Design and Ground Test Results of a Variable Emittance Radiator

The Smart Radiation Device (SRD) which is made from a ceramic material is a thin and light tile. The material undergoes a metal-insulator transition at around 290K and this allows the infrared emissivity of the device to change from low to high as the temperature is increased from 175K to 375K. This is beneficial for thermal control applications on spacecraft. For example, bonded only to the external surface of the spacecraft's instruments, SRD controls the heat radiated to deep space without electrical instruments or mechanical parts used for changing emissivity. It reduces the energy consumption of the electrical heater for thermal control, and decreases the weight and the cost of the thermal control system. In this paper, the design of the new material for SRD and the ground test results such as the radiation tests of electrons and UV will be described.

• Record URL:
  • https://doi.org/10.4271/2000-01-2277
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Tachikawa, Sumitaka
  • Ohnishi, Akira
  • Shimazaki, Kazunori
  • Okamoto, Akira
  • Nakamura, Yasuyuki
  • Shimakawa, Yuichi
  • Kosaka, Mayumi
  • Mori, Toru
  • Ochi, Atsushi
• Conference:
  • International Conference On Environmental Systems
  • Location: San Francisco California, United States
  • Date: 2008-6-29 to 2008-7-2
• Publication Date: 1998-7-13

Language

• English

Media Info

• Media Type: Web
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Ceramic materials; Control systems; Energy consumption; Radiation hazards
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01796427
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2000-01-2277
• Files: TRIS, SAE
• Created Date: Dec 9 2021 10:18AM