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Wet steam measurement techniques

Walker, David; Barham, Scott; Giddings, Donald; Dimitrakis, Georgios

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Authors

David Walker

Scott Barham



Abstract

In recent years a greater need for power station efficiency has become evident; improving turbine blade efficiency is one of the methods proposed. This efficiency relies upon the wetness of the steam that comes into contact with the blades of the low pressure turbine stage in general and all turbines in nuclear power generation. Therefore being able to measure the moisture content of the steam in real time in conjunction with an accurate measure of steam velocity can give an overall mass flow re-entering the turbine, allowing for a feedback control. The system could rely on one technique that could measure suspended droplets and wall bound liquid film, or a combination of techniques could operate together. This work gives a comprehensive review of the different techniques used to measure the moisture content including the liquid film and moisture content and techniques that can give measurements on both simultaneously. Each technique has its strengths and weaknesses analysed, to see which technique works best overall and which techniques could be used together.

Journal Article Type Article
Acceptance Date Apr 18, 2018
Online Publication Date Jul 10, 2018
Publication Date 2019-07
Deposit Date May 10, 2018
Publicly Available Date Jul 11, 2019
Journal Reviews in Chemical Engineering
Print ISSN 0167-8299
Electronic ISSN 0167-8299
Publisher De Gruyter
Peer Reviewed Peer Reviewed
Volume 35
Issue 5
Pages 627-648
DOI https://doi.org/10.1515/revce-2017-0078
Public URL https://nottingham-repository.worktribe.com/output/946162
Publisher URL https://www.degruyter.com/view/j/revce.2019.35.issue-5/revce-2017-0078/revce-2017-0078.xml

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