Linear compressors for electronics cooling: Energy recovery and its benefits

Craig R. Bradshaw, Eckhard A. Groll, Suresh V. Garimella

Research output: Contribution to journalArticlepeer-review

Abstract

A comprehensive model of a linear compressor for electronics cooling was previously presented by Bradshaw et al. (2011) then enhanced and used for a sensitivity analysis of the leakage gap, eccentricity, and piston geometry by Bradshaw et al. (2013). The current work utilizes the previously developed model to explore the energy recovery characteristics of a linear compressor as compared to those of a reciprocating compressor. The impact of dead (clearance) volume on both a linear and reciprocating compressor is analyzed. In contrast to a reciprocating compressor the overall isentropic efficiency of the linear compressor remains relatively unaffected by an increase in dead volume up to a certain point. This behavior is attributed to the ability of the linear compressor to recapture the energy of the compressed gas during the expansion process. This characteristic behavior allows a linear compressor to be used for efficient capacity control from roughly 35-100%.

Original languageEnglish (US)
Pages (from-to)2007-2013
Number of pages7
JournalInternational Journal of Refrigeration
Volume36
Issue number7
DOIs
StatePublished - Nov 2013
Externally publishedYes

Keywords

  • Capacity control
  • Electronics cooling
  • Linear compressor
  • Reciprocating compressor

ASJC Scopus subject areas

  • Building and Construction
  • Mechanical Engineering

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