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Update on single-screw expander geometry model integrated into an open-source simulation tool

Book Contribution - Book Chapter Conference Contribution

In this paper, a mechanistic steady-state model of a single-screw expander is described with emphasis on the geometric description. Insights into the calculation of the main parameters and the definition of the groove profile are provided. Additionally, the adopted chamber model is discussed. The model has been implemented by means of the open-source software PDSim (Positive Displacement SIMulation), written in the Python language, and the solution algorithm is described. The single-screw expander model is validated with a set of steady-state measurement points collected from a 11 kWe organic Rankine cycle test-rig with SES36 and R245fa as working fluid. The overall performance and behavior of the expander are also further analyzed.
Book: IOP Conference Series-Materials Science and Engineering
Volume: 90
Pages: 1 - 10
Publication year:2015
BOF-keylabel:yes
IOF-keylabel:yes
Accessibility:Open