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May 1, 1986Proceedings of the Institution of Mechanical Engineers Part A Power and Process Engineering

Multi-Vane Expanders as Prime Movers in Low-Grade Energy Engines

O. Badr Doug Probert P.W. O’Callaghan

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Abstract

Multi-vane expanders possess many advantages, over turbines and other positive-displacement machines, as prime movers for low-grade energy engines of small power outputs. It has been found that the performances of such expanders can be improved considerably by optimizing their design and operating variables. For an organic Rankine-cycle engine, utilizing low-temperature heat as the input, a multi-vane expander with isentropic efficiencies exceeding 73 per cent at rotational speeds up to 3000 r/min was designed, built and demonstrated.

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Badr et al. (1986) studied this question.

synapsesocial.com/papers/6a71b18931a3df824329c2bd https://doi.org/10.1243/pime_proc_1986_200_017_02

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