Determination of thermal contact resistance from transient temperature measurements

Fieberg, C.; Kneer, Reinhold

doi:10.1016/j.ijheatmasstransfer.2007.05.004

Cited by 122 publications

(52 citation statements)

References 9 publications

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“…This corresponds quite well with our experiments, and also with Fieberg 3 , but in our case, directly after the contact, it takes some time (around 0.3-0.5 s) to stabilize the level of thermal contact conductance. This is caused by vibrations after the sudden contact of the temperature sensor and the heated test plate.…”

Section: Resultssupporting

confidence: 93%

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Estimation of the thermal contact conductance from unsteady temperature measurements

Kvapil¹,

Pohanka²,

Horský³

2015

Mater. Tehnol.

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Thermal contact conductance is an important parameter for describing the heat transfer between two bodies. When two solids are put in contact and heat transfer occurs, a temperature drop is observed at the interface between the solids. This is caused by an imperfect joint, which occurs because the real surfaces are not perfectly smooth and flat. This paper describes an experimental device for the evaluation of the thermal contact conductance, which was designed and fabricated in the Heat Transfer and Fluid Flow Laboratory. This device was built mainly for simulating metal-forming conditions, which include high pressures (up to 360 MPa) and high temperatures (up to 1200°C) in the contact of two solids. The principle of this investigation is the unsteady measurement of the temperatures of two solids that are put in contact under different conditions. The surface temperature and thermal contact conductance can be calculated from the measured temperatures by an inverse heat-transfer task. The measured temperature history and the calculated values of the thermal contact conductance for pilot tests are presented in this paper. Keywords: thermal contact conductance, inverse heat conduction problem, heat-transfer coefficient Kontaktna toplotna prevodnost je pomemben parameter za opisovanje prehoda toplote med dvema telesoma. Ko sta dve trdni snovi v stiku, se pri prenosu toplote opazi zni`anje temperature na stiku med dvema trdnima snovema. To nastane zaradi nepopolnega stika, ker realne povr{ine niso popolnoma gladke in ravne. Ta~lanek opisuje eksperimentalno napravo za oceno kontaktnega prevajanja toplote, konstruirane v laboratoriju za prenos toplote in toka teko~in. Naprava je bila zgrajena predvsem za simulacijo razmer pri preoblikovanju materialov, ki vklju~ujejo velik tlak (do 360 MPa) in visoke temperature (do 1200°C) na stiku med dvema trdnima materialoma. Princip teh raziskav je neravnote`no merjenje temperature dveh trdnih snovi, ki sta v kontaktu v razli~nih razmerah. Temperatura povr{ine in kontaktna prevodnost toplote se lahko izra~unata iz izmerjenih temperatur z upo{tevanjem inverznega prenosa toplote. V tem~lanku sta predstavljeni zgodovina merjenja temperature in izra~unane vrednosti kontaktne toplotne prevodnosti pri opravljenih preizkusih. Klju~ne besede: toplotna prevodnost kontakta, problem inverznega prenosa toplote, koeficient toplotne prevodnosti

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Section: Resultssupporting

confidence: 93%

“…3 The two bodies are in contact and their ends are cooled and heated. The temperature distribution is measured using thermocouples inside the bodies.…”

Section: Methods Of Measurementmentioning

confidence: 99%

Estimation of the thermal contact conductance from unsteady temperature measurements

Kvapil¹,

Pohanka²,

Horský³

2015

Mater. Tehnol.

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“…Fieberg et Kneer [Fieberg et Kneer, 2008] ont réalisé une étude sur l'estimation de la conductance de .contact dans le temps en fonction de la pression exercée sur le contact. Cette étude avait pour but de quantifier l'impact de la pression sur le contact pour l'appli quer au cas des moteurs où l'on a souvent une grande pression, environ 250 MPa.…”

Section: Bibliographieunclassified

“…-la conductance thermique de contact n'étant pas uniforme sur la surface, il ne sera pas possible de se baser sur les études suivantes : [Atchonouglo et al, 2008] [Shojaeefard et al, 2009] [Fieberg et Kneer, 2008]. …”

Section: Bibliographieunclassified

Prédiction par transfert inverse d’un champ de conductance thermique de contact dans un mur de réacteur métallurgique

Rousseau

Lacroix

Désilets

2014

Mechanics & Industry

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“…In general, the measurement methods of TCR can be divided into steady state method [1] and transient state method [2]. In the study of Bi et al [3], the stainless steel, copper, and AIN (Aluminum Nitride) are used as specimen and LPM (laser photothermal method) which is one of the transient methods was employed to measure the TCR.…”

Section: Introductionmentioning

confidence: 99%

Measurement of thermal contact resistance at Cu-Cu interface

Kim¹,

Choi²

2013

Progress in Superconductivity and Cryogenics

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The thermal contact resistance (TCR) is one of the important components in the cryogenic systems. Especially, cryogenic measurement devices using a cryocooler can be affected by TCR because the systems have to consist of several metal components in contact with each other for heat transferring to the specimen without cryogen. Therefore, accurate measurement and understanding of TCR is necessary for the design of cryogenic measurement device using a cryocooler. The TCR occurs at the interface between metals and it can be affected by variable factors, such as roughness of metal surface, contact area and contact pressure. In this study, we designed TCR measurement system at various temperatures using a cryocooler as a heat sink and used steady state method to measure the TCR between metals. The copper is selected as a specimen in the experiment because it is widely used as a heat transfer medium in the cryogenic measurement devices. The TCR between Cu and Cu is measured for various temperatures and contact pressures. The effect of the interfacial materials on the TCR is also investigated.

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Determination of thermal contact resistance from transient temperature measurements

Cited by 122 publications

References 9 publications

Estimation of the thermal contact conductance from unsteady temperature measurements

Estimation of the thermal contact conductance from unsteady temperature measurements

Prédiction par transfert inverse d’un champ de conductance thermique de contact dans un mur de réacteur métallurgique

Measurement of thermal contact resistance at Cu-Cu interface

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