Performance of a Custom Asymmetric Screw Compressor

Paper #:
  • 2016-01-1996

Published:
  • 2016-09-20
Citation:
Markham, D. and Cutbirth, J., "Performance of a Custom Asymmetric Screw Compressor," SAE Technical Paper 2016-01-1996, 2016, https://doi.org/10.4271/2016-01-1996.
Pages:
8
Abstract:
Modern military electronics systems are generating increasingly higher heat loads, necessitating larger capacity thermal management systems (TMSs). These high-capacity TMSs must meet the strict size and weight requirements of these advancing platforms. Commercially available compressor technology can generate sufficient cooling for these systems; however, they are too heavy and expansive. Mainstream Engineering Corporation has developed a compact, lightweight, high-speed screw compressor that can provide a large cooling capacity with a small package envelope. The compressor housing material is light-weight with a low coefficient of thermal expansion (CTE), allowing a wide operating temperature range. The compressor, with a nominal cooling capacity from 20 kW to 60 kW, was tested over a range of saturated suction conditions, pressure ratios, rotational speeds, and oil lubrication conditions. From this expansive data set, empirical correlations were generated for refrigerant mass flow rate, compressor power, and cooling capacity. The developed correlations agree strongly with tested data, validating measured compressor performance.
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