Comparison and analysis of the effects of spark timing and lambda on a high-speed spark ignition engine fuelled with n-butanol/gasoline blends

Fuel ◽  
2021 ◽  
Vol 287 ◽  
pp. 119505
Author(s):  
Qijun Tang ◽  
Pin Jiang ◽  
Caiwang Peng ◽  
Hongbo Chang ◽  
Zhichao Zhao
Keyword(s):  
High Speed ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Spark Timing ◽  
Comparison And Analysis

Development of a pre-ignition submodel for hydrogen engines

2005 ◽  
Vol 219 (10) ◽  
pp. 1203-1212 ◽  
Author(s):  
M A R Sadiq Al-Baghdadi
Keyword(s):  
Compression Ratio ◽  
Spark Ignition ◽  
Spark Ignition Engine ◽  
Superior Performance ◽  
Design Parameters ◽  
Operating Variables ◽  
Spark Timing ◽  
Hydrogen Engines ◽  
Intake Pressure

In hydrogen-fuelled spark ignition engine applications, the onset of pre-ignition remains one of the prime limitations that needs to be addressed to avoid its incidence and achieve superior performance. This paper describes a new pre-ignition submodel for engine modelling codes. The effects of changes in key operating variables, such as compression ratio, spark timing, intake pressure, and temperature on pre-ignition limiting equivalence ratios are established both analytically and experimentally. With the established pre-ignition model, it is possible not only to investigate whether pre-ignition is observed with changing operating and design parameters, but also to evaluate those parameters' effects on the maximum possible pre-ignition intensity.

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