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The Oxford Cold Driven Shock Tube (CDST) for fuel spray and chemical kinetics research

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conference contribution
posted on 08.04.2020 by Joe Camm, Martin Davy, Xiaohang Fang, Luke Doherty, Matthew McGilvray, Felix Foerster
A new reflected shock tube facility, the Cold Driven Shock Tube (CDST), has been designed, built and commissioned at the University of Oxford for investigating IC engine fuel spray physics and chemistry. Fuel spray and chemical kinetics research requires its test gas to be at engine representative pressures and temperatures. A reflected shock tube generates these extreme conditions in the test gas for short durations (order milliseconds) by transiently compressing it through a reflected shock process. The CDST has been designed for a nominal test condition of 6 MPa, 900 K slug of air (300 mm long) for a steady test duration of 3 ms. The facility is capable of studying reacting mixtures at higher pressures (up to 150 bar) than other current facilities, whilst still having comparable size (100 mm diameter) and optical access to interrogate the fuel spray with high speed imaging and laser diagnostics. Future data gathered will support fundamental research for IC engine and fuel technologies leading to even higher thermal efficiency along with a reduction in emissions, and provide high quality, repeatable validation data for advanced model development. This paper describes the scope of the facility's capabilities, aspects of its design, details of the instrumentation, and the axially mounted single hole diesel injector.

Funding

EPSRC under the grant: “Ultra Efficient Engines and Fuels”, Grant no. EP/M009424/1

History

School

  • Mechanical, Electrical and Manufacturing Engineering

Published in

SAE Technical Paper Series

Volume

2018-April

Source

WCX World Congress Experience

Publisher

SAE International

Version

AM (Accepted Manuscript)

Rights holder

© SAE International

Publisher statement

This paper was accepted for publication in the SAE Technical Paper Series and the definitive published version is available at https://doi.org/10.4271/2018-01-0222.

Publication date

2018-04-03

Copyright date

2018

ISSN

0148-7191

eISSN

2688-3627

Language

en

Depositor

Dr Joe Camm. Deposit date: 7 April 2020

Article number

2018-01-0222

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