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Journal of Engineering Physics and Thermophysics

, Volume 66, Issue 2, pp 115–125 | Cite as

Control of radiation heat transfer through a composite window featuring ER fluid: A conceptual investigation

  • C. Zhang
  • J. R. Lloyd
Article

Abstract

Radiation heat transfer control through the application of an electric field upon an Electroheological (ER) fluid based composite material is an innovative new area of research. A conceptual experiment has been conducted to study radiation heat transfer through a composite window featuring an ER fluid. The composite window is composed of two thin glass plates with a layer of ER fluid contained between them. The glass walls were transparent except for a very thin coating of an electric-conductive film which enabled the inside of the glass surfaces to serve as electrodes. The ER fluid was contained between the glass surfaces and consisted of a suspension of micron sized crystalline zeolite particles in a silicon oil. This study has demonstrated the unique capability of ER fluids to regulate and control radiation heat transfer via transmittance measurements. A semi-empirical model is developed from the experimental data to correlate the dependence of radiation transmission through ER fluids based on several physical parameters (fv, V*, and L). This model agrees reasonably well with the measured data. The results obtained in this study are very important to those concerned with the development of a thermally smart material for heat transfer control.

Keywords

Heat Transfer Zeolite Glass Surface Radiation Heat Transfer Smart Material 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Plenum Publishing Corporation 1995

Authors and Affiliations

  • C. Zhang
    • 1
  • J. R. Lloyd
    • 1
  1. 1.Heat Transfer Laboratory, Department of Mechanical EngineeringMichigan State UniversityEast LansingUSA

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