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Thermodynamics Irreversibilities Analysis of Oxy-Fuel Diffusion Flames: The Effect of Oxygen Concentration
In studies on the combustion process, thermodynamic analysis can be used to evaluate the irreversibility of the combustion process and improve energy utilization efficiency. In this paper, the combustion process of a laminar oxy-fuel diffusion flame was simulated, and the entropy generation due to t...
Autores principales: | , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2022
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8871081/ https://www.ncbi.nlm.nih.gov/pubmed/35205499 http://dx.doi.org/10.3390/e24020205 |
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author | Yan, Huibo Tang, Guangtong Wang, Chaoyang Li, Lujiang Zhou, Yuanke Zhang, Zhongnong Lou, Chun |
author_facet | Yan, Huibo Tang, Guangtong Wang, Chaoyang Li, Lujiang Zhou, Yuanke Zhang, Zhongnong Lou, Chun |
author_sort | Yan, Huibo |
collection | PubMed |
description | In studies on the combustion process, thermodynamic analysis can be used to evaluate the irreversibility of the combustion process and improve energy utilization efficiency. In this paper, the combustion process of a laminar oxy-fuel diffusion flame was simulated, and the entropy generation due to the irreversibilities of the radiation process, the heat conduction and heat convection process, the mass diffusion process, and the chemical reaction process was calculated. The effect of the oxygen concentration in the oxidizer on the entropy generation was analyzed. The results indicated that, as the oxygen concentration in the oxidizer increases, the radiative entropy generation first increases and then decreases, and the convective and conductive entropy generation, the mass diffusion entropy generation, the chemical entropy generation, and the total entropy generation gradually increase. |
format | Online Article Text |
id | pubmed-8871081 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2022 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-88710812022-02-25 Thermodynamics Irreversibilities Analysis of Oxy-Fuel Diffusion Flames: The Effect of Oxygen Concentration Yan, Huibo Tang, Guangtong Wang, Chaoyang Li, Lujiang Zhou, Yuanke Zhang, Zhongnong Lou, Chun Entropy (Basel) Communication In studies on the combustion process, thermodynamic analysis can be used to evaluate the irreversibility of the combustion process and improve energy utilization efficiency. In this paper, the combustion process of a laminar oxy-fuel diffusion flame was simulated, and the entropy generation due to the irreversibilities of the radiation process, the heat conduction and heat convection process, the mass diffusion process, and the chemical reaction process was calculated. The effect of the oxygen concentration in the oxidizer on the entropy generation was analyzed. The results indicated that, as the oxygen concentration in the oxidizer increases, the radiative entropy generation first increases and then decreases, and the convective and conductive entropy generation, the mass diffusion entropy generation, the chemical entropy generation, and the total entropy generation gradually increase. MDPI 2022-01-28 /pmc/articles/PMC8871081/ /pubmed/35205499 http://dx.doi.org/10.3390/e24020205 Text en © 2022 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Communication Yan, Huibo Tang, Guangtong Wang, Chaoyang Li, Lujiang Zhou, Yuanke Zhang, Zhongnong Lou, Chun Thermodynamics Irreversibilities Analysis of Oxy-Fuel Diffusion Flames: The Effect of Oxygen Concentration |
title | Thermodynamics Irreversibilities Analysis of Oxy-Fuel Diffusion Flames: The Effect of Oxygen Concentration |
title_full | Thermodynamics Irreversibilities Analysis of Oxy-Fuel Diffusion Flames: The Effect of Oxygen Concentration |
title_fullStr | Thermodynamics Irreversibilities Analysis of Oxy-Fuel Diffusion Flames: The Effect of Oxygen Concentration |
title_full_unstemmed | Thermodynamics Irreversibilities Analysis of Oxy-Fuel Diffusion Flames: The Effect of Oxygen Concentration |
title_short | Thermodynamics Irreversibilities Analysis of Oxy-Fuel Diffusion Flames: The Effect of Oxygen Concentration |
title_sort | thermodynamics irreversibilities analysis of oxy-fuel diffusion flames: the effect of oxygen concentration |
topic | Communication |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8871081/ https://www.ncbi.nlm.nih.gov/pubmed/35205499 http://dx.doi.org/10.3390/e24020205 |
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