The Effect of Engine Variables on Hydrocarbon Emissions - An Investigation with Statistical Experiment Design and Fast Response FID Measurements
Date Published: 1996-10-01
Paper Number:961951
DOI: 10.4271/961951
Citation:
Seabrook, J., Nightingale, C., and Richardson, S., "The Effect of Engine Variables on Hydrocarbon Emissions - An Investigation with Statistical Experiment Design and Fast Response FID Measurements," SAE Technical Paper 961951, 1996, doi:10.4271/961951.
Author(s):
Justin Seabrook - Cosworth Engineering
Chris Nightingale - University College London
Stephen H. Richardson - Jaguar Cars Ltd.
This paper describes an investigation of emissions from an engine featuring variable valve timing, a swirlcontrol valve and exhaust gas recirculation.
Design of experiments has been used to model the response of hydrocarbons and other emissions to the engine operating variables. The experiments identified the potential of VVT for simultaneous NO
x
, and HC reduction.
The type of experiment employed was the Central Composite Rotatable Design; this is a fractional factorial design that maximises the amount of information obtained from a minimal number of test runs.
A Fast Response Flame Ionisation Detector has been used to clarify the reasons for the effect of inlet and exhaust VVT on hydrocarbons.
File Size: 406K
Product Status: In Stock
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