Turbine Washing to Remove Nozzle Deposition at Wairakei
- Location
- Wairakei, New Zealand; Taupo Volcanic Zone
- Conference
- New Zealand Geothermal Workshop
- Year
- 2001
- Session
- Materials, Corrosion & Scaling
- Language
- English
Full text
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Abstract
Deposition of steam evaporates on the nozzles of the IP turbines at Wairakei has become more pronounced since the shift in production to ìwî steam wells and operation with superheat conditions within wellbores and pipelines. This deposition, and the outages needed to remove it, resulted in sigzllficant production losses. A simple turbine washing system was designed and installed to dissolve deposits with the turbine on load The washing procedure is done for short periods on an as-needed basis. It has been cost effective and there is no indication that the additional water has been detrimental to the life of the turbine.
Copyright 2001, University of Auckland. Readers who download papers from this site should honour the copyright of the original authors, and may not copy or distribute the work further without the permission of the original publisher.