Solar driven steam jet ejector chiller

Abstract This paper presents a solar driven process to generate cold water for air-conditioning by parabolic trough collectors and a steam jet ejector chiller. The only working fluid in the system is water, which is used as refrigerant and working fluid. The operational behaviour of such a system has been investigated by a small test rig. The investigation shows that the cooling water temperature as well as the cold water temperature has a strong influence on the coefficient of performance of a steam jet ejector chiller. The coefficient of performance reaches high values in part load and at good re-cooling conditions, so that the mean efficiency is clearly higher than the nominal efficiency of the system. A first calculation of profitability leads to specific cold cost of 0.62 €/kWh in Germany and 0.15 €/kWh in Egypt.

[1]  Saffa Riffat,et al.  Development of a solar-powered passive ejector cooling system , 2001 .

[2]  N. A. Shchetinina,et al.  Selection of cycle design parameters for solar ejector freon refrigeration machine /SEFRM/ , 1980 .

[3]  Hans-Martin Henning,et al.  Solar-assisted air conditioning in buildings : a handbook for planners , 2007 .

[4]  Nehad Al-Khalidy,et al.  Experimental investigation of solar concentrating collectors in a refrigerant ejector refrigeration machine , 1997 .

[5]  Sergio Colle,et al.  Modelling and hourly simulation of a solar ejector cooling system , 2006 .

[6]  Jorge I. Hernández,et al.  Study of a Solar Booster Assisted Ejector Refrigeration System With R134a , 2005 .

[7]  Hans Martin Henning.  Solar Assisted Air-Conditioning in Buildings , 1993 .

[8]  Adnan Sözen,et al.  Solar-driven ejector-absorption cooling system , 2005 .

[9]  M. Sokolov,et al.  Solar-powered compression-enhanced ejector air conditioner , 1993 .

[10]  Saffa Riffat,et al.  A combined heat and power system for buildings driven by solar energy and gas , 2002 .

[11]  Saffa Riffat,et al.  A novel heat pipe/ejector cooler , 1998 .

[12]  Saffa Riffat,et al.  Hybrid Solar/Gas Cooling Ejector Unit for a Hospital in Mexico , 2000 .

[13]  V. W. Chai,et al.  A thermodynamic analysis of a solar-powered jet refrigeration system , 1980 .

[14]  A. Kakabaev,et al.  Freon ejector solar cooler , 1966 .

[15]  S. Srinivasa Murthy,et al.  Experiments on vapour jet refrigeration system suitable for solar energy applications , 1991 .

[16]  V. A. Petrenko,et al.  A Combined Ejector Cooling and Hot Water Supply System Using Solar and Waste Heat Energy , 2000 .

[17]  A. Bejan,et al.  Optimal allocation of a heat-exchanger inventory in heat driven refrigerators , 1995 .

[18]  G. K. Alexis,et al.  A solar ejector cooling system using refrigerant R134a in the Athens area , 2005 .

[19]  A. Selvaraju,et al.  Experimental investigation on R134a vapour ejector refrigeration system , 2006 .