Method for determining the error in parameters as a tool for analyzing the technologies of testing of turboshaft engine compressors

Authors

  • Pestov Denis Vyacheslavovich Samara National Research University, Samara
  • Gataullina Elena Dmitrievna Samara National Research University, Samara
  • Matveev Valeriy Nikolaevich Samara National Research University, Samara
  • Novikova Yulia Dmitrievna Samara National Research University, Samara

Keywords:

engine testing, measurement system, experimental error

Abstract

The analysis of applied technologies for testing compressors of turboshaft engines of stationary power plants was carried out. A method was developed for determining errors in the compressor parameters, taking into account both systematic nonexcluded and random errors. It was found that in order to increase the accuracy of measuring the reduced air flow, it is necessary to abandon the flow collector at the engine inlet and use a specially designed q - meter installed in the air channel of the front engine support. To reduce the error in the degree of pressure increase and compressor efficiency, it is advisable to switch to anoverpressure measurement system behind a compressor of an increased accuracy class. The use of the proposed systems for measuring the reduced air flow and overpressure behind the compressor, as shown by computational studies, reduces the determination of the error of the gas dynamic stability margin from 11.4 to 3.3%.

Author Biographies

Pestov Denis Vyacheslavovich, Samara National Research University, Samara

postgrad. student at the Department of the Theory of Aircraft Engines. Air transport engineer’s diploma (SSAU, 2012). He is preparing a thesis on the gasdynamic stability of serial gas-turbine engines

Gataullina Elena Dmitrievna, Samara National Research University, Samara

Bachelor's degree (Samara University, 2022) in the field of the design of aircraft engines and power plants. She is a second-year master's student at Samara University specializing in aircraft engines

Matveev Valeriy Nikolaevich, Samara National Research University, Samara

Prof. at the Department of the Theory of Aircraft Engines. Mechanical engineer’s diploma (KuAU, 1977). Dr. of Tech. Sci. in the field of the operating processes of microturbines (SSAU, 2000). Studies in the field of aircraft impeller machines

Novikova Yulia Dmitrievna, Samara National Research University, Samara

Senior Lecturer at the Department of the Theory of Aircraft Engines. Master's degree (SSAU, 2014). She is preparing a thesis on aircraft impeller machines

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Published

2024-04-06

Issue

Vol. 28 No. 1(103) (2024)

Section

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