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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| Format: | Article |
| Language: | English |
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Universidad Autónoma de Baja California
2023-09-01
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| Series: | Revista de Ciencias Tecnológicas |
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| Online Access: | https://recit.uabc.mx/index.php/revista/article/view/261 |
| _version_ | 1797289917288546304 |
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| author | José Luis Rodríguez Muñoz José Sergio Pacheco Cedeño César Manuel Valencia Castillo José de Jesús Ramírez Minguela |
| author_facet | José Luis Rodríguez Muñoz José Sergio Pacheco Cedeño César Manuel Valencia Castillo José de Jesús Ramírez Minguela |
| author_sort | José Luis Rodríguez Muñoz |
| collection | DOAJ |
| 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.
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| first_indexed | 2024-03-07T19:12:57Z |
| format | Article |
| id | doaj.art-258c7026e4994a2898d53150bc3f8b7b |
| institution | Directory Open Access Journal |
| issn | 2594-1925 |
| language | English |
| last_indexed | 2024-03-07T19:12:57Z |
| publishDate | 2023-09-01 |
| publisher | Universidad Autónoma de Baja California |
| record_format | Article |
| series | Revista de Ciencias Tecnológicas |
| spelling | doaj.art-258c7026e4994a2898d53150bc3f8b7b2024-02-29T18:50:52ZengUniversidad Autónoma de Baja CaliforniaRevista de Ciencias Tecnológicas2594-19252023-09-016310.37636/recit.v6n3e261Energy and exergy analysis of an ejector-compression refrigeration cycle with double IHX José Luis Rodríguez Muñoz0José Sergio Pacheco Cedeño1César Manuel Valencia Castillo2José de Jesús Ramírez Minguela3Ingeniería Mecánica, Universidad Autónoma del Estado de Hidalgo, Escuela Superior de Ciudad Sahagún, Carretera Cd. Sahagún-Otumba s/n, Zona Industrial, Ciudad Sahagún, Hidalgo, México, CP 43970Ingeniería Mecánica, Universidad Autónoma del Estado de Hidalgo, Escuela Superior de Ciudad Sahagún, Carretera Cd. Sahagún-Otumba s/n, Zona Industrial, Ciudad Sahagún, Hidalgo, México, CP 43970CARHS, Universidad Autónoma de San Luis Potosí, Carr. Tamazunchale - San Martín Km. 5, Tamazunchale, San Luis Potosí, México, CP 79960Departamento de Ingeniería Química, Universidad de Guanajuato, DCNE, Col. Noria Alta s/n, Guanajuato, Gto, México, CP 36050 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. https://recit.uabc.mx/index.php/revista/article/view/261EjectorRefrigerationEnergyEyector Refrigeration Energy Exergy Efficiency IHXEfficiencyIHX |
| spellingShingle | José Luis Rodríguez Muñoz José Sergio Pacheco Cedeño César Manuel Valencia Castillo José de Jesús Ramírez Minguela Energy and exergy analysis of an ejector-compression refrigeration cycle with double IHX Revista de Ciencias Tecnológicas Ejector Refrigeration Energy Eyector Refrigeration Energy Exergy Efficiency IHX Efficiency IHX |
| title | 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_short | 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 |
| topic | Ejector Refrigeration Energy Eyector Refrigeration Energy Exergy Efficiency IHX Efficiency IHX |
| url | https://recit.uabc.mx/index.php/revista/article/view/261 |
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