About: Analysis of heat transfer in a vessel with helical pipe coil and multistage impeller

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Results of heat transfer coefficient measurements in an agitated vessel heated or cooled by the liquid media flowing in a helical pipe coil are presented in this paper. The multistage impeller made of two pitched six-blade impellers and adjustable clearance was used in a vessel with conical bottom. The transient method based on measuring the temperature dependency on time and solving the unsteady enthalpy balance was used to determine the heat transfer coefficients between the agitated liquid and the helical pipe coil. The results are summarized by the Nusselt number correlations, which describe the dependency on the impeller Reynolds number. The second part of this paper introduces a theoretical analysis of the flow in the liquid batch near the helical pipe coil. Based on the known pumping capacity of the multistage impeller, the characteristic velocity near the helical pipe coil can be evaluated. This characteristic velocity can be then used to determine the Nusselt number describing the heat transfer in a flow around a cylinder with the same cross-section profile as the helical pipe coil. A clear correlation between this Nusselt number and the integral Nusselt number is presented in this paper and introduces an alternative approach for prediction of heat transfer characteristics on the basis of hydrodynamic parameters describing an agitated system. Results of heat transfer coefficient measurements in an agitated vessel heated or cooled by the liquid media flowing in a helical pipe coil are presented in this paper. The multistage impeller made of two pitched six-blade impellers and adjustable clearance was used in a vessel with conical bottom. The transient method based on measuring the temperature dependency on time and solving the unsteady enthalpy balance was used to determine the heat transfer coefficients between the agitated liquid and the helical pipe coil. The results are summarized by the Nusselt number correlations, which describe the dependency on the impeller Reynolds number. The second part of this paper introduces a theoretical analysis of the flow in the liquid batch near the helical pipe coil. Based on the known pumping capacity of the multistage impeller, the characteristic velocity near the helical pipe coil can be evaluated. This characteristic velocity can be then used to determine the Nusselt number describing the heat transfer in a flow around a cylinder with the same cross-section profile as the helical pipe coil. A clear correlation between this Nusselt number and the integral Nusselt number is presented in this paper and introduces an alternative approach for prediction of heat transfer characteristics on the basis of hydrodynamic parameters describing an agitated system. (en)
Title	Analysis of heat transfer in a vessel with helical pipe coil and multistage impeller Analysis of heat transfer in a vessel with helical pipe coil and multistage impeller (en)
skos:prefLabel	Analysis of heat transfer in a vessel with helical pipe coil and multistage impeller Analysis of heat transfer in a vessel with helical pipe coil and multistage impeller (en)
skos:notation	RIV/68407700:21220/14:00222237!RIV15-GA0-21220___
http://linked.open...avai/riv/aktivita	P
http://linked.open...avai/riv/aktivity	P(GA14-18955S)
http://linked.open...iv/cisloPeriodika	12
http://linked.open...vai/riv/dodaniDat	2015
http://linked.open...aciTvurceVysledku	Fořt, Ivan Jirout, Tomáš Dostál, Martin Petera, Karel Věříšová, Marcela
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	České vysoké učení technické v Praze / Fakulta strojní
http://linked.open...dnocenehoVysledku	2685
http://linked.open...ai/riv/idVysledku	RIV/68407700:21220/14:00222237
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	heat transfer; agitated vessel; multistage impeller; helical pipe coil (en)
http://linked.open.../riv/klicoveSlovo	heat transfer agitated vessel multistage impeller helical pipe coil
http://linked.open...odStatuVydavatele	CA - Kanada
http://linked.open...ontrolniKodProRIV	[74B558B745AC]
http://linked.open...i/riv/nazevZdroje	Canadian Journal of Chemical Engineering
http://linked.open...in/vavai/riv/obor	JP
http://linked.open...ichTvurcuVysledku	5 (xsd:int)
http://linked.open...cetTvurcuVysledku	5 (xsd:int)
http://linked.open...vavai/riv/projekt	Experimentální a teoretická studie konvektivního přenosu tepla v rotujícím turbulentním impaktním proudu.
http://linked.open...UplatneniVysledku	2014
http://linked.open...v/svazekPeriodika	92
http://linked.open...iv/tvurceVysledku	Dostál, Martin Fořt, Ivan Jirout, Tomáš Petera, Karel Věříšová, Marcela
http://linked.open...ain/vavai/riv/wos	000345295000012
issn	0008-4034
number of pages	7 (xsd:int)
http://bibframe.org/vocab/doi	10.1002/cjce.22033
http://localhost/t...ganizacniJednotka	21220

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