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- Department of Biological Systems Engineering: Conference Presentations and White Papers (3)
- Department of Biological Systems Engineering: Papers and Publications (2)
- Historical Research Bulletins of the Nebraska Agricultural Experiment Station (2)
- Durham School of Architectural Engineering and Construction: Faculty Publications (1)
Articles 1 - 8 of 8
Full-Text Articles in Engineering
Zero Net Energy Test House, Timothy Hemsath, James D. Goedert, Avery Don Schwer, Yong Cho
Zero Net Energy Test House, Timothy Hemsath, James D. Goedert, Avery Don Schwer, Yong Cho
Durham School of Architectural Engineering and Construction: Faculty Publications
This paper describes the first phase of a residential research program to reduce the impact of new construction on the environment through research and education using a Zero Net Energy Test House as a framework. Containing four bedrooms, three and a half baths, the 1,800 square foot house, 1,000 square foot basement, is located in Omaha, Nebraska. It is being used to validate several research projects and provides a platform for applications research of a number of technological advances. Laminated photovoltaic solar panels, a wind turbine, and an occupant monitoring energy control system are some of the sustainable design innovations …
Conceptual Framework To Integrate Economic Drivers Of Decision Making For Technology Adoption In Agriculture, Thiago L. Romanelli, Francisco Muñoz-Arriola, Andre F. Colaço
Conceptual Framework To Integrate Economic Drivers Of Decision Making For Technology Adoption In Agriculture, Thiago L. Romanelli, Francisco Muñoz-Arriola, Andre F. Colaço
Department of Biological Systems Engineering: Papers and Publications
This study evaluates how much technology adoption could cost in a variety of crop-production scenarios. Cost-reduction simulations consider scenarios of higher input use efficiency such as reducing the usage of diesel, labor, irrigation, fertilizer, herbicide, and seed, among others. The scenarios aim to increase yields by integrating the effect of each input-reduction on the total operating costs. Agricultural production estimates for Nebraska in the US indicates that a technology that saves 1% of diesel is cost-effective, costing between USD 0.15/ha and USD 0.32/ha (for corn). Improvements on input use efficiency should be prioritized to incentivize technology development and adoption. This …
Grain Yield, Crop And Basal Evapotranspiration, Production Functions And Water Productivity Response Of Drought-Tolerant And Non-Drought-Tolerant Maize Hybrids Under Different Irrigation Levels, Population Densities And Environments: Part Ii. In South-Central And Northeast Nebraska's Transition Zone And Sub-Humid Environments, Suat Irmak, Ali T. Mohammed, William Kranz
Grain Yield, Crop And Basal Evapotranspiration, Production Functions And Water Productivity Response Of Drought-Tolerant And Non-Drought-Tolerant Maize Hybrids Under Different Irrigation Levels, Population Densities And Environments: Part Ii. In South-Central And Northeast Nebraska's Transition Zone And Sub-Humid Environments, Suat Irmak, Ali T. Mohammed, William Kranz
Department of Biological Systems Engineering: Papers and Publications
Information and data on newer drought-tolerant maize hybrid response to water in different climates are extremely scarce. This research quantified the performance of non-drought-tolerant (NDT) (H1) and drought-tolerant (DT) (H2, H3, and H4) maize (Zea mays L.) hybrids response to grain yield, crop evapotranspiration (ETc), basal evapotranspiration (ETb), ETc-yield production functions (ETYPF), and crop water use efficiency (CWUE) at three irrigation levels and two plant population densities (PPDs) at two locations (transition zone between sub-humid and semiarid climates at Clay Center (SCAL), Nebraska, in 2010 and 2012; and in a sub-humid climate at Concord (HAL), Nebraska, in 2010, 2011, and …
Irrigation Pumps - Preserving Performance, Derrel L. Martin
Irrigation Pumps - Preserving Performance, Derrel L. Martin
Department of Biological Systems Engineering: Conference Presentations and White Papers
This paper describes how pumps must be matched to operating conditions and power units to provide the desired performance and efficiency. We have recently seen installations where one or more components are not properly matched causing higher than necessary pumping costs. Inspection and maintenance of systems and measurement of flow and pressure will go a long way toward monitoring if the proper conditions are being met. This paper also covers types of pumps, pump components, pump curves, impeller speed and trim, pump staging, affinity laws, pump drives, power units, cavitation, and net positive suction head.
Updating The Nebraska Pumping Plant Performance Criteria, William Kranz, Derrel L. Martin, Dean Patterson, Jerry Hudgins, Simon Van Donk, C. Dean Yonts
Updating The Nebraska Pumping Plant Performance Criteria, William Kranz, Derrel L. Martin, Dean Patterson, Jerry Hudgins, Simon Van Donk, C. Dean Yonts
Department of Biological Systems Engineering: Conference Presentations and White Papers
Irrigation water is removed from groundwater storage using deep well turbine pumps powered by electric motors or diesel, gasoline, propane, ethanol, or natural gas internal combustion engines. For best operating efficiency irrigation power units are selected to specifically meet the requirements of the irrigation system that include how deep the water in the well is under pumping conditions, the water pressure required at the pump outlet, and the system flow rate. The evaluation of pumping plants to establish pumping plant performance dates back into the 1950’s when researchers at the University of Nebraska were unable to directly compare the operation …
Estimating The Savings From Improving Pumping Plant Performance., Derrel L. Martin
Estimating The Savings From Improving Pumping Plant Performance., Derrel L. Martin
Department of Biological Systems Engineering: Conference Presentations and White Papers
This brochure describes a method to estimate the cost of pumping water and to compare the amount of energy used to that for a well maintained and designed pumping plant. The results can help determine the feasibility of repairing the pumping plant.
An Analysis Of Pressure Gasoline And Pressure Kerosene Stoves, Arnold E. Baragar
An Analysis Of Pressure Gasoline And Pressure Kerosene Stoves, Arnold E. Baragar
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
During the past few years inquiries have been received regarding the cost of operation, efficiency, and performance of pressure gasoline and pressure kerosene stoves. Because of the method of operation and the use of gasoline as fuel, safety from fire and carbon monoxide has been frequently questioned. Not only is it necessary to have technical information about this type of appliance in order to compare it with other types but it is further important to know whether one type of burner is superior to another; whether one type of oven construction will give better results than another and in general …
A Study Of Five Commercial Electric Stoves, A. E. Baragar, Edna B. Snyder
A Study Of Five Commercial Electric Stoves, A. E. Baragar, Edna B. Snyder
Historical Research Bulletins of the Nebraska Agricultural Experiment Station
Five commercial electric stoves having major variations in types of surface units, in the construction, lining, and insulation of the oven, and in the retail price were studied to determine (1) the efficiency and time of heating of the various surface units, and (2) the merits of differently constructed ovens.