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Simulación de un concentrador solar de disco parabólico para producción de potencia y enfriamiento
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Advisor(s)
Abstract(s)
RESUMEN: En este trabajo se presenta la modelación y simulación de un concentrador solar de disco parabólico para alimentar térmicamente a un sistema de refrigeración por absorción y a un motor Stirling, con diferente eficiencia, acoplado con un sistema de refrigeración por compresión. El enfriamiento producido por este sistema se utiliza para aire acondicionado de una vivienda. El estudio fue realizado mediante balances de energía y de masa, en cada componente de los sistemas de refrigeración y del sistema solar. La transferencia de calor por convección y por radiación también fueron considerados. Los resultados muestran que el colector solar alcanza eficiencia térmica de hasta 0.82 para relación de concentración de 100. El concentrador solar produce hasta 1.3 kW. En tanto que el sistema completo puede producir enfriamiento de 2.3 kW y 0.47 kW por el sistema de compresión y el de absorción respectivamente. La potencia de la bomba de la disolución es hasta 20 veces menor que la potencia requerida por el compresor del sistema de compresión.
ABSTRACT: This paper presents the dish solar collector modeling and simulation for thermally driving an absorption refrigeration system and a Stirling engine, with different efficiency, coupled with a compression refrigeration system. The cooling produced by the system is used for home air conditioning. The study by means energy and mass balances, in each component of the cooling systems and the solar system was carried out. The Convection and radiation heat transfer also has been considered. The results show that the solar collector reaches thermal efficiency of up to 0.82 for a concentration ratio of 100. The solar concentrator produces up to 1.3 kW. While the complete system 2.3 kW and 0.47 kW of cooling by the compression and absorption system respectively can produce. The power of the solution pump is up to 20 times less than the power required by the compressor of the compression system.
ABSTRACT: This paper presents the dish solar collector modeling and simulation for thermally driving an absorption refrigeration system and a Stirling engine, with different efficiency, coupled with a compression refrigeration system. The cooling produced by the system is used for home air conditioning. The study by means energy and mass balances, in each component of the cooling systems and the solar system was carried out. The Convection and radiation heat transfer also has been considered. The results show that the solar collector reaches thermal efficiency of up to 0.82 for a concentration ratio of 100. The solar concentrator produces up to 1.3 kW. While the complete system 2.3 kW and 0.47 kW of cooling by the compression and absorption system respectively can produce. The power of the solution pump is up to 20 times less than the power required by the compressor of the compression system.
Description
CIES2020 - XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar
Keywords
Solar energy Solar collectors Parabolic system Modelling Simulation
Citation
Reyes, J.J... [et.al.] - Simulación de un concentrador solar de disco parabólico para producción de potencia y enfriamiento. In: CIES2020: As Energias Renováveis na Transição Energética: Livro de Comunicações do XVII Congresso Ibérico e XIII Congresso Ibero-americano de Energia Solar. Helder Gonçalves, Manuel Romero (Ed.). Lisboa, Portugal: LNEG, 3-5 Novembro, 2020, p. 375-381
Publisher
LNEG - Laboratório Nacional de Energia e Geologia