Category Title
The transient behavior of compressor stations, particularly under rapidly changing conditions, is of vital interest to compressor station operators. Predicting transient behavior is an important factor in designing protection systems for events such as emergency shutdowns. A limited number of “accidental” data sets from compressor manufacturers and users are available in the public literature domain. A variety of simulations and modeling approaches has been presented over the last few years at industry conferences, typically without experimental data to support them. The available experimental data for transient shutdowns are not of sufficient quality and resolution to compare predictions properly with analytical results or simulations available from current software packages. Necessary information about the compressor, the driver, the valves, and the geometry of the system is often missing. Currently utilized software has not been adequately validated with full-scale realistic benchmark data, as this data is not available in the public domain. Modeling procedures and simulations seldom contain validation data as this type of transient test data is often difficult to obtain. The primary objective of this work is to present experimental transient compressor surge data, to facilitate the verification and comparison of existing and future transient surge models. Detailed test set-up methods, instrumentation selection, piping geometry and model results are to be discussed. Relevant, dimensionless parameters are presented and validated utilizing the test data. Conclusions from the testing and recommendations for the transient analysis software will be provided.
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