Influences of vane design and lubricant on a multi-vane expander's performance

O. Badr, S.D. Probert and P.W. O'Callaghan

Applied Energy, 1986, vol. 22, issue 4, 298 pages

Abstract: Multi-vane expanders possess advantages as prime movers for organic Rankine-cycle engines stimulated by low-grade heat, particularly for low-power output applications. The behaviours of the vanes in these devices influence radically their overall performances. In this study, the effects of the percentage of the lubricating oil mixed with the working fluid, the arrangement of the pressurising slots machined into the vanes and the vane material upon the performance of a multi-vane expander are investigated. The experimental results indicate that the performances and operation reliabilities of multi-vane expanders can be improved considerably by optimising these design and operational variables.

Date: 1986
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