Research of thermal performance of supercritical carbon dioxide in straight pipe casing

In order to solve the problems that the irreversible loss existing in the gas cooler has a great influence on its heat transfer performance,in order to improve the thermal performance of the straight tube tube-in-tube gas cooler,the heat transfer process between carbon dioxide and cooling water in s...

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Autores principales:	Haiting CUI, Xiajie HUANG, Xinyue ZHANG, Liangrui ZHANG
Formato:	article
Lenguaje:	ZH
Publicado:	Hebei University of Science and Technology 2021
Materias:	engineering thermodynamics; supercritical carbon dioxide; casing air cooler; numerical simulation; entropy production analysis; thermal performance Technology T
Acceso en línea:	https://doaj.org/article/c8559de63d1d4479a2679bf17c00cb58
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spelling	oai:doaj.org-article:c8559de63d1d4479a2679bf17c00cb582021-11-23T07:08:59ZResearch of thermal performance of supercritical carbon dioxide in straight pipe casing1008-154210.7535/hbkd.2021yx04013https://doaj.org/article/c8559de63d1d4479a2679bf17c00cb582021-08-01T00:00:00Zhttp://xuebao.hebust.edu.cn/hbkjdx/ch/reader/create_pdf.aspx?file_no=b202104013&flag=1&journal_https://doaj.org/toc/1008-1542In order to solve the problems that the irreversible loss existing in the gas cooler has a great influence on its heat transfer performance,in order to improve the thermal performance of the straight tube tube-in-tube gas cooler,the heat transfer process between carbon dioxide and cooling water in supercritical carbon dioxide tube-in-tube gas cooler was studied.By using Fluent software and entropy generation analysis method,the temperature distribution of carbon dioxide and cooling water along the pipe length was obtained throught changing the operating pressure,carbon dioxide mass flow,cooling water mass flow and inlet temperature;according to the entropy generation analysis method of the second law of thermodynamics,the thermodynamic process in the straight pipe casing was calculated,and the entropy generation distribution along the tube length was obtained.The results show that the entropy production along the tube length increases with the increase of pressure;with the increase of carbon dioxide mass flow,the entropy production gradually decreases;with the increase of cooling water mass flow rate,the increase of entropy production is not obvious;with the increase of cooling water inlet temperature,entropy production decreases.The research result may provide some reference for the operation parameters and structure design of CO2 heat pump gas cooler,as well as for the engineering application of CO2 heat pump.Haiting CUIXiajie HUANGXinyue ZHANGLiangrui ZHANGHebei University of Science and Technologyarticleengineering thermodynamics; supercritical carbon dioxide; casing air cooler; numerical simulation; entropy production analysis; thermal performanceTechnologyTZHJournal of Hebei University of Science and Technology, Vol 42, Iss 4, Pp 424-430 (2021)
institution	DOAJ
collection	DOAJ
language	ZH
topic	engineering thermodynamics; supercritical carbon dioxide; casing air cooler; numerical simulation; entropy production analysis; thermal performance Technology T
spellingShingle	engineering thermodynamics; supercritical carbon dioxide; casing air cooler; numerical simulation; entropy production analysis; thermal performance Technology T Haiting CUI Xiajie HUANG Xinyue ZHANG Liangrui ZHANG Research of thermal performance of supercritical carbon dioxide in straight pipe casing
description	In order to solve the problems that the irreversible loss existing in the gas cooler has a great influence on its heat transfer performance,in order to improve the thermal performance of the straight tube tube-in-tube gas cooler,the heat transfer process between carbon dioxide and cooling water in supercritical carbon dioxide tube-in-tube gas cooler was studied.By using Fluent software and entropy generation analysis method,the temperature distribution of carbon dioxide and cooling water along the pipe length was obtained throught changing the operating pressure,carbon dioxide mass flow,cooling water mass flow and inlet temperature;according to the entropy generation analysis method of the second law of thermodynamics,the thermodynamic process in the straight pipe casing was calculated,and the entropy generation distribution along the tube length was obtained.The results show that the entropy production along the tube length increases with the increase of pressure;with the increase of carbon dioxide mass flow,the entropy production gradually decreases;with the increase of cooling water mass flow rate,the increase of entropy production is not obvious;with the increase of cooling water inlet temperature,entropy production decreases.The research result may provide some reference for the operation parameters and structure design of CO2 heat pump gas cooler,as well as for the engineering application of CO2 heat pump.
format	article
author	Haiting CUI Xiajie HUANG Xinyue ZHANG Liangrui ZHANG
author_facet	Haiting CUI Xiajie HUANG Xinyue ZHANG Liangrui ZHANG
author_sort	Haiting CUI
title	Research of thermal performance of supercritical carbon dioxide in straight pipe casing
title_short	Research of thermal performance of supercritical carbon dioxide in straight pipe casing
title_full	Research of thermal performance of supercritical carbon dioxide in straight pipe casing
title_fullStr	Research of thermal performance of supercritical carbon dioxide in straight pipe casing
title_full_unstemmed	Research of thermal performance of supercritical carbon dioxide in straight pipe casing
title_sort	research of thermal performance of supercritical carbon dioxide in straight pipe casing
publisher	Hebei University of Science and Technology
publishDate	2021
url	https://doaj.org/article/c8559de63d1d4479a2679bf17c00cb58
work_keys_str_mv	AT haitingcui researchofthermalperformanceofsupercriticalcarbondioxideinstraightpipecasing AT xiajiehuang researchofthermalperformanceofsupercriticalcarbondioxideinstraightpipecasing AT xinyuezhang researchofthermalperformanceofsupercriticalcarbondioxideinstraightpipecasing AT liangruizhang researchofthermalperformanceofsupercriticalcarbondioxideinstraightpipecasing
_version_	1718416849768546304

Research of thermal performance of supercritical carbon dioxide in straight pipe casing

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