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Detailed CFD modelling of EMC screen for radio base stations: A conjugate heat transfer problem
Högskolan i Gävle, Institutionen för teknik och byggd miljö, Ämnesavdelningen för energi- och maskinteknik. Royal Institute of Technology, Stockholm, Sweden; TECHUN, University of Navarra, San Sebastián, Spain.
Högskolan i Gävle, Institutionen för teknik och byggd miljö, Ämnesavdelningen för energi- och maskinteknik. Royal Institute of Technology, Stockholm, Sweden.
Högskolan i Gävle, Institutionen för teknik och byggd miljö, Ämnesavdelningen för energi- och maskinteknik.ORCID-id: 0000-0003-3472-4210
2007 (engelsk)Inngår i: International Journal of Heat Exchangers, ISSN 1524-5608, Vol. 8, nr 1, s. 95-116Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

The objective of this paper is to perform an experimental as well as CFD investigations of the conjugate heat transfer problem in a sub-rack slot model. A steady-state three-dimensional detailed model, which serves as the most accurate representation of the model, was used in order to evaluate the details of the airflow paths and temperature field. A general model that covers a considerable range of velocities, screen porosities and heat fluxes was validated experimentally by wind tunnel measurements. The result shows that the RNG k-ε model used with correct y+ and mesh strategy accurately predicts the temperature field. The average temperature deviation at several locations is less than 4% compared to experimental data. The influence of the velocity, screen porosity, heat flux and presence of the EMC screen on the PCB temperature field is commented. © 2007 R.T. Edwards, Inc.

sted, utgiver, år, opplag, sider
2007. Vol. 8, nr 1, s. 95-116
Emneord [en]
Base stations; Computational fluid dynamics; Electromagnetic compatibility; Heat flux; Porosity; Radio systems, Average temperature deviation; Screen porosity; Wind tunnel measurements, Heat transfer
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Identifikatorer
URN: urn:nbn:se:hig:diva-22679Scopus ID: 2-s2.0-34547290987OAI: oai:DiVA.org:hig-22679DiVA, id: diva2:1040915
Tilgjengelig fra: 2016-10-30 Laget: 2016-10-30 Sist oppdatert: 2018-03-13bibliografisk kontrollert

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