Experimental validation of a geometry model for twin screw machines

Buckney, D., Kovacevic, A. & Stosic, N. (2013). Experimental validation of a geometry model for twin screw machines. In: 8th International Conference on Compressors and their Systems. (pp. 237-246). Cambridge: Woodhead Publishing. ISBN 9781782421696

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Abstract

Aspects of screw compressor geometry are often idealised in mathematical models used for design and optimisation of twin screw machines which can lead to errors in performance predictions. A model that accurately represents geometrical elements such as the volume and flow area history, variable interlobe clearances and geometry of actual compressor port shape has been previously presented by the authors. In this paper the geometry values from that model were used with an existing thermodynamic model to predict the compressor performance with consideration of different rotor profiles, actual discharge port and thermal effects on clearances for an oil free compressor. Results were verified using experimental test data.

Item Type: Book Section
Subjects: T Technology > TA Engineering (General). Civil engineering (General)
Divisions: School of Engineering & Mathematical Sciences > Engineering
URI: http://openaccess.city.ac.uk/id/eprint/4418

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