Energy and exergy analysis of an ejector-compression refrigeration cycle with double IHX

Energy and exergy analysis of an ejector-compression refrigeration cycle with double IHX

This paper shows an energy and exergy analysis of an ejector-compression refrigeration cycle, in which two heat exchangers are included to the system: 1) between the condenser and liquid separator (IHX-1) and 2) between the condenser and the evaporator (IHX-2), which is an alternative configuration...

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Autores principales: Rodríguez Muñoz, José Luis, Pacheco Cedeño, José Sergio, Valencia Castillo, César Manuel, Ramírez Minguela, José de Jesús
Formato: Online
Lenguaje:spa
Publicado: Universidad Autónoma de Baja California 2023
Acceso en línea:https://recit.uabc.mx/index.php/revista/article/view/261
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id recit-article-261
record_format ojs
institution RECIT
collection OJS
language spa
format Online
author Rodríguez Muñoz, José Luis
Pacheco Cedeño, José Sergio
Valencia Castillo, César Manuel
Ramírez Minguela, José de Jesús
spellingShingle Rodríguez Muñoz, José Luis
Pacheco Cedeño, José Sergio
Valencia Castillo, César Manuel
Ramírez Minguela, José de Jesús
Energy and exergy analysis of an ejector-compression refrigeration cycle with double IHX
author_facet Rodríguez Muñoz, José Luis
Pacheco Cedeño, José Sergio
Valencia Castillo, César Manuel
Ramírez Minguela, José de Jesús
author_sort Rodríguez Muñoz, José Luis
title Energy and exergy analysis of an ejector-compression refrigeration cycle with double IHX
title_short Energy and exergy analysis of an ejector-compression refrigeration cycle with double IHX
title_full Energy and exergy analysis of an ejector-compression refrigeration cycle with double IHX
title_fullStr Energy and exergy analysis of an ejector-compression refrigeration cycle with double IHX
title_full_unstemmed Energy and exergy analysis of an ejector-compression refrigeration cycle with double IHX
title_sort energy and exergy analysis of an ejector-compression refrigeration cycle with double ihx
description This paper shows an energy and exergy analysis of an ejector-compression refrigeration cycle, in which two heat exchangers are included to the system: 1) between the condenser and liquid separator (IHX-1) and 2) between the condenser and the evaporator (IHX-2), which is an alternative configuration proposed and this configuration is defined as ERC+IHX-1+IHX-2. The effect of evaporation temperature and the heat exchanger effectiveness on the energy and exergy efficiencies and the irreversibilities of each component of the cycle have been analyzed for refrigeration and air conditioning applications. The results show that for the alternative configuration and an effectiveness of IHX-1=80%, it results slightly with a higher COP than when the configurations work with an effectiveness of IHX-2=80%. However, the exergy efficiency increases when the evaporation temperature decreases. The components that show the highest contribution to the irreversibilities in the ERC+IHX-1+IHX-2 configuration are: the condenser, the compressor and the evaporator; whereas that the lowest contribution is due to the expansion valve and IHX-1. In addition, the alternative configuration proposed presents a higher exergetic efficiency and lower irreversibilities than the configurations ERC+IHX-1 y ERC+IHX-2 reported in the literature.
publisher Universidad Autónoma de Baja California
publishDate 2023
url https://recit.uabc.mx/index.php/revista/article/view/261
_version_ 1792095382804627456
spelling recit-article-2612024-02-13T02:50:36Z Energy and exergy analysis of an ejector-compression refrigeration cycle with double IHX Estudio energético y exergético de un sistema de refrigeración por eyecto-compresión con doble IHX Rodríguez Muñoz, José Luis Pacheco Cedeño, José Sergio Valencia Castillo, César Manuel Ramírez Minguela, José de Jesús Ejector Refrigeration Energy Eyector Refrigeration Energy Exergy Efficiency IHX Efficiency IHX Eyector Refrigeración Rendimiento Energético Exergético IHX This paper shows an energy and exergy analysis of an ejector-compression refrigeration cycle, in which two heat exchangers are included to the system: 1) between the condenser and liquid separator (IHX-1) and 2) between the condenser and the evaporator (IHX-2), which is an alternative configuration proposed and this configuration is defined as ERC+IHX-1+IHX-2. The effect of evaporation temperature and the heat exchanger effectiveness on the energy and exergy efficiencies and the irreversibilities of each component of the cycle have been analyzed for refrigeration and air conditioning applications. The results show that for the alternative configuration and an effectiveness of IHX-1=80%, it results slightly with a higher COP than when the configurations work with an effectiveness of IHX-2=80%. However, the exergy efficiency increases when the evaporation temperature decreases. The components that show the highest contribution to the irreversibilities in the ERC+IHX-1+IHX-2 configuration are: the condenser, the compressor and the evaporator; whereas that the lowest contribution is due to the expansion valve and IHX-1. In addition, the alternative configuration proposed presents a higher exergetic efficiency and lower irreversibilities than the configurations ERC+IHX-1 y ERC+IHX-2 reported in the literature. El presente trabajo analiza energética y exegéticamente, un ciclo de refrigeración por eyecto-compresión, en el que dos equipos de intercambio de calor son incluidos al sistema: 1) entre el condensador y el separador de líquido (IHX-1) y 2) entre el condensador y el evaporador (IHX-2), la cual es una configuración alternativa, y es definida como ERC+IHX-1+IHX-2. El efecto de la temperatura de evaporación y la efectividad de los intercambiadores de calor sobre el rendimiento energético, eficiencia exergética y las irreversibilidades en cada uno de los componentes del sistema son analizados para aplicaciones de refrigeración y acondicionamiento de aire. Para este estudio R134a es usado como fluido refrigerante. Los resultados muestran que al emplear la configuración propuesta y una efectividad en el IHX-1=80%, esta resulta ligeramente con mayor COP y mayor rendimiento exergético que la configuración operando a una efectividad en el IHX-2=80%. Sin embargo, la eficiencia exergética aumenta al disminuir la temperatura de evaporación. Los componentes que presentan las mayores contribuciones a la irreversibilidad en ambas configuraciones, son el condensador, compresor y evaporador; mientras que las menores contribuciones se presentan en la válvula de expansión y el IHX-1. Además, la configuración alternativa ERC+IHX-1+IHX-2 presenta una mayor eficiencia exergética y menores irreversibilidades, en comparación con las configuraciones ERC+IHX-1 y ERC+IHX-2 reportadas en la literatura. Universidad Autónoma de Baja California 2023-09-26 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf text/html text/xml https://recit.uabc.mx/index.php/revista/article/view/261 10.37636/recit.v6n3e261 REVISTA DE CIENCIAS TECNOLÓGICAS; Vol. 6 No. 3 (2023): July-September; e261 REVISTA DE CIENCIAS TECNOLÓGICAS; Vol. 6 Núm. 3 (2023): Julio-Septiembre; e261 2594-1925 spa https://recit.uabc.mx/index.php/revista/article/view/261/469 https://recit.uabc.mx/index.php/revista/article/view/261/470 https://recit.uabc.mx/index.php/revista/article/view/261/471 Copyright (c) 2023 José Luis Rodríguez Muñoz , José Sergio Pacheco Cedeño, César Manuel Valencia Castillo, José de Jesús Ramírez Minguela https://creativecommons.org/licenses/by/4.0

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