Experimental investigation of entropy waves during unstable combustion in the chamber of a gas turbine engine
| Autor: | V. M. Sil'verstov, V. E. Doroshenko |
|---|---|
| Rok vydání: | 1982 |
| Předmět: |
Chemistry
General Chemical Engineering General Physics and Astronomy Energy Engineering and Power Technology Thermodynamics Choke General Chemistry Mechanics Combustion Temperature measurement law.invention Vibration Fuel Technology Pressure measurement law Combustor Physics::Chemical Physics Combustion chamber Heat engine |
| Zdroj: | Combustion, Explosion, and Shock Waves. 18:20-25 |
| ISSN: | 1573-8345 0010-5082 |
| DOI: | 10.1007/bf00783925 |
| Popis: | This study attempts to detect entropy waves which have been suggested as a factor in the tense pressure vibrations caused during unstable combustions. A diagram of the test apparatus, burner, choke, transducer (to record vibration), amplifier, and spectrum analyzer are detailed. Temperature oscillations, the phase of oscillations, are measured by specified device. The test is based on the laws of Wien and Kirchoff which makes it possible to establish a relation between brightness and true temperature. By this measurement of the oscillations of gas temperatures it is established that at the outlet of a single-burner section of the combustion chamber of a gas turbine engine in the unstable combustion regime, there exist intense non-isentropic temperature oscillations of considerable amplitude. These are evidence of the presence of entropy waves. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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