Dual port vapor injected compression: In-system testing versus test stand testing, and mapping of results

Christian K. Bach, Eckhard A. Groll, James E. Braun and W. Travis Horton

Renewable Energy, 2016, vol. 87, issue P1, 819-833

Abstract: This paper introduces the differences of in-system testing of a dual-port vapor injected compressor as compared to test stand testing and presents the performance results. Single-port vapor injected compression has been studied previously, typically using scroll compressors. Single-port vapor injection employs one port with a single intermediate injection pressure, while dual-port vapor injection uses two ports at different angular locations, leading to two intermediate pressure levels for the injected vapor. The main differences between in-system testing and test stand testing can be found in suction and injection superheat values, discharge temperature, and range of injection flow rates. Dimensionless PI-type mappings are introduced that can be used for system simulation.

Keywords: Vapor-injected compression; Mapping; Compressor; Vapor injection; Cold climate heat pump (search for similar items in EconPapers)
Date: 2016
References: View complete reference list from CitEc
Citations: View citations in EconPapers (2)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:renene:v:87:y:2016:i:p1:p:819-833

DOI: 10.1016/j.renene.2015.08.076

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