Heat rejection/retention characteristics of a re-deployable radiator for venus exploration mission

Hosei Nagano, Akira Ohnishi, Ken Higuchi, Kan Matsumoto, Yu Oikawa, Kazuki Watanabe, Yuji Nagasaka

Research output: Contribution to journalConference articlepeer-review


This paper experimentally and analytically evaluates the heat rejection/retention performance of a reversible thermal panel (RTP) which can autonomously change thermal performance depending on its own thermal conditions. The RTP is considered as a candidate methodology for thermal control of Venus mission, PLANET-C, in order to save survival heater power. An RTP prototype was tested and evaluated. An analytical thermal model of the RTP was also developed, and basic performances of the RTP were evaluated. Thermal performance of the RTP when applied to the longwave camera (LIR) of the PLANET-C was evaluated with an analytical thermal model as functions of fin deployment directions and rear surface properties of the RTP's fin. The analytical results showed that the RTP can save heater power in comparison to a conventional radiator.

Original languageEnglish
JournalSAE Technical Papers
Publication statusPublished - 2007
Externally publishedYes
Event37th International Conference on Environmental Systems, ICES 2007 - Chicago, IL, United States
Duration: 2007 Jul 92007 Jul 12

ASJC Scopus subject areas

  • Automotive Engineering
  • Safety, Risk, Reliability and Quality
  • Pollution
  • Industrial and Manufacturing Engineering


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