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Date of Award
AN EXPERIMENTAL INVESTIGATION ON THE EFFECT OF
INTAKE CHARGE TEMPERATURE AND INJECTION TIMING
ON AUTOIGNITION OF LOW CETANE NUMBER FUEL
SWAPNIL S BODELE
Advisor: Dr. Naeim Henein
Major: Mechanical Engineering
Degree: Master of Science
Although diesel engines are considered the best powerhouses for their heavy-duty
capabilities, concerns have been raised because of their emission issues. Alternative
fuels like jet fuels can be substitute to them for improved efficiencies. The Department Of
Defense uses JP8 for their combat vehicles under their Single Fuel Concept for a better
logistic supply chain. However, due to the projected age of depletion of crude oil
reservoirs, synthetic blends are being considered for their abundant availability.
One such blend, SASOL IPK, a Coal to Liquid based fuel prepared by the Fisher-
Tropsch process is considered in this study. This thesis shows results from experiments
conducted on single cylinder PNGV engine to study the effect of intake charge
temperature and injection timing on ignition delay of SASOL IPK. Speed, fuel injection
pressure, swirl ratio and charge density were kept constant for all data points.
Two cases were considered, one with constant SOI and varying intake air
temperature and the other with constant intake air temperature and varying SOI. It was
observed that with an increase in intake air temperature and advancing injection timing,
ignition delay of the fuel reduced significantly. NTC regime and cool flame also decreased
drastically at higher intake air temperatures and advanced injection timing.
Bodele, Swapnil Shekhar, "An Experimental Investigation On The Effect Of Intake Charge Temperature And Injection Timing On Autoignition Of Low Cetane Number Fuel (sasol Ipk)" (2016). Wayne State University Theses. 466.