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Engineering Commons

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2011

Design

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Articles 31 - 36 of 36

Full-Text Articles in Engineering

Design Of A Liquid Fuel Injector For Alternative Fuel Studies In An Atmospheric Model Gas Turbine Combustor, John Stevenson Jan 2011

Design Of A Liquid Fuel Injector For Alternative Fuel Studies In An Atmospheric Model Gas Turbine Combustor, John Stevenson

Honors Theses

A new liquid-fuel injector was designed for use in the atmospheric-pressure, model gas turbine combustor in Bucknell University’s Combustion Research Laboratory during alternative fuel testing. The current liquid-fuel injector requires a higher-than-desired pressure drop and volumetric flow rate to provide proper atomization of liquid fuels. An air-blast atomizer type of fuel injector was chosen and an experiment utilizing water as the working fluid was performed on a variable-geometry prototype. Visualization of the spray pattern was achieved through photography and the pressure drop was measured as a function of the required operating parameters. Experimental correlations were used to estimate droplet sizes …


Discrete Element Modelling: Trouble-Shooting And Optimisation Tool For Chute Design, Andrew P. Grima, Thomas Fraser, David B. Hastie, Peter W. Wypych Jan 2011

Discrete Element Modelling: Trouble-Shooting And Optimisation Tool For Chute Design, Andrew P. Grima, Thomas Fraser, David B. Hastie, Peter W. Wypych

Faculty of Engineering and Information Sciences - Papers: Part A

Conveyor transfer stations play a key role in many industries that handle bulk materials. Transfer stations can be rather sensitive to changes in material properties and can lead to relentless problems regarding reliability, wear, bottlenecking and blockages. Wet and sticky ores are typically difficult to handle materials due to their obnoxious ability to form a cohesive arch, adhere to surfaces and poor flow ability. Mines that are situated in areas with seasonal high rainfalls or that have started to exploit newer and more difficult to mine and handle ores, often from below the water table, experience vast difficulty in reliably …


The Beginning Of A New Era In Design: Calibrated Discrete Element Modelling, Andrew Grima, David Hastie, David Curry, Peter Wypych, Richard La Roche Jan 2011

The Beginning Of A New Era In Design: Calibrated Discrete Element Modelling, Andrew Grima, David Hastie, David Curry, Peter Wypych, Richard La Roche

Faculty of Engineering and Information Sciences - Papers: Part A

The reliable storage and flow of bulk materials requires a comprehensive design process and good understanding of the flow properties of a bulk material. Analytical and empirical design techniques form the backbone of many design processes as they have been validated by research, however, theories based on continuum mechanics have many shortcomings and are restricted to 2-D analysis. Discrete element modelling (DEM) is proving to be a popular analysis and simulation method to verify designs for a wide range of bulk material processing and handling operations, such as transfer chutes. With the advances in computing and DEM technology, DEM has …


Design Mentoring Tool, Bob Mccullouch, Walter Land Jan 2011

Design Mentoring Tool, Bob Mccullouch, Walter Land

JTRP Technical Reports

In 2004 a design engineer on-line mentoring tool was developed and implemented The purpose of the tool was to assist senior engineers mentoring new engineers to the INDOT design process and improve their technical competency. This approach saves senior engineers time while developing a consistent mentoring approach and standardizing technical knowledge in road and bridge design. It is a self-guided tool that utilizes multi-media and web-based technologies, trains engineers in the design process and provides resources to use for developing plans and specifications. Available resources include INDOT design practices, design standards, design memos, specification and construction standards, procedures, and check …


Design, Fabrication And Characterization Of A New Wind Tunnel Facility – Linear Cascade With A Wake Simulator, Jean-Philippe Junca-Laplace Jan 2011

Design, Fabrication And Characterization Of A New Wind Tunnel Facility – Linear Cascade With A Wake Simulator, Jean-Philippe Junca-Laplace

LSU Master's Theses

A new wind tunnel has been designed and constructed at the LSU Mechanical Engineering Laboratories. The objective was to design a versatile test facility, suitable for a wide range of experimental measurements on turbine blades. The future study will investigate the impact of unsteady inflow conditions on film cooling performance. More specifically, it will study how the unsteady flow due to the upstream passing wakes coming from the front row vane affects the film cooling performances on the turbine blades. The test section consists of a four passage linear cascade composed of three full blades and two shaped wall blades. …


Design Space Decomposition Using Concept Maps, David E. Robbins Jan 2011

Design Space Decomposition Using Concept Maps, David E. Robbins

All ETDs from UAB

Decomposition of engineering design spaces has been performed primarily through statistical and system identification techniques. However, no approach has yet attempted to capture the semantics of a design through decomposition. This thesis presents graphical techniques for capturing the semantics of a design by developing an information architecture through design space decomposition using concept maps. In particular, concept maps are used to begin identifying the top layers of the information architecture of a problem, which has the dual effects of performing an initial decomposition of the design space and refining the parameters that will define more detailed design spaces for further …