图书馆订阅: Guest
Begell Digital Portal Begell 数字图书馆 电子图书 期刊 参考文献及会议录 研究收集
多孔介质期刊
影响因子: 1.752 5年影响因子: 1.487 SJR: 0.43 SNIP: 0.762 CiteScore™: 2.3

ISSN 打印: 1091-028X
ISSN 在线: 1934-0508

多孔介质期刊

DOI: 10.1615/JPorMedia.v12.i10.20
pages 939-954

Highly Porous Metal Foams: Effective Thermal Conductivity Measurement Using a Photothermal Technique

Mourad Fetoui
Ecole Nationale d'Ingénieurs de Monastir, Laboratoire d'Etudes des Systèmes Thermiques et Energétiques, Avenue Ibn Eljazzar, 5019 Monastir, Tunisie
Fethi Albouchi
ISIMM
Fabrice Rigollet
Aix Marseille Univ, CNRS, IUSTI
Sassi Ben Nasrallah
Laboratoire d'Études des Systèmes Thermiques et Énergétiques, Ecole Nationale d'Ingénieurs de Monastir, Monastir 5019 Tunisie

ABSTRACT

The effective thermal conductivity of highly porous metal foams is measured using a photothermal method with a crenel heating excitation. This method is based on a nondestructive technique. The foam is sandwiched between two thin aluminum plates. The front face of the three-layered structure is submitted to a heat flux and the temperature rise on the rear face is recorded using an infrared camera. Measurements are reported on several foams. The parameter identification is performed by the minimization of the ordinary least squares objective function comparing the measured temperatures to the response of a thermal model function of thermophysical parameters, built with thermal quadruple formalism. The used iterative algorithm is based on the Gauss-Newton method. The obtained results are compared to the literature values and a good agreement is noted.


Articles with similar content:

Measurement of the Effective Thermal Conductivity of Powders Using a Three-Layer Structure
Journal of Porous Media, Vol.10, 2007, issue 6
Sassi Ben Nasrallah, Fethi Albouchi, Foued Mzali
On optimal optical properties for near-field radiative heat transfer maximization between two semi-infinite planes at room temperature
ICHMT DIGITAL LIBRARY ONLINE, Vol.0, 2013, issue
Jeremie Drevillon, Karl Joulain, Younes Ezzahri, Elyes Nefzaoui
ANISOTROPY OF THERMAL CONDUCTIVITY OF SOLIDS AT HIGH TEMPERATURE: A METHOD USING A SOLAR FURNACE
International Heat Transfer Conference 10, Vol.4, 1994, issue
A. Ferriere, M. Lebrun, T. Boumaza
ONE-DIMENSIONAL APPROXIMATE ANALYTICAL SOLUTIONS OF HEAT CONDUCTION IN SEMI-INFINITE SOLIDS WITH TEMPERATURE-DEPENDENT PROPERTIES
Hybrid Methods in Engineering, Vol.3, 2001, issue 4
Gaetano Barbaro, Nicola Bianco, Oronzio Manca
Estimation of Blood Perfusion Rate and Its Temperature Dependency in Human Abdominal Area under Heating Condition
International Heat Transfer Conference 15, Vol.6, 2014, issue
Takashi Seki, Junnosuke Okajima, Atsuki Komiya, Shigenao Maruyama, Tessai Sugiura, Takahiro Okabe