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The development of a screen valve for reciprocating heat pump/engine applications [dataset] Open Access

A novel screen valve with rectilinear ports is presented for use in advanced high-efficiency compressors, expanders, heat pumps or engines. The novel design aims to minimise pumping losses generated as the working gas flows through the valve by maximising the effective opening cross sectional area. In this work, various screen valve configurations have been investigated through a series of experimental tests conducted on a heavily modified research engine for high-speed, high-pressure valve testing. The valves were designed and tested to operate efficiently at both low and high engine speeds ranging between 1500 - 3000 rpm. The valve dynamics were optimised to meet two high-level criteria for performance - namely 1) high speed metric quantified by its percentage of "maximum dynamic pressure", and 2) low speed metric quantified by the valve "minimum closure angle". The valves were tested to meet the objective of avoiding any friction-locking issues associated with the valve retainer design. Multiple tests were carried out in pursuit of attaining an improved design. The work concluded that by including a carrier frame (rather than a retainer frame) and upstands on the valve seat, the valve performance was improved significantly. The best design yielded results of 50.4 % of maximum dynamic pressure and 25.1{degree sign} as minimum closure angle.

Descriptions

Resource type
Dataset
Contributors
Creator: Smallbone, Andrew 1
Ameen, Tahir 2
Roskilly, Tony 1
Carpenter, Edward 3
1 Durham University, UK
2 Newcastle University, UK
3 Isentropic Ltd, UK
Funder
Engineering and Physical Sciences Research Council
Research methods
Other description
Keyword
Screen valves
Heat pumps
Reciprocating compressors
Reciprocating engines
Subject
Location
Language
Cited in
Identifier
ark:/32150/r1fb494841v
doi:10.15128/r1fb494841v
Rights
Creative Commons Attribution 4.0 International (CC BY)

Publisher
Durham University
Date Created

File Details

Depositor
A.J. Smallbone
Date Uploaded
Date Modified
16 September 2020, 11:09:08
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File format: vnd.ms-excel (Microsoft Excel 2007+, OpenDocument Text)
Mime type: application/vnd.ms-excel
File size: 21507
Last modified: 2020:09:16 11:50:40+01:00
Filename: Detailed summary of results.xlsx
Original checksum: 2d787b39562b5b39c7d6acd267d44b07
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