Study on Improvement of Natural Gas Fueled Spark Ignition Engines -Effect of EGR Utilization-

971714

05/01/1997

Event
International Spring Fuels & Lubricants Meeting & Exposition
Authors Abstract
Content
An experimental study was conducted to investigate the effect of EGR on combustion and exhaust emissions characteristics of a spark-ignited, super-charged, stoichiometric gas engine in order to achieve high BMEP equivalent to that of diesel engines. A four-stroke-cycle single-cylinder test engine was used. EGR was completely mixed with intake air before being introduced into the compressor. The results indicate that dry EGR utilizing drained exhaust gas improved the maximum mean effective pressure, as well as specific fuel consumption over the whole load due to improved knock characteristics of the unburnt mixture, increased specific heat ratio (κ), and reduced heat loss. Further experiments were conducted to identify the effect of humidity in the mixture on engine performance. The lean burn method was compared with the EGR method.
Meta TagsDetails
DOI
https://doi.org/10.4271/971714
Pages
11
Citation
Sakonji, T., and Shoji, F., "Study on Improvement of Natural Gas Fueled Spark Ignition Engines -Effect of EGR Utilization-," SAE Technical Paper 971714, 1997, https://doi.org/10.4271/971714.
Additional Details
Publisher
Published
May 1, 1997
Product Code
971714
Content Type
Technical Paper
Language
English