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Scroll expander is a good candidate for small-scale ORC systems. Discharge flow has a significant impact on the expander performance. In this study, a novel bilateral symmetric discharge structure for scroll expander was proposed and compared with the unilateral discharge structure using CFD approach. Discharge flow features and the performances of the scroll expander were analyzed. Results show that...
As the scroll-type expander (STE) becomes an attractive expansion device for small-scale organic Rankine systems, performance enhancement of STE could achieve a further improvement of the energy efficiency of ORC system. The gas leakages through the axial and radial clearances have a great effect on the overall performance of STE. The present work proposed a three-dimensional numerical technique available...
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