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A THEORETICAL ANALYSIS OF A SOLAR-FUEL ASSISTED ABSORPTION POWER CYCLE.

Author(s) : ALY S. E.

Type of article: Article

Summary

THE CONDENSER, EXPANSION VALVE AND EVAPORATOR ARE REPLACED BY A SUPERHEATER AND A STEAM TURBINE, WHILE A FLASHING TANK REPLACES THE GENERATOR. THE CYCLE IS POWERED BY MEDIUM CONCENTRATORS WITH A SOLAR COLLECTING TEMPERATURE OF 438 K (165 DEG C). STEAM GENERATED IN THE FLASHING TANK (100 KILOPASCALS) IS SUPERHEATED TO 873 K (600 DEG C) BEFORE IT EXPANDS IN THE TURBINE DOWN TO 1.25 KILOPASCALS. THIS IS MAINTAINED BY THE EQUILIBRIUM CONDITIONS IN A WATER COOLED ABSORBER, WATER-LITHIUM BROMIDE SOLUTION IS DIRECTLY CIRCULATED IN THE SOLAR COLLECTORS AND THE NON-SOLAR ENERGY INPUT TO THE SYSTEM IS 23% OF ITS TOTAL REQUIREMENTS. RESULTS SHOWED THAT USING A 710 TON REFRIGERATION ABSORPTION MACHINE, THE SYSTEM WOULD GENERATE 960 KILOWATT SHAFT POWER AT A THERMAL EFFICIENCY OF 25% WHICH IS 44% HIGHERTHAN THE AVAILABLE SYSTEMS. WHEN THIS SYSTEM IS COMBINED WITH A VAPOUR COMPRESSION REFRIGERATOR, AN OVERALL COP OF 1.4 IS OBTAINED. THIS IS NE AT THE EXPENSE OF 23% NON-SOLAR ENERGY SUPPLY.

Details

  • Original title: A THEORETICAL ANALYSIS OF A SOLAR-FUEL ASSISTED ABSORPTION POWER CYCLE.
  • Record ID : 1989-0766
  • Languages: English
  • Subject: General information
  • Source: Heat Recov. Syst. CHP - vol. 8 - n. 2
  • Publication date: 1988

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