The Influence of Some Engine Operating Parameters on Particulate Emissions 922222
Experiments were conducted on two direct injection diesel engines: a standard production 2.5 litre engine, and a single cylinder research engine fitted with a high-pressure electronically controlled unit injector. The influence of some operating parameters (such as load, speed, injection timing and swirl-ratio) on the total mass and composition of particulate emissions sampled in a mini-dilution tunnel was investigated. A data acquisition system was used to record and analyse the cylinder pressure, fuel line pressure and fuel injection needle-lift diagrams. Analysis of the HC and NOx emissions as well as the Bosch smoke number was helpful in the understanding of how the fuel and air mixing process, the flame type and the combustion chamber temperature and pressure affect the amount and composition of diesel particulate emissions. A good correlation between the Bosch smoke number and the exhaust carbon concentration was also found.
Citation: Gomes, P. and Yates, D., "The Influence of Some Engine Operating Parameters on Particulate Emissions," SAE Technical Paper 922222, 1992, https://doi.org/10.4271/922222. Download Citation
Author(s):
Paulo C. F. Gomes, David A. Yates
Affiliated:
UMIST
Pages: 13
Event:
International Fuels & Lubricants Meeting & Exposition
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Particulate matter (PM)
Diesel / compression ignition engines
Combustion chambers
Fuel injection
Nitrogen oxides
Fuel lines
Data acquisition and handling
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