Application of the temperature oscillation method in heat transfer measurements at the wall of an agitated vessel

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F18%3A00322215" target="_blank" >RIV/68407700:21220/18:00322215 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.14311/AP.2018.58.0144" target="_blank" >http://dx.doi.org/10.14311/AP.2018.58.0144</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.14311/AP.2018.58.0144" target="_blank" >10.14311/AP.2018.58.0144</a>

Result language

angličtina

Original language name

Application of the temperature oscillation method in heat transfer measurements at the wall of an agitated vessel

Original language description

The Temperature Oscillation Infra-Red Thermography (TOIRT) was used to measure convective heat transfer coefficients at the inner vertical wall of an agitated and baffled vessel. Two impellers were used: an axial six-blade impeller with pitched blades and the Rushton turbine. The TOIRT method represents an indirect method based on measuring the phase shift between the oscillating heat flux applied to one side of the heat transfer surface and the wall temperature response monitored by a contactless infra-red camera at the same side. On the basis of this phase shift, the TOIRT method can indirectly evaluate the heat transfer coefficient on the other side of the heat transfer surface. Two forms of experimental results are presented in this paper. The first one describes graphical dependencies of the local Nusselt number on the dimensionless distance from the vessel bottom for various Reynolds numbers. The second form describes the mean Nusselt number along the wall as a function of the Reynolds number.

Czech name

—

Czech description

—

Type

J_SC - Article in a specialist periodical, which is included in the SCOPUS database

CEP classification

—

OECD FORD branch

20301 - Mechanical engineering

Project

<a href="/en/project/GA14-18955S" target="_blank" >GA14-18955S: Experimental and theoretical study of the convective heat transfer in turbulent swirling impinging jet.</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Acta Polytechnica

ISSN

1210-2709

e-ISSN

—

Volume of the periodical

52

Issue of the periodical within the volume

2

Country of publishing house

CZ - CZECH REPUBLIC

Number of pages

11

Pages from-to

144-154

UT code for WoS article

000432027700007

EID of the result in the Scopus database

2-s2.0-85055010192