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Full-Text Articles in Mechanical Engineering
Experimental And Theoretical Investigations Of Lube Oil Performance And Engine Friction, William Fredrick Rohr
Experimental And Theoretical Investigations Of Lube Oil Performance And Engine Friction, William Fredrick Rohr
Doctoral Dissertations
The feasibility of using a motored small, single-cylinder 517 cc Hatz 1D50 diesel engine to evaluate lube oil performance and engine friction at conditions typical for a fired engine is investigated in the present study. In addition a commercial engine modeling software, AVL Excite Power Unit, is used to predict the effects of lube oil formulations on the engine friction of the same engine. The motored engine can be operated with and without compression and with and without the engine oil pump. Lube oil performance is evaluated for 19 different lube oils by using either instantaneous motoring torque (motoring torque …
Comparative Analysis Of Efficiency And Operating Characteristics Of Automotive Powertrain Architectures Through Chassis Dynamometer Testing, Jeremy J. Anderson
Comparative Analysis Of Efficiency And Operating Characteristics Of Automotive Powertrain Architectures Through Chassis Dynamometer Testing, Jeremy J. Anderson
Dissertations, Master's Theses and Master's Reports - Open
The thesis "COMPARATIVE ANALYSIS OF EFFICIENCY AND OPERATING CHARACTERISTICS OF AUTOMOTIVE POWERTRAIN ARCHITECTURES THROUGH CHASSIS DYNAMOMETER TESTING" was completed through a collaborative partnership between Michigan Technological University and Argonne National Laboratory under a contractual agreement titled "Advanced Vehicle Characterization at Argonne National Laboratory". The goal of this project was to investigate, understand and document the performance and operational strategy of several modern passenger vehicles of various architectures. The vehicles were chosen to represent several popular engine and transmission architectures and were instrumented to allow for data collection to facilitate comparative analysis. In order to ensure repeatability and reliability during testing, …
Thermal Characterization Of A Gasoline Turbocharged Direct Injection (Gtdi) Engine Utilizing Lean Operation And Exhaust Gas Recirculation (Egr), Daniel P. Madison
Thermal Characterization Of A Gasoline Turbocharged Direct Injection (Gtdi) Engine Utilizing Lean Operation And Exhaust Gas Recirculation (Egr), Daniel P. Madison
Dissertations, Master's Theses and Master's Reports - Open
The push for improved fuel economy and reduced emissions has led to great achievements in engine performance and control. These achievements have increased the efficiency and power density of gasoline engines dramatically in the last two decades. With the added power density, thermal management of the engine has become increasingly important. Therefore it is critical to have accurate temperature and heat transfer models as well as data to validate them. With the recent adoption of the 2025 Corporate Average Fuel Economy(CAFE) standard, there has been a push to improve the thermal efficiency of internal combustion engines even further. Lean and …