Modelling of energetic optimal working point of an ejector air conditioner combined with a flat solar collector

• Autorzy: Kasperski J. , Pietrowicz S.
• Języki publikacji: EN

Abstrakty

EN

An article describes prototype of multi-layer solar air-conditioner of small refrigerating capacity. In a compact device installed in a hipped roof end or in a wall of building, a ejector refrigerating cycle is supplied with a steam generated in a flat solar collector. Compiling the equations describing the phenomena occur in a steam ejector and the heat exchangers a physical model of the device was proposed. Numerical version of that model was used to create the characteristics of cooperating devices. The obtained characteristics allowed to determine an optimum point of device work. Finally the general guidelines for design engineers were formulated.

Słowa kluczowe

EN

air conditioning; ejector; solar collector

PL

ejektor; kolektor słoneczny; warunki powietrza

• Wydawca: Wydawnictwo Instytutu Maszyn Przepływowych PAN ; Komitet Termodynamiki i Spalania PAN
• Czasopismo: Archives of Thermodynamics
• Rocznik: 2006
• Tom: Vol. 27, no. 4
• Strony: 111--122
• Opis fizyczny: Rys., wykr., tab.,Bibliogr. 8 poz.,

Twórcy

autor

Kasperski J.

autor

Pietrowicz S.

• Wrocław University of Technology, Institute of Heat Engineering and Fluid Mechanics, Wybrzeże Wyspiańskiego 27, 50-370 Wrocław, Poland

Bibliografia

• [1] DORANTES R., ESTRADA C.A., PILATOWSKY I.; Mathematical simulation of a solar compression refrigeration system, Applied Thermal Engineering, Vol. 16, 1996.
• [2] SUN DA-WEN: Solar powered combined ejector-vapour compression cycle for air conditioning and refrigeration, Energy Conversion, Vol. 38, 1997.
• [3] HUANG B. J., PETRENKO V. A., SAMOFATOV Y.A., SHCHETININA N. A.: Collector selection for solar ejector cooling system, Solar Energy, Vol. 71, 2001.
• [4] ARBEL A., SOKOLOV M.: Revisiting solar-powered ejector air conditioner-the greener the better, Solar Energy 77, 2004.
• [5] PRIDASAWAS W., LUNDQVIST P.: An exergy analysis of a solar-driven ejector refrigeration system, Solar Energy 76, 2004.
• [6] ALEXIS G.K., KARAYIANNIS E.K.: A solar ejector cooling system using refrigeration R134a in the Athens area, Renewable Energy, 30, 2005.
• [7] SHEN S., QU X., ZHANG B., RIFFAT S., GILLOTT M.: Study of a gas-liquid ejector and its application to a solar-powered bi-ejector refrigeration system, Applied Thermal Engineering, Vol. 25, 2005.
• [8] PALIWODA A.: Ejectar Refrigerating Devices, WNT, Warszawa 1971 (in Polish).