Sequencing & Control Of Compressors

Virtually every built-up refrigeration system used in commercial or industrial applications has multiple compressors available for operation to meet loads. One of the challenges in designing and operating a system with multiple compressors is deciding how best to sequence their controls to meet vari...

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Bibliographic Details
Published inASHRAE journal Vol. 55; no. 11; pp. 14 - 30
Main Author Reindl, Douglas T
Format Journal Article
LanguageEnglish
Published New York American Society of Heating, Refrigeration and Air Conditioning Engineers, Inc 01.11.2013
Subjects
Cold storage
Commercial markets
Compressors
Control equipment
Control systems
Reciprocating compressors
Refrigeration
Screws
Sequencing
Strategy
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Summary:Virtually every built-up refrigeration system used in commercial or industrial applications has multiple compressors available for operation to meet loads. One of the challenges in designing and operating a system with multiple compressors is deciding how best to sequence their controls to meet variable refrigeration loads while avoiding inefficient compressor performance at part-load to maintain high system efficiency. Here, Reindl discusses typical part-load efficiency characteristics for screw and reciprocating compressors commonly found in built-up industrial refrigeration systems. It includes recommendations for sequencing and control strategies that enable efficient system operation.
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ISSN:0001-2491
1943-6637