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HORSKÝ, J. KVAPIL, J. KENETH, B. MORAVEC, R.
Originální název
Determination of Thermal Contact Conductance Based on Unsteady Temperature Measurement
Typ
článek ve sborníku ve WoS nebo Scopus
Jazyk
angličtina
Originální abstrakt
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.
Klíčová slova
thermal contact conductance, thermal contact resistance, heat transfer coefficient
Autoři
HORSKÝ, J.; KVAPIL, J.; KENETH, B.; MORAVEC, R.
Rok RIV
2015
Vydáno
4. 5. 2015
ISBN
978-1-935117-46-9
Kniha
AISTech 2015
ISSN
1551-6997
Periodikum
AIST Association for Iron&Steel Technology
Ročník
3
Stát
Spojené státy americké
Strany od
3519
Strany do
3525
Strany počet
7
BibTex
@inproceedings{BUT114798, author="HORSKÝ, J. and KVAPIL, J. and KENETH, B. and MORAVEC, R.", title="Determination of Thermal Contact Conductance Based on Unsteady Temperature Measurement", booktitle="AISTech 2015", year="2015", journal="AIST Association for Iron&Steel Technology", volume="3", pages="3519--3525", isbn="978-1-935117-46-9", issn="1551-6997" }