NDLI: Dynamic gas temperature measurement system, volume 1

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Dynamic gas temperature measurement system, volume 1

Content Provider	NASA Technical Reports Server (NTRS)
Author	Robinson, W. W. Watkins, W. B. Elmore, D. L.
Copyright Year	1983
Description	A gas temperature measurement system with compensated frequency response of 1 kHz and capability to operate in the exhaust of a gas turbine engine combustor was developed. A review of available technologies which could attain this objective was done. The most promising method was identified as a two wire thermocouple, with a compensation method based on the responses of the two different diameter thermocouples to the fluctuating gas temperature field. In a detailed design of the probe, transient conduction effects were identified as significant. A compensation scheme was derived to include the effects of gas convection and wire conduction. The two wire thermocouple concept was tested in a laboratory burner exhaust to temperatures of about 3000 F and in a gas turbine engine to combustor exhaust temperatures of about 2400 F. Uncompensated and compensated waveforms and compensation spectra are presented.
File Size	8549243
Page Count	146
File Format	PDF
Alternate Webpage(s)	http://archive.org/details/NASA_NTRS_Archive_19840008461
Archival Resource Key	ark:/13960/t4fn60v7b
Language	English
Publisher Date	1983-05-10
Access Restriction	Open
Subject Keyword	Temperature Measurement Convective Heat Transfer Conductive Heat Transfer Exhaust Gases Thermocouples Gas Turbine Engines Durability Combustion Chambers Gas Temperature Ntrs Nasa Technical Reports Server (ntrs) Nasa Technical Reports Server Aerodynamics Aircraft Aerospace Engineering Aerospace Aeronautic Space Science
Content Type	Text
Resource Type	Technical Report

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