Performance of an adsorptive solar ice maker operating with a single double function heat exchanger (evaporator/condenser)

With the help of an experimental data base, the overall heat transfer coefficient of the double function heat exchanger (condenser/evaporator) of a novel adsorptive solar ice maker (ASIM) was estimated. The calculation shows that this parameter, which is required for simulation, is not constant during the adsorption–evaporation phase and that it is higher during the water freezing phase. With the help of a predictive mathematical model the operation of the studied ASIM was simulated and the results were analysed. They showed that with a consistent design of the different components of this machine the daily ice production could exceed 5.2kg, with a COPs of more than 0.14. This value of the COPs is very interesting in comparison with those usually obtained from the ASIMs operating with separate condenser and evaporator, i.e. 0.08–0.2, according to the meteorological conditions or technologies.

[1]  Francis Meunier,et al.  Experimental Tests and Predictive Model of an Adsorptive Air Conditioning Unit , 1999 .

[2]  Catherine Hildbrand,et al.  A new solar powered adsorption refrigerator with high performance , 2004 .

[3]  A. F. Kothdiwala,et al.  Charcoal-methanol adsorption refrigerator powered by a compound parabolic concentrating solar collector , 1994 .

[4]  M. Dubinin,et al.  On thermodynamics of adsorption in micropores , 1972 .

[5]  A Boubakri.  A new conception of an adsorptive solar-powered ice maker , 2003 .

[6]  Ruzhu Wang,et al.  An energy efficient hybrid system of solar powered water heater and adsorption ice maker , 2000 .

[7]  Marie-Noëlle Pons,et al.  Experimental study of adsorptive solar-powered ice makers in Agadir (Morocco)—2. Influences of meteorological parameters , 1992 .

[8]  N. M. Khattab.  A novel solar-powered adsorption refrigeration module , 2004 .

[9]  N Medini,et al.  Etude d'une machine solaire autonome à fabriquer de la glace , 1991 .

[10]  P. Worsøe-Schmidt.  Solar refrigeration for developing countries using a solid-absorption cycle , 1983 .

[11]  Ruzhu Wang,et al.  Experimental study on adsorbent of activated carbon with refrigerant of methanol and ethanol for solar ice maker , 2004 .

[12]  R. E. Critoph.  An ammonia carbon solar refrigerator for vaccine cooling , 1994 .

[13]  Marie-Noëlle Pons,et al.  Experimental study of adsorptive solar-powered ice makers in Agadir (Morocco)—1. Performance in actual site , 1992 .

[14]  J. J. Guilleminot,et al.  Adsorptive solar powered ice maker: experiments and model , 2000 .

[15]  F. Buchter,et al.  An experimental solar-powered adsorptive refrigerator tested in Burkina-Faso , 2003 .

[16]  Michel Daguenet,et al.  Performance of a new solid adsorption ice maker with solar energy regeneration , 2000 .

[17]  J. J. Guilleminot,et al.  Design of an experimental solar-powered, solid-adsorption ice maker , 1986 .