Issues and Implications of the Thermal Control System on Responsive Space Missions

Abstract

One aspect that poses a significant hurdle to achieving the goals of Operationally Responsive Space (ORS) is the thermal control system (TCS). Traditionally the TCS must be vigorously designed, analyzed, tested, and optimized from the ground up for every satellite mission. This reinvention of the wheel is costly and time intensive. Current design cycles require years. Next generation satellite thermal management must be robust, modular, and scalable in order to cover a wide range of applications, orbits, and mission requirements. To provide a better understanding of the issues and implications of the TCS and to help bound the problem for the development of robust and modular thermal designs, a preliminary analysis was conducted to determine the upper and lower design bounds for a small responsive satellite. In addition, the range of external heat loads for small satellites in low earth orbit were evaluated. From this analysis, the worst hot and cold cases conditions were identified. Using these two cases, various design parameters were evaluated, three different design approaches were compared, and the feasibility of a one-size-fits-all approach was assessed.

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Document Details

Document Type
Technical Report
Publication Date
Aug 01, 2006
Accession Number
ADA460070

Entities

People

  • Andrew D. Williams
  • Scott E. Palo

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Space

DTIC Thesaurus Topics

  • Air Force Research Laboratories
  • Artificial Satellites
  • Climate Change
  • Control Systems
  • Earth Orbits
  • Heat Transfer
  • Low Earth Orbits
  • Orbits
  • Reconnaissance Satellites
  • Reliability
  • Satellite Buses
  • Small Satellites
  • Spacecraft
  • Spacecraft Orbits
  • Temperature Control
  • Thermal Conductivity
  • Thermal Switches

Readers

  • Aerospace Engineering.
  • Exercise and Sports Science.
  • Software Engineering

Technology Areas

  • Space
  • Space - Satellites