An Analytical and Experimental Evaluation of Shadow Shields and Their Support Members

  • R. J. Stochl
  • R. J. Boyle
Conference paper
Part of the Advances in Cryogenic Engineering book series (ACRE, volume 18)


For long-duration interplanetary missions involving cryogenic propellants, it becomes necessary to reduce the heat flux into propellant tanks to extremely low values. Radiation is a significant mode of heat transfer in space. Two forms of radiation barriers which effectively reduce radiant heat transfer are multilayer insulation, which consists of many closely spaced, highly reflective layers separated by low-conducting spacers, and shadow shields, consisting of few layers but spaced farther apart to allow heat to escape to the surrounding space. Studies have shown that if the major radiant heat load is unidirectional, such as for a sun-oriented spacecraft, shadow shields can provide performance superior to multilayer insulation.


Heat Transfer Rate Radiant Heat Transfer Test Tank Axial Temperature Gradient Heat Transfer Result 
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    R. H. Knoll and E. R. Bartoo, “Experimental Studies on Shadow Shields for Thermal Protection of Cryogenic Tank in Space,” NASA TN D-4887, 1968.Google Scholar
  2. 2.
    R. J. Boyle and R. H. Knoll, “Thermal Analysis of Shadow Shields and Structural Members in a Vacuum,” NASA TN D-4876, 1968.Google Scholar
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    R. S. Dummer and W. T. Breckenridge, Jr., “Radiation Configuration Factors Program,” Rept. ERR AN-224, General Dynamics/Astronautics, February 1963.Google Scholar
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    D. R. Lewis, J. D. Gaski, and L. R. Thomson, “Chrysler Improved Numerical Differencing Analyzer for Third Generation Computers,” Rept. TN-AP-67–287, Chrysler Corp. (NASA CR-99595), October 20, 1967.Google Scholar

Copyright information

© Springer Science+Business Media New York 1973

Authors and Affiliations

  • R. J. Stochl
    • 1
  • R. J. Boyle
    • 1
  1. 1.NASA Lewis Research CenterClevelandUSA

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