Hostname: page-component-cd9895bd7-8ctnn Total loading time: 0 Render date: 2024-12-26T22:11:31.716Z Has data issue: false hasContentIssue false
  • English
  • Français

The Measurement of Gas Turbine Combustion Efficiency by Gas Analysis

Published online by Cambridge University Press:  07 June 2016

L. J. Richards  and
J. C. Street
L. J. Richards
Affiliation:
Thornton Research Centre, Shell Refining and Marketing Company Limited
J. C. Street
Affiliation:
Thornton Research Centre, Shell Refining and Marketing Company Limited
Get access

Summary

Following a brief discussion of various methods of measuring combustion efficiency in gas turbine chambers, the superiority in accuracy of applied gas analysis is stated. Factors leading to inefficiencies in combustion are outlined and the exhaust constituents requiring measurement are deduced. The chief difficulty in the past in the application of gas analysis methods to combustion efficiency determination has been the time consumed in actual analysis of samples; at Thornton Research Centre means of overcoming this difficulty have been investigated and several rapid and accurate analytical techniques have been developed and used successfully. These techniques are described, together with other promising methods at present under development. The broad requirements of obtaining exhaust gas samples for analysis are discussed and typical sampling systems described; precautions necessary in applying these systems are given. Formulse for the calculation of combustion efficiency from analytical results, together with any assumptions made, are given in the text and their derivation explained in an Appendix. The techniques described have been developed primarily for use in conjunction with rig testing of aircraft gas turbine combustion chambers; the broader application—for instance, to engine testing—of the principles involved are considered briefly.

Type
Research Article
Information
Aeronautical Quarterly , Volume 1 , Issue 2 , August 1949 , pp. 165 - 186
Copyright
Copyright © Royal Aeronautical Society. 1949

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

1. Lloyd, P. (1945). Experimental Work at the National Gas Turbine Establishment. Unpublished.Google Scholar
2. Lloyd, P. (1948). The Determination of Gas Turbine Combustion Chamber Efficiency by Chemical Means. Transactions of the American Society of Mechanical Engineers, May 1948, Vol. 70, No. 4, p. 335.Google Scholar
3. Bamford, C. H., and Baldwin, R. R. (1942). A Method for the Accurate Analysis of Gaseous Mixtures. Journal of the Chemical Society, Jan. 1942, p. 26.Google Scholar
4. Baldwin, R. R. (1947). A Rapid and Accurate Method for the Estimation of Carbon Dioxide. Thornton Research Centre Report No. R.200/47.0. (To be published in the Journal of the Chemical Society) Google Scholar
5. Poole, R. (1948). The Design, Testing and Calibration of a Combustible Gas Detector. Journal of the Institution of Electrical Engineers, June 1948, Vol. 95 (ii), p. 258.Google Scholar