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Articles 13201 - 13230 of 14251
Full-Text Articles in Entire DC Network
Interfaces Of Steam Electric Power Plants With Aquatic Ecosystems, Gerald J. Lauer, William T. Waller, Guy R. Lanza
Interfaces Of Steam Electric Power Plants With Aquatic Ecosystems, Gerald J. Lauer, William T. Waller, Guy R. Lanza
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
Growth and reproduction may be stimulated by increased temperature in the cooling system and thermal plume during seasons when ambient water temperature is less than optimum, but growth, reproduction and survival are reduced when the elevated temperatures become excessive. Some fish species congregate in the warm thermal plumes during cold seasons but are excluded from this living space by temperatures above their preference in the summer. However, the warm refuge provided by a thermal plume in cold seasons can be a death trap if a power plant shuts down suddenly and exposes the fish to cold shock exceeding their lower …
Mini-Computer Control Of Electrical Energy Demand, Thomas P. Hertel
Mini-Computer Control Of Electrical Energy Demand, Thomas P. Hertel
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
Electrical power demand control results in huge dollar savings for the medium to large user. Meramec Mining Company realizes an average $4,500.00 savings from an average $150,000.00 monthly charge because of demand control efforts.
This paper discusses the planning, designing, implementing, and auditing of the mini-computer system at Meramec Mining Company. No detailed discussion of the actual computer coding is included.
Auditing Program For Effective Energy Conservation, S. Noble Robinson
Auditing Program For Effective Energy Conservation, S. Noble Robinson
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
Mallinckrodt Chemical Works has developed and is using a special audit format to identify conservation opportunities for all its utilities. Manufacturing, Utilities, R & D, and Engineering personnel are collected together for several days during which time a process or operation is subjected to an intense analyses of its utilities consumption, a brain-storming of conservation ideas, and then an "on-the-spot" engineering analysis of the economics and feasibility of each idea. This technique is a fast, comprehensive way to assess conservation potentials while committing the attention of those operating groups that can implement the ideas.
Monsanto's Energy Conservation Program, Ray E. Doerr
Monsanto's Energy Conservation Program, Ray E. Doerr
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
Energy conservation is not new to Monsanto. We have had utility and process improvement programs for many years. But the motivation of these programs was to reduce our operating costs and improve profits. However, these programs did result in substantial energy savings.
Now, however, Monsanto is placing major emphasis on a broad-scale energy conservation program for all Monsanto locations. The energy saving potential is great and is necessary because of the energy shortage as well as the rapidly escalating energy costs.
Energy Conservation In The Manufacturing Process, Paul H. Kaiser
Energy Conservation In The Manufacturing Process, Paul H. Kaiser
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
My presentation will cover the basic procedure used by the Emerson Electric Co. to conserve energy in Its operations. And because people frequently tell me how much they like or dislike our television sets, and how concerned they are or are not about the depth of our involvement in furnishing material for the Defense Department, at this point I would like to give a short commercial. Hopefully, it will dispel misconceptions, and define the use of energy in Emerson's operations.
Uniroyal's Approach To Energy Management, J. C. Madigan
Uniroyal's Approach To Energy Management, J. C. Madigan
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
Uniroyal makes selected consumer and industrial products including chemicals, plastics, and rubber articles in 90 plants worldwide. About 90% of raw materials are petroleum-based and about $40 million will be spent on energy in 1974.
Energy management includes centralized monitoring and feedback of usage per unit of production at all factories; energy audits; educational programs; suggestion systems; operational, maintenance, and capital investment programs. Specific items are detailed. Organization places responsibility on Divisional Coordinators backed by President and Divisional Vice Presidents, coached and assisted by Corporate Coordinator and Engineering Specialists. Results in 1973 were very encouraging.
The Role Of Natural Gas And Lng In Supplying Our Energy Needs, D. L. Caldwell
The Role Of Natural Gas And Lng In Supplying Our Energy Needs, D. L. Caldwell
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
The domestic natural gas industry experienced a spectacular growth during the two decades from 1950 to 1970. Demand for gas continues to rise and production has peaked at a time when the price for other energy sources is escalating. A price increase can stimulate production over the short term. Massive LNG imports can help the intermediate term supply. The long term natural gas situation is bleak and substitute natural gas sources must be employed. A conservation program and reordering of priorities for energy sources is essential for the United States as well as most industrial nations.
Oil Spill Containment And Removal In Arctic Ecosystems, Wilfred R. Mcleod, Diana L. Mcleod
Oil Spill Containment And Removal In Arctic Ecosystems, Wilfred R. Mcleod, Diana L. Mcleod
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
Statistics on 16 arctic and subarctic oil spills, their locations, the amount of oil spilled, combatant schemes used, and causes for the spills were culled from the literature. This information has been used to analyze the effectiveness of available chemical, mechanical, and destructive means of oil recovery or disposal under arctic and subarctic conditions.
The choice of the best cleanup procedures to follow in any particular instance is clouded by a number of variables and must be weighed against such considerations as wind, sea, and ice conditions, properties of the oil, and effects of chemicals on marine and wildlife. Access …
A Technique For Improving Stability Of Petroleum Reservoir Simulation Models, M. D. Arnold, T. C. Wilson, A. Herbert Harvey
A Technique For Improving Stability Of Petroleum Reservoir Simulation Models, M. D. Arnold, T. C. Wilson, A. Herbert Harvey
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
Computational instability may occur in the mathematical simulation of hydrocarbon reservoirs when small inaccuracies in the calculated pressures cause loss of diagonal dominance in the matrix of coefficients. The problem can be resolved by the use of a more precise technique for computation of pressures. However, this stability problem is still troublesome to users of certain types of reservoir simulators. A computational technique which has been found effective in resolving the problem is presented.
An Environmental And Energy Information System, G. U. Ulrikson, M. P. Guthrie, G. M. Caton, H. F. Mcduffie
An Environmental And Energy Information System, G. U. Ulrikson, M. P. Guthrie, G. M. Caton, H. F. Mcduffie
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
The Environmental Information System Office (EISO) at Oak Ridge National Laboratory (ORNL) provides information support for researchers and administrators involved with energy and environmental policy and progress. Multiple EISO activities for various governmental agencies have resulted in establishment of compatible data bases concerned with energy and environmental information, methods for effectively developing these, development and computer display of numerical data summaries, and reports evaluating published information. Direction is provided by continuing dialogue between users and information system staff.
The Assessment Of Environmental Impacts At Nuclear Power Generating Stations, Thomas H. Row, J. R. Mcwherter
The Assessment Of Environmental Impacts At Nuclear Power Generating Stations, Thomas H. Row, J. R. Mcwherter
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
The Federal actions that are required with regard to nuclear power stations are the granting of a construction permit and later the issuance of a license to operate the station. Since the Atomic Energy Commission (AEC) is responsible for these actions, the Commission is also responsible for preparation of an environmental statement on the proposed actions. The National Laboratories including the one at Oak Ridge are used as part of the staff in preparing the statements.
The staff makes an independent determination of the plant effluents and their dispersions. The impact of these and plant construction on the environment are …
Monitoring And Control Of Electric Power Usage, Robert B. Webb
Monitoring And Control Of Electric Power Usage, Robert B. Webb
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
At the Armco Kansas City Works the consumption of Electrical Power is monitored and controlled by a General Purpose Computer located in the Electric Furnace Dept. This computer monitors the power used in the entire plant through the power metering system. The computer can limit the' power to the electric arc melting furnaces and in this manner control the demand level during peak hours. The computer can also detect meter failures. The computer system collects data which enables management to detect and analyze variations in electrical power consumption.
Energy Conservation: Constructive But No Cure, N. V. Poer
Energy Conservation: Constructive But No Cure, N. V. Poer
UMR-MEC Conference on Energy / UMR-DNR Conference on Energy
Let me share with you a quotation from a report issued bv the Chase Manhattan Bank while the Arab oil embargo was still in effect. "Reportedly, the annual cost of a gasoline rationing program would amount to $1.4 billion. Based upon past results, if that much money was devoted to an exploratory effort, it would be potentially capable of discovering more than 2 billion barrels of petroleum. That amount of petroleum would be equal to 19 percent more than all the gasoline consumed in privately owned automobiles in 1973."
While the threat of rationing has disappeared with an end to …
Diffusion Coefficients Of N-Heptane And N-Decane In N-Alkanes And N-Alcohols At Several Temperatures, James W. Moore, Robert M. Wellek
Diffusion Coefficients Of N-Heptane And N-Decane In N-Alkanes And N-Alcohols At Several Temperatures, James W. Moore, Robert M. Wellek
Chemical and Biochemical Engineering Faculty Research & Creative Works
The diffusion coefficients of the solutes n-heptane and n-decane were measured in the series of alkane solvents n-hexane through n-decane and in the alcohol solvents n-hexanol and n-heptanol. Mutual and self-diffusivities in most cases were measured at the temperatures of 20°, 25°, 30°, and 40°C. Concentrations of the diffusion species were in the infinitely dilute region. An unsteady state porous frit technique was used with carbon-14 tagged diffusion species. The diffusion coefficients measured were compared with various liquid diffusivity prediction correlations. © 1974, American Chemical Society. All rights reserved.
An Experimental Study Of Parametric Pump, Khalid Omar Ranginwala
An Experimental Study Of Parametric Pump, Khalid Omar Ranginwala
Theses
In this research for Master's Project, the possibility for separation of glucose and fructose by parametric pumping was investigated. In this research activated carbon was used as adsorbent. First Langmuir's isotherms for glucose and fructose were experimentally found. These results were utilized in the thermal parametric pumping. The pump was run semicontinuously. Parametric pumping was also carried out with KCl +H2O solution using a resin as adsorbent, and the 'b' value of KCl was found.
The Condensation Of Vapor On A Horizontal Rotating Square Tube., Suresh Chandra
The Condensation Of Vapor On A Horizontal Rotating Square Tube., Suresh Chandra
Chemical and Biological Engineering ETDs
Heat transfer measurements were made for steam vapor condensing at one atmosphere on the outer surface of a horizontal square tube with a side of one inch, when rotated at between O and 1950 rpm. The Froude number (FR) was based on the side length. Three distinct heat-transfer regimes were observed and are correlated with FR. The first is gravitation controlled condensate flow when FR is less than 2.0 and the condensing film heat-transfer coefficient decreases. When 2.0
An Experimental Study Of Equilibrium Parametric Pumps, John A. Park
An Experimental Study Of Equilibrium Parametric Pumps, John A. Park
Theses
Parametric pumping is a separation process characterized by periodic changes in axial displacement, coupled with synchronized changes in some variable affecting the position of the interphase equilibrium. Both continuous and semicontinuous pumps were investigated at various operating conditions using a model system of toluene-n-hep-tane on a silica gel adsorbent. It has been shown that when the penetration distance for the cold cycle is less than or equal to that for the hot cycle and the height of the column, the pump has the capacity of complete removal of solute from one product stream. A quantity which is important in determining …
A Study Of Fluid Flow Entering A Sharp-Edged Channel, Rocco Racano
A Study Of Fluid Flow Entering A Sharp-Edged Channel, Rocco Racano
Theses
Experimental investigations were carried out on an newtonian fluid In the two dimensional case through the regions of a sharp-edged entrance and exit. Qualitative and quantitative results were compared to a variation of a two dimensional case of converging flow in a capillary as originally derived by Oka and proposed by Philippoff. In addition velocity profiles were taken in the entrance region. Furthermore, the effect of temperature gradients in the slit region with their resulting optical effects were considered. The methods used to obtain these goals were photoelasticity and streak photography.
Results were four, to be consistent with the theory …
Anionic Polymerization Of A Series Of Cyclocarbosiloxanes, William W. Knickmeyer
Anionic Polymerization Of A Series Of Cyclocarbosiloxanes, William W. Knickmeyer
Doctoral Dissertations
"A study has been made on the anionic polymerization of a series of cyclocarbosiloxanes of the type: [IMAGE] where n was varied from 2 to 8. The polymerization reaction in benzene, was initiated using cesium trihexyl silanolate, a unique organic soluble liquid catalysts. Benzene served as both a solvent and to shift the position of the NMR SiCH3 polymer peak away from the monomer peak making it feasible to follow the kinetics on a Varian EM-360 Nuclear Magnetic Resonance Spectrometer. Hexamethylphosphoramide (HMPA) was used as a promoter to solvate the initiator ions and thus increasing the polymerization rate. It …
In Vitro Studies Of Lipid Uptake By Medical Grade Silicone Rubbers Used For Heart Valve Balls, Shu Hua Wu
In Vitro Studies Of Lipid Uptake By Medical Grade Silicone Rubbers Used For Heart Valve Balls, Shu Hua Wu
Doctoral Dissertations
"Various chemical and physical aspects of high lipid absorption by medical grade silicone rubber and the dynamic mechanical properties of lipid-rubber systems were studied in order to provide an insight into the problem of 'variance' of these materials when subjected to 'in vitro' and 'in vivo' environments. Wide variations of post cure procedures of the silicone rubber were studied. Different post cures did not appreciably affect the mechanical properties of the silicone rubber. Mass transfer studies demonstrated that the diffusion of linolenic acid into a silicone rubber slab is a purely physical diffusion process (D = 3.2 x 10-3 …
Transition Boiling Of Normal Pentane From A Horizontal Flat Gold Surface, Ronald M. Canon
Transition Boiling Of Normal Pentane From A Horizontal Flat Gold Surface, Ronald M. Canon
Doctoral Dissertations
"The characteristic boiling curve for Normal Pentane was determined at 1 atmosphere pressure with particular attention devoted to the transition boiling region. The heat transfer surface was a horizontal, gold-plated, copper disc.
Stability analysis was employed to demonstrate why previous investigators have had only limited success in collecting data in the transition region and to provide a valid basis for equipment designed to operate in this region.
A method of predicting the transition region boiling curve from the nucleate curve and the Liedenfrost point is presented. The method was found to predict the transition boiling of Normal Pentane, Freon 12, …
Process Optimization By Flow Sheet Simulation, Larry Dale Gaines
Process Optimization By Flow Sheet Simulation, Larry Dale Gaines
Doctoral Dissertations
"PROPS, (Process Optimization System), has been used to simulate and optimize the Universal Oil Products solid phosphoric acid catalyst process for producing gasoline. PROPS, a modified version of CHESS (Chemical Engineering Simulation System), performs a complete design and economic evaluation of the process for each set of independent variables. The computational time during optimization was reduced by the use of a regression equation to determine K-values as a function of temperature and pressure. K-value data used for the regression was generated from the Chao-Seader correlation using mixtures of the gasoline components to be encountered during optimization. The regression equation produces …
Nucleate Boiling Of N-Pentane, N-Hexane And Several Mixtures Of The Two From Various Tube Arrays, Kenneth Wayne Wall
Nucleate Boiling Of N-Pentane, N-Hexane And Several Mixtures Of The Two From Various Tube Arrays, Kenneth Wayne Wall
Doctoral Dissertations
"An investigation of nucleate boiling heat transfer in saturated pools of Normal Pentane, Normal Hexane and several mixtures of the two was conducted. The fluids were boiled from gold-plated, copper, cylindrical heat transfer surfaces, 4.96 inches long, and 1.048 inch in diameter. The heat transfer elements were boiled in varying vertical tube arrays at a pressure of 14.70 psia.
It was found that the mixtures boiled with a lower heat transfer coefficient than that for either pure component when boiled alone. When boiling in any of the tube bundle arrangements, the heat transfer coefficients for the upper tubes in the …
Film Formation On Anodically Polarized Lead, H. Vaidyanathan, Ram A. Narasagoudar, Thomas J. O'Keefe, William Joseph James, James W. Johnson
Film Formation On Anodically Polarized Lead, H. Vaidyanathan, Ram A. Narasagoudar, Thomas J. O'Keefe, William Joseph James, James W. Johnson
Materials Science and Engineering Faculty Research & Creative Works
No abstract provided.
Studies On The Yield And Rate Of Lysine Production Using Brevibacterium Lactofermentum., Ho Bao Nhan
Studies On The Yield And Rate Of Lysine Production Using Brevibacterium Lactofermentum., Ho Bao Nhan
Masters Theses
"The production of lysine by a microbial method was studied. Brevibacterium lactofermentum (ATCC 21086) was used to accumulate lysine. T1\ese experiments were done in shake flasks and a 7.5-liter fermentor.
Lysine and residual glucose were determined at fixed intervals of time during each run. Cell counts were also made for some experiments. Temperature and pH were kept constant during the runs and dissolved oxygen was recorded continuously.
The effects of casamino acid, soy peptone, certain amino acids, glucose and agitation on the rate of production and the yield were studied. It appears that reducing any one of the variables will …
Hydrodynamic Mixing Model Applied To A Continuous Stirred-Tank Reactor With And Without Second-Order Reaction, Leon L. Otte
Hydrodynamic Mixing Model Applied To A Continuous Stirred-Tank Reactor With And Without Second-Order Reaction, Leon L. Otte
Doctoral Dissertations
Paper 1: "A hydrodynamic mixing (HDM) model, used to calculate the steady-state spatial distribution of conversion for a second-order reaction in a continuous stirred-tank reactor (CSTR) for non-premixed reactants was developed and contrasted with other methods. The HDM model is based on a segmental description of the reactor and includes turbulent mixing effects in each segment. As a test of the model, the experimental results obtained from a tubular reactor were found to be very well represented for a range of reactant ratios. Spatial distributions of concentration and segregation intensity (degree of mixing) within the CSTR were determined for a …
Intrinsic Viscosity Studies Of Linear Polyethylene Fractions In Good And Poor Solvents, J. S. Chiang, J. L. Zakin, Kenneth G. Mayhan
Intrinsic Viscosity Studies Of Linear Polyethylene Fractions In Good And Poor Solvents, J. S. Chiang, J. L. Zakin, Kenneth G. Mayhan
Chemical and Biochemical Engineering Faculty Research & Creative Works
No abstract provided.
Modified One‐At‐A‐Time Optimization, Marshall E. Findley
Modified One‐At‐A‐Time Optimization, Marshall E. Findley
Chemical and Biochemical Engineering Faculty Research & Creative Works
An optimization method has been developed that searches one variable at a time under the conditions that previously searched variables are at their approximate optimum and variables to be searched later are constant. This method provides the optimum and also information on the effects of the variables. The method is based on the Partan and Powell methods and on assuming linear partial derivatives of the objective function with respect to any given variable. The procedure involves searching each variable separately with other variables either constant or varied so that they remain at their estimated optimum for the given conditions. This …
Propane-Carbon Dioxide And Propylene-Carbon Dioxide Mixture Adsorption In 5a Molecular Sieves., Bui Van Hong
Propane-Carbon Dioxide And Propylene-Carbon Dioxide Mixture Adsorption In 5a Molecular Sieves., Bui Van Hong
Masters Theses
"Measurements of the adsorption on SA molecular sieves have established that at 1 atmosphere and 24.0°c, both systems, propane-carbon dioxide and propylene-carbon dioxide, form ideal solution adsorbed phases. Total mass adsorbed ranges from 112 to 207 milligrams/gram sorbent for propane-carbon dioxide and from 130 to 207 milligrams/gram sorbent for propylene-carbon dioxide"-- Abstract, p. ii
A Study Of Pollution Abatement From The F-15 Jet Engine Test Stand, Gary Joseph Fennewald
A Study Of Pollution Abatement From The F-15 Jet Engine Test Stand, Gary Joseph Fennewald
Masters Theses
"The pollutants emitted from jet engine test stands are carbon particles, unburned hydrocarbons, carbon monoxide, and the oxides of nitrogen. This work is a study of various ways of removing these pollutants from the test stand exhaust. The methods investigated include absorption, adsorption, electrostatic precipitation, filtration, catalytic reduction and oxidation, and thermal oxidation.
For abatement of nitrogen oxides, none of the present methods is considered to provide adequate technical reliability to proceed with an installation at this time. Each of the methods for removal of nitrogen oxides has high capital and operating cost; and, in many cases, secondary pollution problems …