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The Study Of Ionization In A Military, Heavy-Duty, Diesel Engine, Steven Zielinski
The Study Of Ionization In A Military, Heavy-Duty, Diesel Engine, Steven Zielinski
Wayne State University Theses
This thesis is an investigation of ionization in a military, heavy-duty, diesel engine. Ionization is a phenomenon which occurs in both spark-ignited and diesel engines. During the reactions of combustion, charged molecules and electrons are produced. The current produced, ion current, from these charges can be measured. The measurement of ion current can serve as an in-cylinder diagnostic for closed-loop engine control strategies. In this work, a literature review was performed to survey previous work as it pertains to ionization in diesel engines. In addition, a detailed description and comparison of the HEUI injection system was made to HPCR. This …
Simulations And Measurements Of Fuel Film Using Refractive Index Matching Method, Fengkun Wang
Simulations And Measurements Of Fuel Film Using Refractive Index Matching Method, Fengkun Wang
Wayne State University Theses
ABSTRACT
SIMULATIONS AND MEASUREMENTS OF FUEL FILM USING REFRACTIVE INDEX MATCHING METHOD
by
FENGKUN WANG
APRIL 2014
Advisor: Dr. Ming-Chia Lai
Major: Mechanical Engineering
Degree: Master of Science
Direct Injection (DI) has been known for its improved performance and efficiency in gasoline spark-ignition engines. However, wall wetting is inevitable and the source of UHC and PM. In order to take advantage of the GDI technology, it is important to investigate spray wall interactions in detail.
Numerical and experimental studies are carried out for spray and wall impingements in an optical constant volume vessel. The fuel film was measured spatially and …