A Study of Trailing-Edge Losses in Organic Rankine Cycle Turbines-Reference-Cited by-同舟云学术

A Study of Trailing-Edge Losses in Organic Rankine Cycle Turbines

Published:2016-06-01 Issue:12 Volume:138 Page:
ISSN:0889-504X
Container-title:Journal of Turbomachinery
language:en
Short-container-title:

Author:

Durá Galiana Francisco J.¹,Wheeler Andrew P.S.²,Ong Jonathan³

Affiliation:

1. Aerodynamics and Flight Mechanics Group, Faculty of Engineering and the Environment, University of Southampton, Southampton SO17 1BJ, UK e-mail:

2. Whittle Laboratory, Engineering Department, University of Cambridge, Cambridge CB3 0DY, UK

3. GE Global Research, Munich 85748, Germany

Abstract

In this paper, vane trailing-edge losses which occur in organic rankine cycle (ORC) turbines are investigated. Experiments are performed to study the influence of dense gas effects on trailing-edge loss in supersonic flows using a novel Ludwieg tube facility for the study of dense-gas flows. The data is also used to validate a computational fluid dynamics (CFD) flow solver. The computational simulations are then used to determine the contributions to loss from shocks and viscous effects which occur at the vane trailing edge. The results show that dense gas effects play a vital role in the structure of the trailing-edge flow, and control the extent of shock and viscous losses.

Publisher

ASME International

Subject

Mechanical Engineering

Link

http://asmedigitalcollection.asme.org/turbomachinery/article-pdf/doi/10.1115/1.4033473/6305003/turbo_138_12_121003.pdf

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