A Comparison between One- and Two-Loop ATCS Architectures Proposed for CEV
Date Published: 2009-07-12
Paper Number:2009-01-2458
DOI: 10.4271/2009-01-2458
Citation:
Ochoa, D., Vonau, W., and Ewert, M., "A Comparison between One- and Two-Loop ATCS Architectures Proposed for CEV," SAE Int. J. Aerosp. 4(1):344-350, 2011, doi:10.4271/2009-01-2458.
In an effort to help future crewed spacecraft thermal control analysts understand the characteristics of one-and two-loop Active Thermal Control Systems (ATCS), a comparison was made between the one- and two-loop ATCS architectures officially proposed for the Crew Exploration Vehicle (CEV) in Design Analysis Cycle 1 (DAC1) and DAC2, respectively. This report provides a description of each design, along with mass and power estimates derived from their respective Master Equipment List (MEL) and Power Equipment List (PEL). Since some of the components were sized independent of loop architecture (ex. coldplates and heat exchangers), the mass and power for these components were based on the MEL and PEL of the most mature design (i.e. two-loop architecture). The mass and power of the two architectures are then compared and the ability of each design to meet CEV requirements is discussed.
Purchase more technical papers and save! With TechSelect,
you decide what SAE Technical Papers you need, when you need them, and how much you want to pay.
Learn more >
