Determination of Thermal Contact Conductance Based on Unsteady Temperature Measurement

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F15%3APU114280" target="_blank" >RIV/00216305:26210/15:PU114280 - isvavai.cz</a>

Result on the web

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DOI - Digital Object Identifier

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Result language

angličtina

Original language name

Determination of Thermal Contact Conductance Based on Unsteady Temperature Measurement

Original language description

Thermal contact conductance (TCC) is a parameter which describes heat flow Thermal contact conductance (TCC) is a parameter which describes heat flow between solid bodies in contact with different temperatures and plays an important role in a numerical simulation of heat transfer in various areas of technology. The TCC has SI units in W/m2 .K. Many empirical and semi-empirical correlations to predict TCC were published. There are three core models: elastic model (Mikic) [1], plastic model (Cooper, Mikic, Yovanovich) [2] and elastoplastic model (Sridhar, Yovanovich) [3]. These models are widely used to simulate thermal contact between bodies, eg. Comsol Multiphysics uses these three methods. But Fieberg [4] shows that these methods are only valid with contact pressure up to 7 MPa and temperature up to 500 °C. Also with recently developed numerical simulations in steelmaking and continuous casting, theoretically derived TCCs are not accurate enough and there is a need for experimentally measured values of TCC. The Heat Transfer and Fluid Flow Laboratory of Brno Technical University conducted experiments to determine TCC between two specimens by a device which allows the experimental determination of the TCC as a function of different contact pressure, temperature, surface morphology etc. The temperature history of bodies during an experiment is measured by thermocouples which are then used to estimate time dependent values of TCC by an inverse heat conduction calculation.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20303 - Thermodynamics

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Publication year

2015

Confidentiality

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

Article name in the collection

AISTech 2015

ISBN

978-1-935117-46-9

ISSN

1551-6997

e-ISSN

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Number of pages

7

Pages from-to

3519-3525

Publisher name

Neuveden

Place of publication

Neuveden

Event location

Clevelan, Ohio

Event date

May 4, 2015

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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