Closing the gap: Measuring bristle blow down of brush seals

P. Helm, H. Spliethoff, M. Neef

Publikation: Beitrag in Buch/Bericht/KonferenzbandKonferenzbeitragBegutachtung

7 Zitate (Scopus)

Abstract

In adaptive seals such as brush seals, the performances is different from non contacting seals since leakage depends on a variable clearance. In the present experimental study of advanced seals the focus was directed at a combination of brush - and labyrinth seals. Experimental results are discussed for the configuration of two labyrinth teeth (upstream) and one brush seal (downstream). Special attention was paid to the gap between bristles and rotor using a new optical measurement method for small gap widths. An initial gap between brush and rotor is closed during operation of the rig by the so called blow down effect. In combination with leakage flow measurements it is shown how the pressure drop affects this blow down.

OriginalspracheEnglisch
TitelSealing for Pollution Prevention and Control - 19th International Conference on Fluid Sealing
Seiten275-284
Seitenumfang10
PublikationsstatusVeröffentlicht - 2007
Veranstaltung19th International Conference on Fluid Sealing - Poitiers, Frankreich
Dauer: 25 Sept. 200726 Sept. 2007

Publikationsreihe

NameSealing for Pollution Prevention and Control - 19th International Conference on Fluid Sealing

Konferenz

Konferenz19th International Conference on Fluid Sealing
Land/GebietFrankreich
OrtPoitiers
Zeitraum25/09/0726/09/07

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