Engineering Commons^™

Airfoil Data For Use Of Wind Turbine Designers, Melvin H. Snyder

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

This paper reviews design procedures for wind-axis turbine rotors. An "on-design" routine for rotor blade design is presented as well as an "off-design" performance calculation program. Resulting from this review are analyses of desirable characteristics of airfoil sections and of types of data which rotor designers need. Included in the paper are airfoil characteristics for candidate blade sections including 360 degree data for GA(W)-1 and GA(W)-2 airfoils.

Economics And Net Energy Analysis: Is A New Analytical Technique Needed For Energy Decision Making?, William J. Kruvant

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The paper attempts to evaluate the claims of Net Energy Analysis (NEA) against those of economics in a reasonably comprehensive way. The principal problems of NEA concern system boundaries, aggregation across fuels, valuing external effects, valuing human labor and valuing time. These problems seriously limit the contribution Net Energy Analysis can make to allocation decisions, and allocation Is the central problem of energy policy.

Volunteers In Energy Conservation -- Potential And Problems, Clayton L. Smith

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The social and political implications of the energy crisis, while complex in nature and understanding, seem to urgently proclaim that the time for action is now. This paper is based on the premise that individual responsibility is essential. The people must act. Political decisions must be made. The people must debate what social climates are to be promoted and by what new energy systems. The key to solving the energy crisis is America's people, and particularly with its youth. With people come the potential and of course, the problems. The approach of this paper will be threefold.

An Overview Of Potential Impacts Of Changing Petroleum Energy Prices On Grain Farms, Jean-Paul Chavas, James B. Kliebenstein

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Since the early 1970s world fossil fuel energy prices have risen dramatically. Assuming there is no significant breakthrough in en- ergy technology, the world will see further increases in energy prices. These changes will likely lead to economic adjustments in U. S. agriculture. A firm level linear programming model is used to evaluate what some of these adjustments could be on a Missouri grain farm. To obtain expected energy price affects on production mixes, energy prices are changed parametrically. Potential crop adjustments are from corn to single-crop soybeans to wheat as energy prices increase. Fertilization adjustments are from chemical to …

The Impact Of Changing Net Returns On Minimum Energy Requirements For Grain Farms, James B. Kliebenstein, Robert M. Finley, Douglas C. Farthing

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

With sources of energy more restricted and higher priced, optimal combinations of enterprises must logically be considered on the basis of energy efficiency. One method of ascertaining this efficiency is to optimize solutions for given levels of income on the basis of energy used (e.g., the objective function was in terms of energy kilocalories). In general, soybeans were most feasible at lower levels of income regardless of farm size and labor circumstance. As income levels increased, double-cropping (wheat soybeans) was first substituted and finally corn at highest income levels.

Low Head Power Generation With Bulb Turbines, J. L. Carson, R. S. Samuelson

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Because of uncertainties, delays, and high costs associated with alternative electric energy sources, many agencies responsible for generation of electrical power are investigating means of replacing or supplementing their existing hydroelectric facilities. In the head range between 10 and 60 feet, the bulb-type generating unit, in which the generator is enclosed in a metal capsule within the water passage, has many advantages, including higher efficiency and lower cost, over other types of turbines. Two of the municipalities in the United States which have recently conducted feasibility studies for installing bulb turbines in their systems are the City of Idaho Falls, …

4th Annual Umr-Dnr Conference On Energy -- Entire Proceedings, University Of Missouri--Rolla

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

No abstract provided.

Large And Small Applications Of Energy Farming, Oliver C. Sitton, E. A. Kobylinski, J. L. Gaddy

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The collection of solar energy by photosynthesis and the subsequent conversion of crop matter to natural gas can be practiced in farm scale applications or very large installations. This paper discusses the design and economics of these systems.

Attitudes Towards Quality In The Design And Construction Of Nuclear Power Plants, Daniel L. Babcock, Larry G. Harmon

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Adequate regulation of construction (and operation) of nuclear power plants has become a matter of growing national concern. Published statements by individuals speaking from two viewpoints, those of the regulatory agencies and the nuclear power industry, suggest divergent attitudes. Nineteen statements from these two points of view were evaluated for agreement or disagreement by 38 knowledgeable persons from both industry and government (of 50 solicited in a mail survey). Survey results showed a general appreciation of the need for some level of regulation and also for the possibility of over-regulation. Differences existed within as well as between the two groups, …

Improving Energy Efficiency By Federal Regulation, Barry Hyman, Burns E. Hegler

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

This paper examines the scope and nature of federal activities devoted to improving the efficiency of energy utilization in buildings, consumer products, motor vehicles, and industrial processes and equipment. Several forms of regulation are identified and their characteristics are explored. It is postulated that consistency of an overall policy of energy efficiency regulation can be ascertained from the examination of a regulatory policy matrix.

Heat Recovery Devices For Building Hvac Systems, Ronald H. Howell, Harry J. Sauer Jr.

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The opportunities and advantages of air-to-air heat recovery are described. The five basic types (rotary regenerative, coil loop run around, open run-around, heat pipe, and plate type) are described and their typical performance is presented. The potential savings in operating costs as well as initial equipment costs for common applications are presented.

The Operator’S Guide For Minimizing Energy Costs, Charles Dare, Frank A. Gerig

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The consumption of petroleum by transportation activities is increasing despite the finite limits on its supply. This paper concentrates on the motor vehicle driver, his driving habits, and guides to reduced fuel consumption which would enable the individual to curtail wasteful practices with respect to vehicle operation.

Reducing Electrical Power Demand For Industries, Burns E. Hegler, J. Byron Nelson, Rene O. Harrell

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

A typical industry has an electric power demand that is in excess of its needs. This condition places an unnecessary burden upon the industry and contributes to the current energy crisis. Reduction of demand may be accomplished by a number of methods of control that are examined and evaluated. Standard techniques of engineering analyses and engineering economy have been used to study and analyze an industry selected as an example.

The National Program For Solar Energy, Keith Davidson, Richard J. Gariboldi, John J. Purcell

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

On October 26, 1974, the Solar Energy Research Development and Demonstration Act was signed into law authorizing a vigorous federal program of research development and demonstration to establish solar energy as a viable energy resource. Solar heating and cooling of buildings represents a midterm help in an attempt to be less dependent on oil and natural gas. Many other solar programs are underway in the development of solar energy.

A Systems Study Of Our Energy Problems, S. C. Lee

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

The diminishing supply of petroleum and natural gas has induced many concerned citizens as well as many interest groups to study energy problems. Based on different sources of information and various degrees of economical consideration, conflicting conclusions have been reached. To help resolve this situation, a systems study was conducted. The available statistics on the supply and demand of energy were examined. The resources of nuclear energy, fossil fuel, and renewable energy sources were analyzed. Considerations were weighted equally on energy content, resource availability, existing technology, and consumer economics as well as on the impact of ecology and sociology. The …

Comparison Of Nuclear And Coal Power Plants Using Net Energy Analysis, Nicholas Tsoulfanidis, Gazendra Suwal

UMR-MEC Conference on Energy / UMR-DNR Conference on Energy

Net Energy Analysis has been used to compare coal and nuclear power plants. Net Energy Analysis is a method by which a system is studied in terms of the energy needed to construct and operate every unit or item associated with that system, its effects to the environment and the energy produced by the system. The results of the comparison are expressed as the ratio of the total energy output divided by the total energy input.

Environmental Manpower And Training, Harold M. Cota

Civil and Environmental Engineering

No abstract provided.

Ole Miss Engineer 1977

Ole Miss Engineer

No abstract provided.

An Annotated Bibliography Of Ocs Documents In Maine, Maine State Planning Office

Maine Collection

An Annotated Bibliography of OCS Documents in Maine

Outer Continental Shelf Memorandum 1

Compiled by Edward H. Shenton & Charles S. Colgan

Maine Coastal Program, Maine State Planning Office, Augusta, Maine, 1977.

Contents: 1. Introduction / 2. OCS - General / 3. OCS - Federal Regulations / 4. Economic Aspects / 5. Environmental Studies / 6. Oil Spills - Effects and Studies / 7. Onshore Effects / 8. The North Sea Experience / 9. Legal Aspects / 10. Petroleum Drilling Technology

Computer Storage Of Traffic Volume Data, Marvin Virgin

Kentucky Transportation Center Research Report

LOADVOL is a program developed to assimilate raw traffic volume data into a more readily usable form. Several identifying parameters are added to enhance the clarity and to extend the utility of the data base.

Criteria were set to detect possibly erroneous traffic count data. LOADVOL detects and replaces "erroneous" data with simulated data. LOADVOL produces cards which contain the orignal data which are replaced. Thus, the original data can be reviewed, and it can be ascertained whether it is erroneous or was affected by a special event, holiday, location, traffic recorder malfunction, or some other occurrence.

UPDATE, a second …

Cracking In Continuously Reinforced Concrete Pavements, James H. Havens, Robert C. Deen, Assaf S. Rahal, Wm. Vernon Azevedo

Kentucky Transportation Center Research Report

The objective of this study was to monitor placement and evaluate performance of continuously reinforced concrete pavement with an emphasis on determining the time of cracking and crack interval. This paper reports on the design and construction practice for CRCP in Kentucky. Data on crack frequency and time of cracking is also included in an attempt to further explain the cracking pattern associated with CRCP.

Drug Induced Changes In Ventricular Defibrillation Threshold, Charles F. Babbs

Open Access Dissertations

No abstract provided.

Reliability Of Mos Devices : Threshold Voltage Instability, Sesha Rajamani Shankar

Dissertations

A very important factor in the reliability of MOS devices is the stability of the threshold voltage. This dissertation examines the effects of positive and negative gate bias stresses at elevated temperatures on the drift in the threshold voltage of MOS field effect transistors.

Over 400 p-channel enhancement mode devices were life tested under different temperature and gate bias conditions for periods of up to 15,000 hours, and the drift in their threshold voltages studied and analyzed. It was found that under both negative and positive bias-temperature tests, the threshold voltage drifted towards more negative values, though in the negative …

Vacuum-Freezing Vapor-Desublimation High Pressure Ice-Melting Process For Water Desalination, Ting-Chuan Chung

Nuclear Engineering ETDs

The present thesis study makes a preliminary technical feasibility study and a preliminary economic study of the Vacuum-Freezing Vapor-Desublimation High Pressure Ice-melting Process that was first introduced by C. Y. Cheng and W. Cheng. In the study, the processing steps are divided up into several key unit operations. Some of these key unit operations are similar to some operations in existing vacuum freezing processes and have already been studied extensively. Some key operations are, however, unique to the process under study. The feasibility study is made by borrowing information for the unit operations that have already been studied in connection …

The Development And Testing Of A Fluidic/Pneumatic Position Servo, David Lyle Portin

Dissertations and Theses

This thesis reviews the design and analysis of a fluidic/pneumatic position servo. Rolling diaphragm piston actuators are used for the system drive, and a hydrostatic gas journal bearing is used as the position sensor. The servo has a 1 inch range which is monitored using an electrical capacitive position transducer that was built as an integral part of the system.

Open-loop frequency response testing provides the basis for a mathematical model of the system.

The servo response is linear at frequencies up to 3 Hertz.

The frequency response appeared to be limited by the design of the gas bearing sensor, …

A Synthesis Of Modern Rail Transportation Engineering Practices, Donald D. Cook

Open Access Master's Theses (through 2010)

The 1970’s will go down in history as the decade in which the University of Nebraska – Civil Engineering Department expanded its academic interest to include the field of transportation. Railroad transportation and activities related to the instruction of planning, design and operation of railroads become a most important part of the transportation curriculum when viewed in the above context. Unfortunately, no modern comprehensive textbook exists for use in a rail transportation course.

The intent of this thesis is to provide a comprehensive source of data for use in the course of study in Railroad Transportation being developed by the …

How To Use Electronic Information Exchange System, Computerized Conferencing & Communications Center, Murray Turoff, Trudy Johnson-Lenz, Peter Johnson-Lenz

Computerized Conferencing and Communications Center Reports

This booklet is an introduction to the use of EIES, Electronic Information Exchange System. EIES (pronounced "eyes") is a very powerful computerized system that allows you to communicate with others on the system in a number of different ways. The intent of this booklet is to teach you the simpler parts of the system and to make you comfortable with using the one-page User's Guide For Electronic Information Exchange System. Later on, as you gain more experience with EIES, you may want to learn some of the more advanced features and tricks. EIES has been designed so that you have …

Constant-Rate-Of-Strain And Controlled-Gradient Consolidation Testing, C. Thomas Gorman, Tommy C. Hopkins, Robert C. Deen, Vincent P. Drnevich

Kentucky Transportation Center Research Report

Controlled-gradient (CG), constant-rate-of-strain (CRS), and conventional incremental-loading (STD) consolidation testing are compared and evaluated. Undisturbed samples of tbree soils common to Kentucky were used in the testing program. Results of 15 CG, 14 CRS, and 32 STD consolidation tests are evaluated. Feasibility of the new test methods for routine testing is briefly discussed and recommendations are made for refinements in testing procedures.

Evaluation Of Organic Additives For Use In Zinc Electrowinning, R. C. Kerby, H. E. Jackson, Thomas J. O'Keefe, Yar Ming Wang

Materials Science and Engineering Faculty Research & Creative Works

Organic additives are used extensively in zinc electrowinning to assist in controlling the process. A cyclic voltammetry technique has been developed to provide a rapid, quantitative evaluation of the effectiveness of selected organic additives in minimizing the deleterious effects that impurities, such as antimony, have on zinc deposition. Results have indicated that animal glues are more effective than the other organic additives tested, which included several gums, enzymes, and amino acids, in relation to the current efficiency of zinc production. Of the various animal glues compared in this research, the most effective appeared to have average molecular weights in the …

Highway Finance: County Roads - City Streets, Herpic

Indiana Local Technical Assistance Program (LTAP) Publications

This document provides historical bench-mark dates for highway finances in Indiana. It also provides information on the Motor Vehicle Highway Account and the Load Road & Street Account.