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Other Mechanical Engineering

Wayne State University Theses

Theses/Dissertations

2014

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Full-Text Articles in Engineering

An Investigation Of Kinetic Effects Of Split Injection Timing On Low Temperature Combustion, Tejaswini A. Kamble Jan 2014

An Investigation Of Kinetic Effects Of Split Injection Timing On Low Temperature Combustion, Tejaswini A. Kamble

Wayne State University Theses

Low temperature combustion (LTC) modes of operating internal combustion engines are of great interest for their potential to achieve high thermal efficiencies while maintaining low nitrogen oxide (NOX) and particulate matter emissions below levels requiring costly after-treatment systems. While various strategies for realizing LTC have been developed, including homogeneous charge compression ignition (HCCI), reactivity controlled compression ignition (RCCI) and premixed charge compression ignition (PCCI), a common challenge is the control of the kinetically-driven auto-ignition processes over appreciable load ranges.

This study examines the chemical kinetics of split-injection timing and the kinetic effect of this parameter on combustion phasing and pressure …


Simulations And Measurements Of Fuel Film Using Refractive Index Matching Method, Fengkun Wang Jan 2014

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 …