Keywords
Citation
(1999), "New gas turbine performance monitoring system", Aircraft Engineering and Aerospace Technology, Vol. 71 No. 3. https://doi.org/10.1108/aeat.1999.12771cad.001
Publisher
:Emerald Group Publishing Limited
Copyright © 1999, MCB UP Limited
New gas turbine performance monitoring system
New gas turbine performance monitoring system
Keywords Chell, Gas turbines, Performance measurement
Chell have developed the GTM2000 ethernet based multi-channel data scanning system specifically for performance testing gas turbine engines. It is packaged in flight cases for convenience of transport and installation at the engine bed, on research, production or pass-off test facilities (Plate 1).
Plate 1 GTM2000 Gas turbine test set
showing the rack-mounted, flight cased package ready for convenient and fast
installation 
Measurements of pressure (dry gas and all-media), temperature (RTD and thermocouple), voltage, current and frequency are made using PSI ethernet scanners and the data are transmitted to a hub which, in turn, is connected to the data acquisition computer. The GTM is equipped with transfer standard pressure calibrators so that calibration may be carried out at any time selected by the operator, thus ensuring the highest measurement performance.
Data from any other source such as engine management systems and exhaust gas analysers may also be fed into the data system for acquisition and display. All data may be logged to disk in steady state, transient or crash logging modes.
Signal connections are via quick disconnects for pressures and terminal strips for other inputs and the pressure channels may all be purged and leak checked from a keyboard command prior to running the engine.
The computer screen may be organised and configured by an operator with the appropriate password this extends to full calibration data handling, including before and after data retention and operator choice of appropriate linearisation technique. All data may then be modified by zero and linearity coefficients before logging, if desired, for best performance.
Further details from Chell Instruments Ltd. Tel: +44 (0) 1692 402488; Fax: +44 (0) 1692 406177.