NDLI: Improving the Accuracy of Tests for Centrifugal Compressor Stage Performance Prediction

Content Provider	The American Society of Mechanical Engineers (ASME) Digital Collection
Author	Fiaschi, Daniele Manfrida, Giampaolo Tapinassi, Libero
Copyright Year	2006
Abstract	A design of experiment approach was used to solve problems on the new centrifugal compressor stage development test beds at the Nuovo Pignone – GE Oil&Gas premises in Florence, Italy. The company is able to provide centrifugal compressor equipment tailored to the user’s requests, with special reference to the oil & gas market. In order to provide this service, an archive of designs is available which can be adapted to different requirements: CFD is widely used to improve the turbomachinery performance, and on each new stage design extensive fluid dynamics test campaigns are routinely run, in order to confirm the expected performance. Recently inadequacy of the accuracy of the measurements became evident: the cause was traced back to thermal effects which introduced a large uncertainty in the test results, with special reference to machines having large operating Mach number, and low pressure ratio. The present work included: a) The development of a heat transfer model capable of predicting the observed trend of the experimental data. b) The improvement of the accuracy of total temperature measurements, needed to confirm the results of the model. The positive results allow the company to guarantee with increased confidence the expected performance levels.
Starting Page	623
Ending Page	631
Page Count	9
File Format	PDF
ISBN	0791842495
DOI	10.1115/ESDA2006-95070
e-ISBN	0791837793
Volume Number	Volume 2: Automotive Systems, Bioengineering and Biomedical Technology, Fluids Engineering, Maintenance Engineering and Non-Destructive Evaluation, and Nanotechnology
Conference Proceedings	ASME 8th Biennial Conference on Engineering Systems Design and Analysis
Language	English
Publisher Date	2006-07-04
Publisher Place	Torino, Italy
Access Restriction	Subscribed
Subject Keyword	Design Temperature measurement Uncertainty Computational fluid dynamics Fluid dynamics Temperature effects Turbomachinery Compressors Machinery Pressure Heat transfer Mach number
Content Type	Text
Resource Type	Article

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