Optimization of an irreversible Carnot engine in finite time and finite size
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| Formato: | Artículo científico |
| Lenguaje: | en |
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Sociedad Mexicana de Física A.C.
2006
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| _version_ | 1876460347706048512 |
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| author | J.R. Morales-Gómez |
| author_facet | J.R. Morales-Gómez |
| contents | Optimization of an irreversible Carnot engine in finite time and finite size J.R. Morales-Gómez G. Aragón-González A. Canales-Palma A. León-Galicia Física, Astronomía y Matemáticas heat engines finite time and size thermodynamics Internal and external irreversibilities In this work, we consider the class of irreversible Carnot engines that results from combining the characteristics of two models found in theliterature: the model in finite time and the model in finite size. The performance of the resulting model, including three irreversibilities, wasdoubly-optimized in finite time and finite size. The first optimization of power and efficiency, maintaining the thermal conductances fixed,was performed in finite time. Since the optimum time ratio from the first optimization, is the same for both maximum power and maximumefficiency, this means that the model can be newly optimized but now in finite size. Then, the second optimization, maintaining the overallheat transfer coefficient constant, was performed. For both optimizations, analytical expressions for the efficiency that maximizes the powerand maximum efficiency were obtained. Changing the order in which partial optimizations were carried out, a remarkable optimal propertywas obtained: the resources of total contact time and the total area of heat transfer are proportional. 2006 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57065202 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.4 Vol.52 |
| format | Artículo científico |
| id | redalyc_57065202 |
| institution | Redalyc |
| language | en |
| publishDate | 2006 |
| publisher | Sociedad Mexicana de Física A.C. |
| spellingShingle | Optimization of an irreversible Carnot engine in finite time and finite size J.R. Morales-Gómez Física, Astronomía y Matemáticas heat engines finite time and size thermodynamics Internal and external irreversibilities Optimization of an irreversible Carnot engine in finite time and finite size J.R. Morales-Gómez G. Aragón-González A. Canales-Palma A. León-Galicia Física, Astronomía y Matemáticas heat engines finite time and size thermodynamics Internal and external irreversibilities In this work, we consider the class of irreversible Carnot engines that results from combining the characteristics of two models found in theliterature: the model in finite time and the model in finite size. The performance of the resulting model, including three irreversibilities, wasdoubly-optimized in finite time and finite size. The first optimization of power and efficiency, maintaining the thermal conductances fixed,was performed in finite time. Since the optimum time ratio from the first optimization, is the same for both maximum power and maximumefficiency, this means that the model can be newly optimized but now in finite size. Then, the second optimization, maintaining the overallheat transfer coefficient constant, was performed. For both optimizations, analytical expressions for the efficiency that maximizes the powerand maximum efficiency were obtained. Changing the order in which partial optimizations were carried out, a remarkable optimal propertywas obtained: the resources of total contact time and the total area of heat transfer are proportional. 2006 artículo científico 0035-001X https://www.redalyc.org/articulo.oa?id=57065202 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.4 Vol.52 |
| title | Optimization of an irreversible Carnot engine in finite time and finite size |
| topic | Física, Astronomía y Matemáticas heat engines finite time and size thermodynamics Internal and external irreversibilities |
| url | https://www.redalyc.org/articulo.oa?id=57065202 |