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Extended Rankine-Betz Theory for Design of Tunnel Ventilation Systems

Pelz, Peter F. ; Saul, Sebastian ; Doberstein, Christopher (2022)
Extended Rankine-Betz Theory for Design of Tunnel Ventilation Systems.
International Conference on Fan Noise, Aerodynamics, Applications and Systems. Darmstadt, Germany (18.-20.04.2018)
doi: 10.26083/tuprints-00021353
Konferenzveröffentlichung, Zweitveröffentlichung, Verlagsversion

Kurzbeschreibung (Abstract)

Today, the system design of tunnel ventilation systems including jet fans neglects the stream tube contraction being covered by the Rankine-Betz theory. The presented system design tool extends in a truly physical manner the current method. The influence of the stream tube contraction is discussed and compared to the common but simplified design method by Meidinger dated back to 1964. In addition, the traffic is treated as a peristaltic flow at high Reynolds number and friction losses are modeled with common approaches. The new model allows analysis of several extreme situations, like normal traffic flow, traffic jam and fire in a tunnel. With the help of the new tool, tunnel design parameters (the number of jet fan units and the cross section ratio of jet fans and tunnel) and the operating conditions (velocity ratio of jet fan velocity and tunnel velocity) are predictable.

Typ des Eintrags: Konferenzveröffentlichung
Erschienen: 2022
Autor(en): Pelz, Peter F. ; Saul, Sebastian ; Doberstein, Christopher
Art des Eintrags: Zweitveröffentlichung
Titel: Extended Rankine-Betz Theory for Design of Tunnel Ventilation Systems
Sprache: Englisch
Publikationsjahr: 2022
Ort: Darmstadt
Buchtitel: FAN 2018 - Proceedings of the International Conference on Fan Noise, Aerodynamics, Applications and Systems : 18. - 20. April 2018
Kollation: 11 Seiten
Veranstaltungstitel: International Conference on Fan Noise, Aerodynamics, Applications and Systems
Veranstaltungsort: Darmstadt, Germany
Veranstaltungsdatum: 18.-20.04.2018
DOI: 10.26083/tuprints-00021353
URL / URN: https://tuprints.ulb.tu-darmstadt.de/21353
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Herkunft: Zweitveröffentlichungsservice
Kurzbeschreibung (Abstract):

Today, the system design of tunnel ventilation systems including jet fans neglects the stream tube contraction being covered by the Rankine-Betz theory. The presented system design tool extends in a truly physical manner the current method. The influence of the stream tube contraction is discussed and compared to the common but simplified design method by Meidinger dated back to 1964. In addition, the traffic is treated as a peristaltic flow at high Reynolds number and friction losses are modeled with common approaches. The new model allows analysis of several extreme situations, like normal traffic flow, traffic jam and fire in a tunnel. With the help of the new tool, tunnel design parameters (the number of jet fan units and the cross section ratio of jet fans and tunnel) and the operating conditions (velocity ratio of jet fan velocity and tunnel velocity) are predictable.

Status: Verlagsversion
URN: urn:nbn:de:tuda-tuprints-213530
Sachgruppe der Dewey Dezimalklassifikatin (DDC): 600 Technik, Medizin, angewandte Wissenschaften > 620 Ingenieurwissenschaften und Maschinenbau
Fachbereich(e)/-gebiet(e): 16 Fachbereich Maschinenbau
16 Fachbereich Maschinenbau > Institut für Fluidsystemtechnik (FST) (seit 01.10.2006)
Hinterlegungsdatum: 13 Mai 2022 13:49
Letzte Änderung: 16 Mai 2022 06:04
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