3. Tohiki Inoue, Masanoh Monde, Yoshio Teruya, 2002, pool boiling heat transfer in binary mixtures of ammonia/water, Int J Heat and Mass Transfer, Vol. 45, pp 4409-4415 https://doi.org/10.1016/S0017-9310(02)00153-9
  4. R. M. Lazzarin, A. Gasparella, G. A. Longo, 1996, Ammonia-water absorption machines for refrigeration: theoretical and real perfo-rmance, Int J. Refrig. Vol. 19, pp. 239-246 https://doi.org/10.1016/0140-7007(96)00016-3