Mechanical Engineering Commons^™

Investigation Into The Possible Use Of An Oxygen Ion Transport Membrane Combustion Unit In An Oxyfired Power Plant, Kirsten Foy

Doctoral

It is generally recognised that carbon dioxide (CO2) emissions damage the environment. Carbon capture and storage offers the possibility of using fossil fuels for power production without releasing C02. In the proposed ZEITMOP power plant cycle hydrocarbon fuel is burned in a mixture of oxygen and C02, allowing easy separation of combustion products to capture the C02 for sequestration. Oxygen ion transport membranes (OTMs) provide oxygen. The original configuration of the cycle requires an OTM air separation unit, in which oxygen is separated from air and mixed with CO2, and a separate combustion chamber, in which fuel is burned in …

Investigation Of Contact Pressure Distribution On Sheet Metal Stamping Tooling Interfaces: Surface Modeling, Simulations, And Experriments, Sripati Sah

Masters Theses 1911 - February 2014

In stamping operations, sheet metal is formed into a desired shape by pressing it in a hydraulic or mechanical press between suitably shaped dies. As a predominant manufacturing process, sheet metal forming has been widely used for the production of automobiles, aircraft, home appliances, beverage cans and many other industrial and commercial products. A major effort till date on stamping processes monitoring has been focused on investigating variations in the press force. Given that the press force itself is an integral of the contact pressure distribution over the die and binder contact interfaces, it is conceivable that defects may be …

Introductory Lectures On Turbulence: Physics, Mathematics And Modeling, James M. Mcdonough

Mechanical Engineering Textbook Gallery

From Chapter 1:

The understanding of turbulent behavior in flowing fluids is one of the most intriguing, frustrating— and important—problems in all of classical physics.

The problem of turbulence has been studied by many of the greatest physicists and engineers of the 19th and 20th Centuries, and yet we do not understand in complete detail how or why turbulence occurs, nor can we predict turbulent behavior with any degree of reliability, even in very simple (from an engineering perspective) flow situations. Thus, study of turbulence is motivated both by its inherent intellectual challenge and by the practical utility of a …