Design Effect of Different Components and Economic Evaluation of an Adsorption Chiller on the System Performance

  • Bidyut B. Saha (Institute of Advanced Material Study, Kyushu University) ;
  • Shigeru Koyama (Institute of Advanced Material Study, Kyushu University) ;
  • K.C. Amanul Alam (Bio-Applications and Systems Engineering, Tokyo University off. & T) ;
  • Lee, Jong-Boong (Div. of Mechanical and Automation Engineering, Kyungnam University)
  • Published : 2002.04.01

Abstract

A conventional silica gel/water adsorption chiller has been analyzed numerically. A novel non-dimensional mathematical model has been presented to analyze the design effect of different components of an adsorption chiller. The design parameters of this system are characterized by the number of transfer unit, NTU, of different components and the inert material alpha number, ${\alpha}$of different components of the systems. Results show that condenser NTU$\sub$a/ has the most influential effect on the system performance, which is fellowed by absorber NTU$\sub$e/. It is also seen that coefficient of performance (COP) and non-dimensional specific cooling capacity increases with the increase of NTU$\sub$a/ and NTU$\sub$e/, but decreases with the increase of inert material alpha number. A thermo-economic data of the adsorption chiller and some other heat pump systems those are in practical operation are also presented.

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