Combustion Characteristics of Electrolytically Produced Hydrogen-Oxygen Mixtures

Paper #:
  • 971703

Published:
  • 1997-05-01
Citation:
Bohacik, T., De Maria, S., Trowbridge, C., and Saman, W., "Combustion Characteristics of Electrolytically Produced Hydrogen-Oxygen Mixtures," SAE Technical Paper 971703, 1997, https://doi.org/10.4271/971703.
Pages:
12
Abstract:
The paper reports and evaluates the combustion pressures of electrolytically produced stoichiometric hydrogen-oxygen mixtures, spark-ignited inside a variable height (volume 0-250cc) ceramic piston cylinder arrangement. Ignition of mixtures was carried out at room temperature and absolute pressures varying between 5 and 180 kPa.Maximum combustion pressures were obtained from pressure-time traces and compared to a computer simulation model based on the first law of thermodynamics, ideal gas law and high temperature dissociation of combustion products. Ignition delay time and rate of pressure rise are also investigated.The results are to be used in a preliminary design of a combustion chamber of a hydrogen-oxygen fuelled engine.It was found that maximum combustion pressures are dependent on initial mixture pressure, initial water vapour content and surface area/volume ratio of combustion chamber.The average rate of pressure rise (dP/dT) is independent of chamber height but is a function of initial mixture pressureIgnition delay time is found to be a function of initial mixture pressure and decreases exponentially from a maximum value of 2.2 ms to 0.3 ms as the precombustion pressure of the mixture is increased.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Training / Education
2018-06-04
Training / Education
2010-08-03
Article
2017-03-13