An Experimental Investigation of the Thermal Conductivity of Porous Adsorbents

Abstract

The thermal conductivities of Praseodymium-Cerium-Oxide (PCO) and Saran Carbon have been experimentally investigated using a steady-state heat transfer technique. The investigated substances are used as adsorbents in adsorption compressors being developed for spaceborne refrigeration applications. The objectives of the investigation were to determine the thermal conductivities and establish their temperature dependency. Data were collected for the PCO over a temperature range of 300 C to 600 C, and O (zero) C to 200 C for the Saran Carbon. The thermal conductivities were found to have a strong temperature dependency. In particular, the results for the PCO showed a temperature dependency indicative of some thermal radiation effects. Keywords: Thermal conductivity; Adsorbents; Space science; Space technology; Compressors; Praseodymium compounds; Thermal radiation.

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Document Details

Document Type
Technical Report
Publication Date
May 01, 1989
Accession Number
ADA217854

Entities

People

  • Joseph J. Secary

Organizations

  • Air Force Institute of Technology

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Adsorption
  • Beds (Process Engineering)
  • Compressors
  • Energy
  • Energy Transfer
  • Experimental Data
  • Heat Transfer
  • Jet Propulsion
  • Materials
  • Measurement
  • Porous Materials
  • Radiation
  • Stainless Steel
  • Steady State
  • Thermal Conductivity
  • Time Intervals
  • Vacuum Chambers

Fields of Study

  • Engineering

Readers

  • Aquatic Ecology
  • Materials Science and Engineering.
  • Solar Photovoltaics and Thermoelectric Devices.

Technology Areas

  • Space
  • Space - Hall-Effect Thruster