Compressor mass flow: Unterschied zwischen den Versionen
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Gas turbine engine certification requires good knowledge of the compressor surge margin. While the working and surge line are easily measurable on a test rig, mass flow measurement is not usually possible in the installed condition. This gives rise to uncertainty on the actual surge margin available for operability manoeuvres. A method to derive the mass flow parameter during transient operation is being proposed. Validation and standardisation of this method would provide a complementary tool for compressor specification. Feedback is requested so as to better evaluate the usefulness of such a standard within the gas turbine community. | Gas turbine engine certification requires good knowledge of the compressor surge margin. While the working and surge line are easily measurable on a test rig, mass flow measurement is not usually possible in the installed condition. This gives rise to uncertainty on the actual surge margin available for operability manoeuvres. A method to derive the mass flow parameter during transient operation is being proposed. Validation and standardisation of this method would provide a complementary tool for compressor specification. Feedback is requested so as to better evaluate the usefulness of such a standard within the gas turbine community. |
Version vom 25. Februar 2021, 20:38 Uhr
1. Introduction
Gas turbine engine certification requires good knowledge of the compressor surge margin. While the working and surge line are easily measurable on a test rig, mass flow measurement is not usually possible in the installed condition. This gives rise to uncertainty on the actual surge margin available for operability manoeuvres. A method to derive the mass flow parameter during transient operation is being proposed. Validation and standardisation of this method would provide a complementary tool for compressor specification. Feedback is requested so as to better evaluate the usefulness of such a standard within the gas turbine community.