Cargando…

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...

Descripción completa

Detalles Bibliográficos
Autores principales: Yan, Huibo, Tang, Guangtong, Wang, Chaoyang, Li, Lujiang, Zhou, Yuanke, Zhang, Zhongnong, Lou, Chun
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2022
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
_version_ 1784656911126233088
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
work_keys_str_mv AT yanhuibo thermodynamicsirreversibilitiesanalysisofoxyfueldiffusionflamestheeffectofoxygenconcentration
AT tangguangtong thermodynamicsirreversibilitiesanalysisofoxyfueldiffusionflamestheeffectofoxygenconcentration
AT wangchaoyang thermodynamicsirreversibilitiesanalysisofoxyfueldiffusionflamestheeffectofoxygenconcentration
AT lilujiang thermodynamicsirreversibilitiesanalysisofoxyfueldiffusionflamestheeffectofoxygenconcentration
AT zhouyuanke thermodynamicsirreversibilitiesanalysisofoxyfueldiffusionflamestheeffectofoxygenconcentration
AT zhangzhongnong thermodynamicsirreversibilitiesanalysisofoxyfueldiffusionflamestheeffectofoxygenconcentration
AT louchun thermodynamicsirreversibilitiesanalysisofoxyfueldiffusionflamestheeffectofoxygenconcentration