NDLI: Particulate Monitor for Gas Turbine Cooling Air

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Richard, H. Bunce Dovali-Solis, Francisco Robert, W. Baxter
Copyright Year	2008
Abstract	It is important to monitor the quality of the air used in the cooling system of a gas turbine engine. There can be many reasons that particulates smaller than the minimum size removed by typical engine air filters can enter the secondary air system piping in a gas turbine engine system. Siemens has developed a system that provide real time monitoring of particulate concentrations by adapting a commercial electrodynamic devise for use within the confines of the gas turbine secondary air system with provision for a grab sample option to collect samples for laboratory analysis. This on-line monitoring system is functional at typical engine cooling system piping operating pressure and temperature. The system is calibrated for detection of iron oxide particles in the 1 to 100 micrometer range at concentration of from 1 to 50 parts per million mass wet (ppmmw) The electro dynamic device is nominally operable at 800°C. The particulate monitoring system requires special mounting and antenna. This system may be adjusted for other materials, sizes and concentrations. The system and its developmental application are described. The system has been tested and test results are reviewed. The test application was the cooling air piping of a Siemens gas turbine engine. Multiple locations were monitored. The cooling system in this engine incorporates an air cooler and the particulate monitoring system was tested upstream and downstream of the air cooler for temperature contrast. The monitor itself is limited to the piping system and not the engine gas-path.
Sponsorship	International Gas Turbine Institute
Starting Page	249
Ending Page	255
Page Count	7
File Format	PDF
ISBN	9780791843123
DOI	10.1115/GT2008-51135
e-ISBN	0791838242
Volume Number	Volume 2: Controls, Diagnostics and Instrumentation; Cycle Innovations; Electric Power
Conference Proceedings	ASME Turbo Expo 2008: Power for Land, Sea, and Air
Language	English
Publisher Date	2008-06-09
Publisher Place	Berlin, Germany
Access Restriction	Subscribed
Subject Keyword	Temperature Cooling Gas turbines Air filters Particulate matter Monitoring systems Cooling systems Iron Pipes Pressure Engines Piping systems
Content Type	Text
Resource Type	Article

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