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Full-Text Articles in Engineering

Flowability And Handling Characteristics Of Bulk Solids And Powders—A Review With Implications For Ddgs, V. Ganesan, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan Dec 2008

Flowability And Handling Characteristics Of Bulk Solids And Powders—A Review With Implications For Ddgs, V. Ganesan, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan

Kurt A. Rosentrater

Much research regarding handling and storage characteristics of bulk solids has been conducted over the years. Physical properties of granular solids play a significant role in their resulting storage and flow behaviour, and are therefore essential to design appropriate, efficient, and economic bulk solids handling and storage equipment and structures. Distillers Dried Grains with Solubles (DDGS) is a bulk material that has been widely used as a protein source for ruminants and non-ruminants for more than two decades. Distillers grains are energy and nutrient dense, and are often used as a replacement for corn in animal diets. With the exponential …


Determination Of Machining Parameters Of Corn Byproduct Filled Plastics, Kurt A. Rosentrater Nov 2008

Determination Of Machining Parameters Of Corn Byproduct Filled Plastics, Kurt A. Rosentrater

Kurt A. Rosentrater

In a collaborative project between the USDA and Northern Illinois University, the use of ethanol corn processing by-products as bio-filler materials in the compression molding of phenolic plastics has been studied. This paper reports on the results of a machinability study in the milling of various grades of this material. Three types of samples were studied: 100%, 75% and 50% phenolic samples. The milling operation was carried out with a fixed depth of cut of 2.0 mm using a 12.5 mm diameter two-fluted end-mill. The cutting speed was varied between 120 and 160 m/min at feeds between 200 and 300 …


Flow Properties Of Ddgs With Varying Soluble And Moisture Contents Using Jenike Shear Testing, V. Ganesan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater Oct 2008

Flow Properties Of Ddgs With Varying Soluble And Moisture Contents Using Jenike Shear Testing, V. Ganesan, Kasiviswanathan Muthukumarappan, Kurt A. Rosentrater

Kurt A. Rosentrater

Distillers dried grains with solubles (DDGS) are an excellent source of energy, minerals, and bypass protein for ruminants and are used in monogastric rations as well. With the remarkable growth of the US fuel ethanol industry in the past decade, large quantities of distillers grains are now being produced. Flow of DDGS is often restricted by caking and bridging during its storage and transportation. In our previous works, the Carr powder tester was used to measure various flow properties of DDGS. The objective of this study was to measure the flow properties (cohesion, effective angle of friction, internal angle of …


Not Just Informative, But Necessary: Infusing Green And Sustainable Topics Into Engineering And Technology Curricula, Kurt A. Rosentrater, Elif Kongar Jun 2008

Not Just Informative, But Necessary: Infusing Green And Sustainable Topics Into Engineering And Technology Curricula, Kurt A. Rosentrater, Elif Kongar

Kurt A. Rosentrater

Generally accepted duties of engineers and technologists encompass designing and implementing solutions to problems. When so doing, it is their responsibility to be cognizant of the impacts of their designs on, and thus their accountability to, not only society in general, but also subsequent effects upon the environment. They need to be able to concurrently satisfy these competing needs, as well as constraints specific to the design challenges at hand. Responding to these requirements are the growing fields of green engineering and sustainable engineering. Both of these areas encompass many concepts, ideas, and tools, all of which are essential information …


The Biomass Bandwagon: Three Ideas For Engineering And Technology Programs To Get Onboard, Kurt A. Rosentrater, Jerry Visser Jun 2008

The Biomass Bandwagon: Three Ideas For Engineering And Technology Programs To Get Onboard, Kurt A. Rosentrater, Jerry Visser

Kurt A. Rosentrater

As society demands more energy and material goods, engineers and technologists will be relied upon to design and implement systems to produce and deliver these. There is growing interest in using renewable resources to produce fuels, chemicals, and finished products to meet these increasing needs. Additionally, popularity is gaining, both in research as well as industry, in developing and commercializing biobased products. Within this arena, there are tremendous opportunities for teaching innovations as well. To date, very limited discussions at ASEE regarding these potentials have occurred. The goal of this paper is to discuss possibilities for augmenting engineering and technology …


Modeling The Effects Of Value-Added Processing And Logistics Using Arena, Kurt A. Rosentrater, Elif Kongar Mar 2008

Modeling The Effects Of Value-Added Processing And Logistics Using Arena, Kurt A. Rosentrater, Elif Kongar

Kurt A. Rosentrater

Scarcity and cost of nonrenewable fossil fuels have been a growing focus of many energy-dependent nations, including the U.S., for the past couple of decades. There are mainly two ways to approach these problems: (1) reducing the energy dependency and/or (2) developing alternative means of energy production. Utilizing biofuels, which are renewable sources of energy, is a promising way to produce energy. But, as this industry grows, so too does the quantity of byproducts, which are known as DDGS. This paper discusses a model that has been developed to analyze the economic viability of DDGS processing, and includes both deterministic …


Determining Machining Parameters Of Corn Byproduct Filled Plastics, Kurt A. Rosentrater, Andrew W. Otieno, Pratyusha Melampati Jan 2008

Determining Machining Parameters Of Corn Byproduct Filled Plastics, Kurt A. Rosentrater, Andrew W. Otieno, Pratyusha Melampati

Kurt A. Rosentrater

In a collaborative project between the USDA and Northern Illinois University, the use of corn ethanol processing byproducts (i.e., DDGS) as bio-filler materials in the compression molding of phenolic plastics has been studied. This paper reports on the results of a machinability study in the milling of various grades of this material. Three types of samples were studied: 100% (0% DDGS), 75% (25% DDGS), and 50% (50% DDGS) phenolic samples. The milling operation was carried out with a fixed depth of cut of 2.0 mm using a 12.5 mm diameter two-fluted end-mill. The cutting speed was varied between 120 and …