TPX: Two-Phase Experiment for Get Away Special G-557

Paper #:
  • 911521

Published:
  • 1991-07-01
Citation:
Delil, A., Heemskerk, J., and Supper, W., "TPX: Two-Phase Experiment for Get Away Special G-557," SAE Technical Paper 911521, 1991, https://doi.org/10.4271/911521.
Pages:
11
Abstract:
Mechanically and capillary pumped two-phase heat transport systems are currently developed to meet the high power and long transport distance requirements of thermal management systems for future spacecraft. As two-phase flow and heat transfer in a low-gravity environment is expected to (considerably) differ from terrestrial behaviour, the technology of two-phase heat transport systems and their components has to be demonstrated in orbit. Therefore a Dutch-Belgian two-phase experiment (TPX) is being developed within the ESA In-Orbit Technology Demonstration Programme TDP1. TPX concerns a two-phase ammonia system in the (5ft3, gaseous nitrogen filled) Get Away Special canister G-557. The system is a downscaled capillary pumped two-phase loop. It includes downscaled versions of mechanically pumped two-phase loop components: multichannel condensers and vapour quality sensors (plus a controllable 3-way valve for control exercises).The Critical Design Review status of TPX is discussed.
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