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Agricultural and Biosystems Engineering Conference Proceedings and Presentations

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Life Cycle Assessment And Techno-Economic Analysis Of Ethanol Production: A Review, Maria C. T. B. Oliveira, Kurt A. Rosentrater Jul 2017

Life Cycle Assessment And Techno-Economic Analysis Of Ethanol Production: A Review, Maria C. T. B. Oliveira, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Conference Proceedings and Presentations

Fossil fuels are considered one of the most contributing for increasing the rate of greenhouse gas (GHG) emissions. On the other hand, renewable energy derived from biomass promising to reduce significantly the CO2 emissions, promoting less environmental impacts for the future generations. Nowadays, the cost and the environmental impacts of the process are the challenges for producing a green product with lower cost. Numerous research has been published over the lasts decades, but gaps remain in understanding the sustainability and the environmental impact of the ethanol production. The techno-economic analysis is designed in order to optimize one process, and the ...


Techno-Economic Modeling Of A Degummed Soybean Oil Biorefinery In 2005 & 2012, Bailley A. Richardson, Kurt A. Rosentrater Jul 2013

Techno-Economic Modeling Of A Degummed Soybean Oil Biorefinery In 2005 & 2012, Bailley A. Richardson, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Conference Proceedings and Presentations

As the biofuels industry expands, it is important to identify and quantize potential capital, operational, material, and utility costs, as well as possible sales prices for the biofuels and coproducts. Many industries use computer simulation programs for this function, as well as to see how using different operations can affect the overall production at the plant. The objective of this project was to determine how various operation scenarios affected capital, operational, material, and utility costs of a biodiesel biorefinery. These costs were examined using a techno-economic modeling program for a degummed soybean oil plant. It was clear after seeing economic ...


Review Of Housing Options For Gestating Sows, Dustin J. Schau, Jeremy D. Brue, Kurt A. Rosentrater Jul 2013

Review Of Housing Options For Gestating Sows, Dustin J. Schau, Jeremy D. Brue, Kurt A. Rosentrater

Agricultural and Biosystems Engineering Conference Proceedings and Presentations

Housing options for gestating sows is an important topic affecting livestock producers, consumers, and policy makers. Producers seek to provide high quality products at affordable prices while meeting increasing public demands for animal wellbeing. Several studies have been conducted over the years to compare group and individual housing options for gestating sows. The object of this paper was to review these studies and to look specifically at the areas of animal wellbeing and economic impact of housing type. Several types of housing and feed management plans were examined from previous studies and the impact of housing type was explored. Overall ...


Techno-Economic Modeling Of Coproduct Processing In A Corn Based Ethanol Plant In 2012, Christine Wood, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan Jul 2013

Techno-Economic Modeling Of Coproduct Processing In A Corn Based Ethanol Plant In 2012, Christine Wood, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan

Agricultural and Biosystems Engineering Conference Proceedings and Presentations

Coproducts, such as Distillers Dried Grains with Solubles (DDGS), produced during ethanol production are essential to the economic sustainability of each ethanol plant as they provide an additional source of revenue. DDGS is extensively used as animal feed, but has a relatively low market value compared to the biofuel. By fractioning DDGS into lighter and heavier fractions, the overall composition changes potentially increasing the value of the coproducts as they become more desirable to different markets. Earlier studies have examined fractionating DDGS using sieves and aspirators. This project examined the techno-economics of adding fractionation systems onto an existing 40 million ...


Comparison Of Construction Costs For Vegetated Treatment Systems In The Midwest, Bradley J. Bond, Robert T. Burns, Todd P. Trooien, Stephen H. Pohl, Christopher G. Henry, Lara B. Moody, Matthew J. Helmers, John Lawrence Jun 2009

Comparison Of Construction Costs For Vegetated Treatment Systems In The Midwest, Bradley J. Bond, Robert T. Burns, Todd P. Trooien, Stephen H. Pohl, Christopher G. Henry, Lara B. Moody, Matthew J. Helmers, John Lawrence

Agricultural and Biosystems Engineering Conference Proceedings and Presentations

Vegetated treatment systems (VTSs) provide an alternative to containment basin systems for beef feedlot runoff control. Beef producers in the Midwestern United States have shown an increasing interest in using VTSs as a perceived lower cost option to containment basin systems. This paper reports the actual construction costs associated with 21 VTSs (eight on permitted Concentrated Animal Feeding Operations (CAFOs) and 13 on non permitted Animal Feeding Operations (AFOs)) located within Iowa, Minnesota, South Dakota, and Nebraska. The VTS construction costs are reported on a per head basis in 2009 adjusted dollars for each system. Cost comparisons are presented between ...