Experimental investigation of a prototype semi-dry revolving vane expander: Design challenges and performance criteria

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dc.contributor.author Naseri, Ali en
dc.contributor.author Norris, Stuart en
dc.contributor.author Subiantoro, Alison en
dc.date.accessioned 2020-07-08T21:51:00Z en
dc.date.available 2020-06-04 en
dc.date.issued 2020-08 en
dc.identifier.issn 0360-5442 en
dc.identifier.uri http://hdl.handle.net/2292/52380 en
dc.description.abstract The current study focuses on the design and use of a modified revolving vane expander (M-RVE). It was designed to overcome the limitations of a previous Revolving Vane expander design (RV-I) with the eventual aim of its use in an Organic Rankine Cycle (ORC). The M-RVE is a semi-dry prototype with no active lubrication system. The prototype functioned well for a range of pressure differences of up to 6.5 bar(g) and speeds of up to 600 rpm, in test that used compressed air as the working fluid. Compared to the RV-I, the M-RVE prototype generated higher torque (as much as 3 times that of the RV-I), exhibited higher isentropic efficiencies of up to 41%, but with lower volumetric efficiencies of less than 3%. The low volumetric efficiency was mainly due to the lack of an active lubrication system. Analysis of the internal leakages demonstrated severe leakages at the suction valve (blocker) and vane endface clearance gaps. The ratio between the ideal and the total leakage mass flow rates was between 1.2% and 7.3% at a suction pressure of 6.5 bar(g). en
dc.description.uri https://catalogue.library.auckland.ac.nz/permalink/f/t37c0t/uoa_alma51207972020002091 en
dc.relation.ispartofseries Energy en
dc.rights Items in ResearchSpace are protected by copyright, with all rights reserved, unless otherwise indicated. Previously published items are made available in accordance with the copyright policy of the publisher. en
dc.rights.uri https://researchspace.auckland.ac.nz/docs/uoa-docs/rights.htm en
dc.title Experimental investigation of a prototype semi-dry revolving vane expander: Design challenges and performance criteria en
dc.type Journal Article en
dc.identifier.doi 10.1016/j.energy.2020.118063 en
pubs.volume 205 en
dc.rights.holder Copyright: The author en
pubs.author-url https://www.sciencedirect.com/science/article/pii/S0360544220311701 en
pubs.publication-status Accepted en
dc.rights.accessrights http://purl.org/eprint/accessRights/RestrictedAccess en
pubs.subtype Article en
pubs.elements-id 804343 en
pubs.org-id Engineering en
pubs.org-id Mechanical Engineering en
pubs.number 118063 en
pubs.record-created-at-source-date 2020-06-18 en
pubs.online-publication-date 2020-06-11 en

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