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Flow Pattern Assessment in Tubes of Reciprocating Scraped Surface Heat Exchangers
dc.contributor.author | Solano Fernández, Juan Pedro | |
dc.contributor.author | García Pinar, Alberto | |
dc.contributor.author | Vicente Quiles, Pedro Ginés | |
dc.contributor.author | Viedma Robles, Antonio | |
dc.date.accessioned | 2015-02-12T07:35:47Z | |
dc.date.available | 2015-02-12T07:35:47Z | |
dc.date.issued | 2011-05 | |
dc.identifier.citation | International Journal of Thermal Sciences. Volume 50, Issue 5, May 2011, Pages 803-815. | es_ES |
dc.identifier.issn | 1290-0729 | |
dc.description.abstract | Flow pattern in the tubes of an innovative scraped surface heat exchanger with reciprocating scrapers has been experimentally investigated. The scraper consists of a concentric rod inserted in each tube of the heat exchanger, mounting an array of semicircular plugs that fit the inner tube wall. A hydraulic piston provides the scraper with constant-velocity reciprocating motion. Phase-averaged velocity fields have been obtained with PIV technique for both scraping semi-cycles, with special emphasis on the effect of the scraping velocity (velocity ratio) and Reynolds number. Visualization results have been contrasted with experimental data on Fanning friction factor, obtaining a clear relation between flow patterns, pressure drop augmentation and turbulence promotion. CFD simulations for quasi-steady laminar flow provide a further insight into the relation of the flow structures with wall shear stress, and the contribution of pressure forces to global head losses, for each scraping semi-cycle. | es_ES |
dc.description.sponsorship | This research has been partially financed by the DPI2007- 66551-C02 grant of the Spanish Ministery of Science and the company ”HRS Spiratube”. The authors are grateful to SEDIC-SAIT (UPCT) for providing the technical resources for CFD computations | es_ES |
dc.format | application/pdf | es_ES |
dc.language.iso | eng | es_ES |
dc.publisher | Elsevier | es_ES |
dc.rights | Atribución-NoComercial-SinDerivadas 3.0 España | * |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-nd/3.0/es/ | * |
dc.title | Flow Pattern Assessment in Tubes of Reciprocating Scraped Surface Heat Exchangers | es_ES |
dc.type | info:eu-repo/semantics/article | es_ES |
dc.subject.other | Mecánica de Fluidos | es_ES |
dc.subject | Scraped surface heat exchanger | es_ES |
dc.subject | SSH | es_ES |
dc.subject | Particle image velocimetry | es_ES |
dc.subject | PIV | es_ES |
dc.subject | Flow pattern | es_ES |
dc.subject | CFD | es_ES |
dc.identifier.uri | http://hdl.handle.net/10317/4471 | |
dc.peerreview | SI | es_ES |
dc.contributor.investgroup | Mecánica de Fluidos e Ingeniería Térmica | es_ES |
dc.identifier.doi | 10.1016/j.ijthermalsci.2010.11.019 | |
dc.rights.accessRights | info:eu-repo/semantics/openAccess | es_ES |
dc.type.version | info:eu-repo/semantics/acceptedVersion | es_ES |
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