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dc.contributorKofoed Nielsen, Henrik
dc.contributor.authorNavasa Guasch, Maria
dc.date.accessioned2012-03-07T17:33:57Z
dc.date.available2012-03-07T17:33:57Z
dc.date.issued2010
dc.identifier.urihttp://hdl.handle.net/2099.1/14575
dc.description.abstractThe ViscoLine Annular heat exchanger (VLA) is a four annular concentric tube heat exchanger from Alfa Laval AB designed for processing mainly food products like purees. These type of uids are highly viscous and known as non-Newtonian. The VLA unit is a commercialized product although there is lack of information of how does the heat exchanger work with precision and thus, only rough estimations based on experience can be done for simulating the VLA behavior. In this project, a model of the VLA considering both heat transfer and pressure drops has been developed in order to obtain a reliable model of how the heat exchanger behaves when using non-Newtonian uids so it can further be used for commercial purposes within Alfa Laval AB. In parallel, tests on the VLA heat exchanger using the available uids; water and oil which are Newtonian uids, have been carried out to prove the validity of the elaborated code. These tests have been run in two different units. From an analysis on the results obtained from the code evaluation and a proper characterization of the non-Newtonian uids, the behavior of these uids in the VLA can be simulated. The results of this should conclude in a general correlation for the ViscoLine Annular heat exchanger when dealing with non-Newtonian uids. The model has been validated with regard to heat transfer. Pressure drop calculations agree with the measurements but there are issues that need to be followed closely: the singular pressure drop coe cients ( factors), the wall viscosity effect and the pressure drop calculations in one of the units.
dc.language.isoeng
dc.publisherUniversitat Politècnica de Catalunya
dc.publisherLunds Tekniska Högskola
dc.subjectÀrees temàtiques de la UPC::Física::Termodinàmica::Física de la transmissió de la calor
dc.subjectÀrees temàtiques de la UPC::Física::Física de fluids::Flux de fluids
dc.subject.lcshHeat exchangers
dc.subject.lcshNon-Newtonian fluids
dc.titleModeling of the ViscoLine Annular Heat Exchanger
dc.typeMaster thesis (pre-Bologna period)
dc.subject.lemacBescanviadors de calor
dc.subject.lemacFluids no newtonians
dc.rights.accessOpen Access
dc.audience.educationlevelEstudis de primer/segon cicle
dc.audience.mediatorEscola Tècnica Superior d'Enginyeria Industrial de Barcelona
dc.audience.degreeENGINYERIA QUÍMICA (Pla 2000)
dc.description.mobilityOutgoing


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