C305 ANALYSIS OF PERFORMANCE EFFECT OF HEAT SOURCE TEMPERATURE ON SILICA GEL-WATER ADSORPTION CHILLER(Heat Pump-2)

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  • MA Xinling
    School of Chemical Engineering, Zhengzhou University
  • WEI Xinli
    School of Chemical Engineering, Zhengzhou University
  • MENC Xiangrui
    School of Chemical Engineering, Zhengzhou University
  • YAO Yao
    School of Chemical Engineering, Zhengzhou University

抄録

Through experimental research of the performance effect about the heat source temperature to silica gel-water adsorption chiller, the results obtained show that with temperature increasing refrigerating output will grow, but increment rate is variational; and when the heat source temperature rises, the variety of COP is a wave curve, so COP value comes into being two wave crests and two troughs. With further studies on the microstructure and shape of silica gel, the investigation proves that the micropore of silica gel is mostly "inkbottle" shape, and the distribution of micropore diameter is well-regulated. The results show the adsorption-desorption hysteresis should be sufficiently taken into account when designing or appraising the silica gel-water adsorption chiller. It is also indicated that the micropore diameter of silica gel would match with heat source temperature when designing the experiment.

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