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Bioresource and Agricultural Engineering

1983

Articles 1 - 13 of 13

Full-Text Articles in Engineering

An Inventory Of Geothermal Resources In Nebraska, William D. Gosnold, Duane A. Eversoll Jun 1983

An Inventory Of Geothermal Resources In Nebraska, William D. Gosnold, Duane A. Eversoll

United States Department of Energy: Publications

The goal of the State Coupled Resource Assessment Program is to identify and evaluate geothermal resources in the state, particularly low-temperature potential. Eight tasks were identified and documented in this report as follows:
TASK ONE: Bottom-hole Temperature Survey
TASK TWO: Heat Flow and Temperature Gradient Survey
TASK THREE: Data Translation studies
TASK FOUR: Gravity Data
TASK FIVE: Substate Regions
TASK SIX: Information Dissemination
Heat Flow and Temperature Gradient Survey
TASK SEVEN: State Geothermal Map
TASK EIGHT: Reports
The project had three major products; (1) a map "Geothermal Resources of Nebraska,” (2) a significant amount of thermal data collected and documented …

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Energy In Agriculture: Planning A House With An Energy Future, Clifford A. Flood, Blaine F. Parker, Donald G. Colliver Apr 1983

Energy In Agriculture: Planning A House With An Energy Future, Clifford A. Flood, Blaine F. Parker, Donald G. Colliver

Agricultural Engineering Energy Series

If you are planning a new house, consider the following. Suppose the price of energy for residential space heating and domestic water heating doubles or triples during the next 10 years. Will your new house be prepared for such a future? Have you given the energy required to operate your home equal importance to building site, style, floor plans and construction materials?

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Biomass Gasifier Combustor, Frederick A. Payne, Ira J. Ross Mar 1983

Biomass Gasifier Combustor, Frederick A. Payne, Ira J. Ross

Biosystems and Agricultural Engineering Faculty Patents

The present invention is directed to a biomass gasifier combustor which operates by gasification and combustion of the biomass to produce a clean effluent gas which can be used directly for grain drying or other applications where thermal energy is required. This biomass gasifier combustor burns crop residue clean enough so that the combustion gases can be used directly for grain drying without the need for a heat exchanger to isolate the combustion gases from the drying air. The biomass gasifier combustor includes a screw feeder tube having a screw feeder disposed therein. The screw feeder forces the biomass into …

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Crop Harvester Including A Quickly Adjustable Semi-Floating, Self-Steering Cutter Head, Larry D. Swetnam, James H. Casada, Linus R. Walton Jan 1983

Crop Harvester Including A Quickly Adjustable Semi-Floating, Self-Steering Cutter Head, Larry D. Swetnam, James H. Casada, Linus R. Walton

Biosystems and Agricultural Engineering Faculty Patents

The present invention is directed to an easily adjustable, semi-floating, self-steering cutter head for row crops. The present invention incorporates self-steering capabilities, a cut-off mechanism and a quick-adjustment into a single integral unit. Direction sensing is accomplished by utilizing a feeler arm or a set of feeler arms which follow the plant stock row or other protrusions or indentations. Forces detected by the guidance sensors are transmitted to a ring which is a part of the housing and/or shielding of the cut-off device. The steering forces may be transmitted to a steering system through a single connection. The present invention …

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Limiting Swine Stress With Evaporative Cooling In The Southeast, Robert L. Fehr, K. T. Priddy, Samuel G. Mcneill, Douglas G. Overhults Jan 1983

Limiting Swine Stress With Evaporative Cooling In The Southeast, Robert L. Fehr, K. T. Priddy, Samuel G. Mcneill, Douglas G. Overhults

Biosystems and Agricultural Engineering Faculty Publications

Three-hourly weather data for 7 locations in the Southeast and Central United States were used to evaluate the feasibility of evaporative cooling for reducing swine stress. Stress was defined as a relationship between dry and wet bulb temperatures which exceeded a stress index of 85. This analysis indicates that properly installed evaporative coolers could reduce the number of hours that stress would occur in swine facilities from 89.6 to 96.4% depending on location.

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A Dairy Cow Housing System Featuring Motel Free Stalls, Robert L. Fehr, William L. Crist Jan 1983

A Dairy Cow Housing System Featuring Motel Free Stalls, Robert L. Fehr, William L. Crist

Agricultural Engineering Extension Updates

The term motel free stalls describes a milking cow housing system that utilizes roof area which protects only the free stalls. Alleys are only partially protected by the roof overhang. This system provides little protection from extreme temperatures but can provide some summer protection if properly constructed. Motel free stall systems reduce the initial cost of constructing lactating cow housing. Motel free stall system described in this paper should be used with caution in climatic regions colder than Kentucky because of limited protection from extreme cold temperatures. This paper describes the application of motel free stall housing systems and a …

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File Editing On The Hp3000 For The Sedimot Ii Computer Model, David S. Logsdon, Richard C. Warner Jan 1983

File Editing On The Hp3000 For The Sedimot Ii Computer Model, David S. Logsdon, Richard C. Warner

Agricultural Engineering Extension Updates

Since the release of the SEDIMOT II model, the Agricultural Engineering Department has taught approximately 300 consulting and mining engineers, reclamation specialists, government agency personnel, and academia. The program is being used on all types of computer systems, company owned as well as time sharing vendors. Over 50 firms are using the HP3000 system of the College of Agriculture at the University of Kentucky under arrangements with the Institute for Mining and Minerals Research, Office of Informational Services and Technical Liaison.

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Some Recommended Tobacco Barn Construction Features, George A. Duncan Jan 1983

Some Recommended Tobacco Barn Construction Features, George A. Duncan

Agricultural Engineering Extension Updates

Following are several recommendations concerning tobacco barn construction or remodeling. These recommendations are included in newly revised blueprints available through the Agricultural Engineering Plan Service (see separate plans list).

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Infiltration Through Reconstructed Surface Mined Spoils And Soils, A. D. Ward, Larry G. Wells, R. E. Phillips Jan 1983

Infiltration Through Reconstructed Surface Mined Spoils And Soils, A. D. Ward, Larry G. Wells, R. E. Phillips

Biosystems and Agricultural Engineering Faculty Publications

An extensive series of tests involving reconstructed profiles of spoil and topsoil material from a Western Kentucky surface mine site was conducted with a laboratory infiltrometer system. Infiltration through the reconstructed spoil profiles was very slow despite the coarse nature of the material. Low infiltration rates could be attributed to the material having a well-graded texture and to the high densities of the profiles. Infiltration through topsoil horizons was controlled, for the most part, by conditions at the surface. Following wetting, infiltration rates were primarily controlled by the hydraulic characteristics of the less permeable sub horizon of the spoil material. …

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Regrowth And Yield Of Alfalfa As Influenced By Wheel Traffic, Burl D. Meek, Lyle M. Carter, Richard H. Garber, Eric A. Rechel, William R. Detar Jan 1983

Regrowth And Yield Of Alfalfa As Influenced By Wheel Traffic, Burl D. Meek, Lyle M. Carter, Richard H. Garber, Eric A. Rechel, William R. Detar

William R DeTar

Wheel traffic from equipment used to harvest alfalfa reduces yields because of crown damage and soil compaction. As much as 70% of the soil surface may receive wheel traffic during a single harvest.

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Travel Time For Chemicals In An Irrigation System, William R. Detar Jan 1983

Travel Time For Chemicals In An Irrigation System, William R. Detar

William R DeTar

When a chemical is injected into an irrigation system, the length of time it takes to reach the end of the longest path can have a large effect on the uniformity of distribution of the chemical in the field. In trickle irrigation systems, the time to travel this path is also the minimum time before the end of the cycle at which system maintenance chemicals should be injected. In the case where wastewater is being applied to land through an irrigation system or where an injected chemical would cause damage to the piping if it were to remain in the …

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Trickle Irrigation Vs. No-Irrigation Of Five Horticultural Crops In Pennsylvania, William R. Detar, David F. Kibler, D. W. Grenoble, R. Daniels, R. H. Cole Jan 1983

Trickle Irrigation Vs. No-Irrigation Of Five Horticultural Crops In Pennsylvania, William R. Detar, David F. Kibler, D. W. Grenoble, R. Daniels, R. H. Cole

William R DeTar

IN humid regions, the question of whether one should irrigate often overshadows problems such as selecting the proper system or scheduling procedure. To show whether it pays to irrigate by running irrigation experiments in the field is a long, expensive process. It would take perhaps five to ten years to determine significant relationships. The approach used in this project was to set up a computer model relating crop yields to weather data and moisture stress, and then verify the model at a few points using field experiments. This first report on the project includes only the field procedures and yields.

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Bioassays- Procedures And Results, A. F. Maciorowski, L. W. Little, L. F. Raynor, Ronald C. Sims, J. L. Sims Jan 1983

Bioassays- Procedures And Results, A. F. Maciorowski, L. W. Little, L. F. Raynor, Ronald C. Sims, J. L. Sims

Biological Engineering Faculty Publications

Bioassay procedures to describe, evaluate, and predict the potential hazard of toxic materials to organisms and ecosystems, and the health-related aspects of polluted waters continue to receive widespread attention. Symposium proceedings and books pertinent to toxic substances management and test procedures have appeared, as have several literature reviews pertinent to specific pollutants. The proceedings of the fifth annual ASTM symposium on aquatic toxicology presented a collection of papers directed to research needs in aquatic toxicology and hazard assessment, new concepts in aquatic toxicology, biological availability and sediment toxicity, and hazard assessment and water quality criteria.1 A state-of-the-art overview pertinent …

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