Cphts Hardware Development for the Eos Am Spacecraft Instruments

Document Number: 932239

Date Published: July 1993

Author(s):
Marc Kaylor - OAO Corp.
Edward Kroliczek - OAO Corp.
Joseph E. Fredley - Martin Marietta Astro Space

Abstract:
NASA's Earth Observing System (EOS) Program will place a series of unmanned polar- orbiting spacecraft in low-Earth orbit to support a variety of scientific and Earth-observing missions. The EOS AM spacecraft has a requirement for an advanced heat transportation system for thermal energy. A Capillary Pumped Heat Transportation System (CPHTS) using Capillary Pumped Loop (CPL) technology was selected to accommodate the instruments requiring advanced heat transport. The CPHTS is comprised of several major subassemblies: CPL Coldplate for instrument heat transfer interface; Heat Pipe Heat Exchanger (HPHX) used to exchange energy from CPL loop vapor and the radiator mounted heat pipes; Constant Conductance Heat Pipes (CCHP) used to interface with the HPHX and distribute the over the radiator area; Non-Condensable Gas Trap (NCG Trap) used to remove non-condensable gases from the subcooled CPL liquid returning from the HPHX; and Reservoir used to control liquid inventory and system temperature setpoint. This paper describes the hardware design and development for the Coldplate's, HPHX's, CCHP's, and NCG Traps

File Size: 1151K
Product Status: In Stock

See other papers presented at International Conference On Environmental Systems, July 1993, Colorado Springs, CO, USA, Session: International Conference On Environmental Systems

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