Computer Simulation Studies of an Alcohol Fueled Low Heat Rejection Direct Injection Diesel Engine

972976

10/01/1997

Event
International Fuels & Lubricants Meeting & Exposition
Authors Abstract
Content
This paper describes the development of a computer simulation model for a single cylinder direct injection diesel engine for neat diesel operation, ethanol-diesel dual fuel operation in fumigation and dual injection mode, operating on conventional or low heat rejection version. The model which illustrates the simulation of the overall cycle consisting of compression, combustion, expansion, exhaust and intake processes also predicts the nitric oxide and soot emissions. In addition it also predicts the brake power, brake thermal efficiency, brake specific fuel consumption, maximum gas pressure and maximum gas temperature. The above model was validated using available experimental results. Subsequently the computer program was run for different operating conditions encompassing broad changes in several engine operating parameters. Comprehensive studies showed that a diesel engine fueled with ethanol under fumigation and dual injection modes resulted in an increase in power, improvement in brake specific energy consumption, reduction in nitric oxide emission and soot concentration. Further enhanced performance and emission characteristics have been observed for a dual injection operation as compared to the fumigation mode. In the low heat rejection mode, improved power output, slightly higher nitric oxide emission and lower level of soot formation was observed as compared to the conventional mode.
Meta TagsDetails
DOI
https://doi.org/10.4271/972976
Pages
14
Citation
Islam, R., Subrahmanyam, J., and Babu, M., "Computer Simulation Studies of an Alcohol Fueled Low Heat Rejection Direct Injection Diesel Engine," SAE Technical Paper 972976, 1997, https://doi.org/10.4271/972976.
Additional Details
Publisher
Published
Oct 1, 1997
Product Code
972976
Content Type
Technical Paper
Language
English