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Vidal, Humberto; Colle, Sergio. Simulation and economic optimization of a solar assisted combined ejector: vapor compression cycle for cooling applications. 2005 SOLAR WORLD CONGRESS, 2005, Orlando, Flórida.
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Dados do autor na base InfoHab:
Número de Trabalhos: 1 (Nenhum com arquivo PDF disponível)
Citações: Nenhuma citação encontrada
Índice h: Indice h não calculado  
Co-autores: Nenhum co-autor encontrado

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Abstract

This paper describes the hourly simulation and optimization of a thermally driven cooling cycle assisted by solar energy. The double stage solar ejector cooling cycle is modeled using the TRNSYS-EES simulation tool and the typical meteorological year file containing the weather data of Florianópolis, Brazil. The first stage is performed by a mechanical compression system with R-134a as the working fluid, while the second stage is performed by a thermally driven ejector cycle with R-141b. Flat plate collectors and an auxiliary energy burner provides heat to the ejector cycle. The thermoeconomical optimization is carried out with respect to the intercooler temperature and the flat plate solar collector area, for given specific costs of the auxiliary energy and electric energy, the capital cost of the collectors, ejector cooler, and the capital cost of equivalent mechanical compression cooler. Upper bounds for economical feasibility in terms of the costs of the auxiliary energy and electric energy are also presented.
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