The pulsating nature of bubble boiling of subcooled water flow during cooling of a metal heater

This paper presents the results of an experimental study of the subcooled water flow boiling on the surface of a metal rod 12 mm in diameter. As a result of the rapid heat release that occurs when an electric current is pulsed through a metal heater, the latter reaches certain temperature levels abo...

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Autor principal:	A.A Levin
Formato:	article
Lenguaje:	EN FR
Publicado:	EDP Sciences 2021
Materias:	Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/ff950ac634e845418d3fc19901289009
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spelling	oai:doaj.org-article:ff950ac634e845418d3fc199012890092021-11-12T11:44:34ZThe pulsating nature of bubble boiling of subcooled water flow during cooling of a metal heater2267-124210.1051/e3sconf/202132101013https://doaj.org/article/ff950ac634e845418d3fc199012890092021-01-01T00:00:00Zhttps://www.e3s-conferences.org/articles/e3sconf/pdf/2021/97/e3sconf_icchmt2021_01013.pdfhttps://doaj.org/toc/2267-1242This paper presents the results of an experimental study of the subcooled water flow boiling on the surface of a metal rod 12 mm in diameter. As a result of the rapid heat release that occurs when an electric current is pulsed through a metal heater, the latter reaches certain temperature levels above the saturation temperature of water at the corresponding pressure (p = 0.17 MPa). In a system formed by a cold liquid and a heated solid body, the process of intense heat exchange begins, the cooling rate of the metal in which reaches its maximum when the nucleate boiling is realized. Interest in such scenarios is remaining high and is caused by the need for quantitative prediction of the characteristics of nucleate boiling and the existence boundaries of this boiling mode. As well-known, nucleate boiling is limited from above by the onset of film boiling and from below by the required surface temperature for which a significant number of nucleation centers are activated. The pressure waves arising during film boiling have a significant amplitude, as a result of which special conditions of interphase interactions may occur. The results of the study showed that self-oscillating pressure pulsations may occur which is associated with the nucleate boiling in an annular channel.A.A LevinEDP SciencesarticleEnvironmental sciencesGE1-350ENFRE3S Web of Conferences, Vol 321, p 01013 (2021)
institution	DOAJ
collection	DOAJ
language	EN FR
topic	Environmental sciences GE1-350
spellingShingle	Environmental sciences GE1-350 A.A Levin The pulsating nature of bubble boiling of subcooled water flow during cooling of a metal heater
description	This paper presents the results of an experimental study of the subcooled water flow boiling on the surface of a metal rod 12 mm in diameter. As a result of the rapid heat release that occurs when an electric current is pulsed through a metal heater, the latter reaches certain temperature levels above the saturation temperature of water at the corresponding pressure (p = 0.17 MPa). In a system formed by a cold liquid and a heated solid body, the process of intense heat exchange begins, the cooling rate of the metal in which reaches its maximum when the nucleate boiling is realized. Interest in such scenarios is remaining high and is caused by the need for quantitative prediction of the characteristics of nucleate boiling and the existence boundaries of this boiling mode. As well-known, nucleate boiling is limited from above by the onset of film boiling and from below by the required surface temperature for which a significant number of nucleation centers are activated. The pressure waves arising during film boiling have a significant amplitude, as a result of which special conditions of interphase interactions may occur. The results of the study showed that self-oscillating pressure pulsations may occur which is associated with the nucleate boiling in an annular channel.
format	article
author	A.A Levin
author_facet	A.A Levin
author_sort	A.A Levin
title	The pulsating nature of bubble boiling of subcooled water flow during cooling of a metal heater
title_short	The pulsating nature of bubble boiling of subcooled water flow during cooling of a metal heater
title_full	The pulsating nature of bubble boiling of subcooled water flow during cooling of a metal heater
title_fullStr	The pulsating nature of bubble boiling of subcooled water flow during cooling of a metal heater
title_full_unstemmed	The pulsating nature of bubble boiling of subcooled water flow during cooling of a metal heater
title_sort	pulsating nature of bubble boiling of subcooled water flow during cooling of a metal heater
publisher	EDP Sciences
publishDate	2021
url	https://doaj.org/article/ff950ac634e845418d3fc19901289009
work_keys_str_mv	AT aalevin thepulsatingnatureofbubbleboilingofsubcooledwaterflowduringcoolingofametalheater AT aalevin pulsatingnatureofbubbleboilingofsubcooledwaterflowduringcoolingofametalheater
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The pulsating nature of bubble boiling of subcooled water flow during cooling of a metal heater

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