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Treatment of Systematic Errors in Intrusive Concentration and Temperature Measurements

Pein, R. (2000) Treatment of Systematic Errors in Intrusive Concentration and Temperature Measurements. Combustion, Explosion, and Shock Waves, 36 (1), pp. 21-28.

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Abstract

Typical systematic errors that are made during intrusive concentration and temperature measurements in combustion chambers are illustrated. To decrease the errors, it is necessary to ensure rapid quenching of combustion gases and freezing of the composition of combustion products. Analysis is performed using a simple analytic model for heat transfer in a sampling probe. Results are given in the form of temperature time dependences, temperature profiles, and quench rates inside the probe. The measurement results are validated on the basis of formulation of a meterial balance (conservation of number of atoms). The main errors of high-temerature thermocouple measurements are discussed in detail, with emphasis on the radiation correction.

Document Type:Article
Additional Information: LIDO-Berichtsjahr=2000,
Title:Treatment of Systematic Errors in Intrusive Concentration and Temperature Measurements
Authors:
AuthorsInstitution or Email of Authors
Pein, R.UNSPECIFIED
Date:2000
Journal or Publication Title:Combustion, Explosion, and Shock Waves
Refereed publication:No
In SCOPUS:No
In ISI Web of Science:No
Volume:36
Page Range:pp. 21-28
Status:Published
HGF - Research field:Aeronautics, Space and Transport (old)
HGF - Program:Aeronautics
HGF - Program Themes:other
DLR - Research area:Aeronautics
DLR - Program:L TT - Triebwerkstechnologien
DLR - Research theme (Project):E -- no assignement
Location: Lampoldshausen
Institutes and Institutions:Institute of Space Propulsion
Deposited By: Monika Lohmiller
Deposited On:16 Sep 2005
Last Modified:06 Jan 2010 13:50

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