Note: An improved driver section for a diaphragmless shock tube

Improvements to equipment lifetime and measurement reproducibility have been made by modifying the actuating mechanism of a diaphragmless shock tube that is used for high temperature gas kinetic studies. The modifications have two major benefits while retaining the simplicity of the original apparat...

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Bibliographic Details
Published in:Review of scientific instruments 2015-01, Vol.86 (1), p.016117-016117
Main Authors: Randazzo, J B, Tranter, R S
Format: Article
Language:English
Subjects:
Bellows
Cyclohexene
High temperature gases
Reproducibility
Scientific apparatus & instruments
Shock waves
Signal averaging
Wave generation
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Summary:Improvements to equipment lifetime and measurement reproducibility have been made by modifying the actuating mechanism of a diaphragmless shock tube that is used for high temperature gas kinetic studies. The modifications have two major benefits while retaining the simplicity of the original apparatus. First, the reproducibility of shock wave generation has been greatly improved and is demonstrated with 50 nearly identical experiments on the dissociation of cyclohexene at T2 = 1765 ± 13 K and P2 = 120 ± 1 Torr, demonstrating the capability for signal averaging over many experiments. Second, the lifetime of the bellows which forms the heart of the actuator is considerably improved, significantly increasing the time between replacements.
ISSN:0034-6748
1089-7623
DOI:10.1063/1.4906758