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Effect of Natural Gas Quantity on Ignition Delay under Diesel Condition
Mohammad Iqbal Bin Mohd Said
Supervisor: Dr. Wan Nurdiyana Binti Wan Mansor
Bachelor of Technology (Environment)
School of Ocean Engineering
Universiti Malaysia Terengganu
This study is about using computer simulation software, MATLAB to find the emission
characteristics in a compression ignition engine. Model were prepared using
thermodynamics approach. This is meant to find the correlation of ignition delay and
emission which are particulate matter (PM) and nitrogen oxide (NOx) generated in the
combustion process of compression ignition engine and using the MATLAB as effective
method to find the emission characteristics with given thermodynamics approach. Two
zone model and followed by PM and NOx formation model was used. With different
ratio of diesel to natural gas, simulation was executed to find the ignition delay and
its relation to the emission by the engine with various engine speed and load. The
significance of this study are towards a better understanding about the application of
natural gas in compression ignition engine and the correlation of ignition delay with
the emission from the engine combustion process.
42 | U M T U N D E R G R A D U A T E R E S E A R C H D A Y 2019