Study on a Reversible Thermal Panel for spacecraft (detailed design based on parametric studies and experimental verification)

Hosei Nagano, Akira Ohnishi, Yuji Nagasaka, Akira Nagashima

Research output: Contribution to journalArticle

2 Citations (Scopus)


This paper describes a new passive thermal control device - a Reversible Thermal Panel (RTP), which changes its function reversibly from a radiator to solar absorber by deploying/stowing the radiator/absorber reversible fin. Parametric studies were conducted and the RTP configuration which satisfies the thermal requirements was determined. The RTP engineering model was fabricated using highly oriented graphite sheets, honeycomb base plate, and shape memory alloy. The heat rejection performances and autonomous thermal controllability were evaluated by thermal vacuum tests. The test results show the excellent performances of heat rejection, absorption, and autonomous thermal control for the RTP.

Original languageEnglish
Pages (from-to)464-481
Number of pages18
JournalHeat Transfer - Asian Research
Issue number7
Publication statusPublished - 2006 Nov 1



  • Deployable radiator
  • Graphite sheet
  • Light weight
  • Reversible thermal panel
  • Rotary actuator
  • Shape memory alloy
  • Solar absorber
  • Spacecraft thermal control

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Fluid Flow and Transfer Processes

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