The fundamental optimal relations and the bounds of the allocation of heat exchangers and efficiency for a non-endoreversible brayton cycle
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| Format: | Artículo científico |
| Langue: | en |
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Sociedad Mexicana de Física A.C.
2005
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| _version_ | 1876461385571893248 |
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| author | G. Aragón-González |
| author_facet | G. Aragón-González |
| contents | The fundamental optimal relations and the bounds of the allocation of heat exchangers and efficiency for a non-endoreversible brayton cycle G. Aragón-González A. Canales-Palma A. León-Galicia M. Musharrafie-Martínez Física, Astronomía y Matemáticas heat engines Thermodynamics Optimization internal and external irreversibilities In this paper we analyze a Brayton cycle with external and internal irreversibilities. The external ones come from heat transfer with counterflowheat exchangers in the cold and hot sides; the internal irreversibilities are given by the isentropic efficiencies of the compressor andturbine. Optimization is carried out with respect to the pressure ratio and the total inventory of the heat transfer units, using the "-NTUmethod. We show the analytical expressions for the efficiency that mazimizes work and the optimal allocation (size) of heat exchangers. We also analyze the asymptotic behavior of these expressions. The results obtained extend a Bejans model and are more general and useful. 2005 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57063706 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.1 Vol.51 |
| format | Artículo científico |
| id | redalyc_57063706 |
| institution | Redalyc |
| language | en |
| publishDate | 2005 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | The fundamental optimal relations and the bounds of the allocation of heat exchangers and efficiency for a non-endoreversible brayton cycle G. Aragón-González Física, Astronomía y Matemáticas heat engines Thermodynamics Optimization internal and external irreversibilities The fundamental optimal relations and the bounds of the allocation of heat exchangers and efficiency for a non-endoreversible brayton cycle G. Aragón-González A. Canales-Palma A. León-Galicia M. Musharrafie-Martínez Física, Astronomía y Matemáticas heat engines Thermodynamics Optimization internal and external irreversibilities In this paper we analyze a Brayton cycle with external and internal irreversibilities. The external ones come from heat transfer with counterflowheat exchangers in the cold and hot sides; the internal irreversibilities are given by the isentropic efficiencies of the compressor andturbine. Optimization is carried out with respect to the pressure ratio and the total inventory of the heat transfer units, using the "-NTUmethod. We show the analytical expressions for the efficiency that mazimizes work and the optimal allocation (size) of heat exchangers. We also analyze the asymptotic behavior of these expressions. The results obtained extend a Bejans model and are more general and useful. 2005 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57063706 en http://www.redalyc.org/revista.oa?id=570 Revista Mexicana de Física application/pdf Sociedad Mexicana de Física A.C. Revista Mexicana de Física (México) Num.1 Vol.51 |
| title | The fundamental optimal relations and the bounds of the allocation of heat exchangers and efficiency for a non-endoreversible brayton cycle |
| topic | Física, Astronomía y Matemáticas heat engines Thermodynamics Optimization internal and external irreversibilities |
| url | https://www.redalyc.org/articulo.oa?id=57063706 |