Engineering Commons^™

Construction Of A Class I, Type A Surface Containing Paradise Slag Aggregate (Experimental) Drakesboro-Paradise Road (Ky 176), Robert L. Florence

Kentucky Transportation Center Research Report

The Drakesboro-Paradise Road (KY 176), extending 2.84 miles from its junction with KY 70 at Drakesboro to a point on KY 176 approximately 1.8 miles southwest of Paradise, was surfaced in early August with a 1 1/4-in, course of Class I, Type A bituminous concrete containing 40 percent wet-bottom-boiler slag from the T.V.A. power plant at Paradise, Kentucky. The use of the slag was on an experimental basis, and the objective was to determine the feasibility of utilizing the slag as an anti-skid aggregate in other, high-type,bituminous surfacing in that area. A laboratory investigation preceded the field experiment, and the …

Manufactured (Crushed), Limestone, Fine Aggregate For Portland Cement Concrete, James H. Havens

Kentucky Transportation Center Research Report

Manufactured (crushed), limestone, fine aggregate for use in structural concrete, concrete base courses for pavements, or as may otherwise be designated, shall be manufactured by crushing and sizing aggregate-quality limestones and dolomites. Manufactured (crushed), limestone, fine aggregate shall not be used in concrete surface courses for pavements or bridge decks unless specifically authorized by the Engineer.

Simultaneous Development Of Velocity And Temperature Profiles In The Annulus With Laminar Flow And Both Walls At Constant Temperatures, Stephen Lothair Ritchie

Theses and Dissertations

Forced convection heat transfer in the entrance region of tubes and ducts has been studied extensively since the pioneering work of Graetz. Most of the published solutions for axial flow heat transfer are based on the idealization of either fully established or uniform velocity profiles with developing temperature.

The Irish Plumbing And Heating Engineer, October 1964 (Complete Issue)

Building Services Engineering

No abstract provided.

Decomposition Of Diulte Hydrogen Peroxide In Alkaline Solutions, Harold M. Cota, T. Katan, M. Chin, F. J. Schoenweis

Civil and Environmental Engineering

No abstract provided.

Investigation Of Effects Of Cold Forming On Mechanical Properties, Kenneth W. Karren, George Winter

CCFSS Library (1939 - present)

INTRODUCTION All of the divisions of this report consist of either experimental or theoretical investigations of the various aspects of predicting the magnitude and distribution of changes in the mechanical properties (particularly the yield strength) of coldformed members. The prior work performed under this project, was conducted to determine the changes brought about in the mechanical properties of structural sheet steels by (1) simple uniform uni-directional prestrain of varying amounts and (2) simple cold working caused by cold forming sheet into corners as is commonly done in light gage cold formed structural members. Included in this report are: a study …

Analysis And Discussion Of The Effect Of Heat Loss From The "Insulated" Face Of Thin Foil Heat Flux Meters, Mont Johnson Stevens

Theses and Dissertations

The object of this work was to investigate the effect that heat losses from the "insulated" face of thin foil heat flux meters has upon the sensitivity of heat flux meters. In the past it has been characteristic of any analysis done on heat flux meters to assume that the insulation on the back face of the foil was a perfect insulator and thereby neglect the effects of heat losses from this "insulated" face. It is hoped that the information given in this thesis will be of value in determining how the geometric and heat transfer parameters affect the operation …

Water Yields In Utah Developing A State Water Plan, Jay M. Bagley, Roland W. Jeppson, Cleve H. Milligan

Reports

Need and Importance of Study

Utah's problems of water use and water supply are becoming increasingly important. They are also becoming increasingly complex as competition for our water resources becomes more keen among various types of uses. In the formulation of plans for sound and efficient use of water it is essential to know the characteristics of occurrence and use of water supplies so that requirements can be balanced most effectively and economically against supply. This ordinarily requires basic hydrologic data to determine relations among climate, water losses, and water yield from watersheds.

Such data are often unavailable - especially …

Investigation Of Aerodynamic Hysteresis, Gerald Heber Peterson

Theses and Dissertations

The word hysteresis is derived from a Greek word meaning "to lag 'behind". As specifically applied to fluid flow around bodies with transient angles of attack in and near the stall region, "aerodynamic hysteresis" is used to describe the effect of delay in boundary layer separation and reattachment upon the lift, drag and pitching moment. Experimental work done on airfoils by H. Studer showed that for increasing angles of attack flow "separation is delayed to an angle of attack appreciably greater than that for a stationary airfoil. On the return movement, re-establishment of a smooth flow is also delayed." [1]* …

The Irish Plumbing And Heating Engineer, September 1964 (Complete Issue)

Building Services Engineering

No abstract provided.

An Experimental Determination Of Ultrasonic Wave Velocities In Plastics As Functions Of Temperature, Ned D. Arnold

Electrical and Computer Engineering ETDs

This thesis reports the results of an experimental investigation into the effects of temperature on the velocity of ultrasonic longitudinal acoustic waves through various plastics.

Design Of Regeneratively Cooled, High Temperature, Clean Gas Plasma, Roger Carver Bartlett

Theses and Dissertations

The objective of this thesis was the design of a regeneratively cooled, high temperature, clean gas plasma generator facility. This facility was desired to extend the high temperature research capabilities of the Department of Mechanical Engineering.

The Performance Of Beams And Columns Continuously-Braced With Diaphragms, Gordon P. Fisher, S. J. Errera

CCFSS Library (1939 - present)

INTRODUCTION Under the general title of "Performance of Steel-Framed Buildings and Structural Members Braced with Light-Gage Steel Diaphragms", sponsored at Cornell University by the American Iron and Steel Institute, an investigation has been proceeding in two separate but closely interrelated phases, referred to as: Subproject A - Performance of Steel-Framed Buildings Braced with Light-Gage Steel Diaphragms Subproject B - Performance of Beams and Columns Continuously-Braced with Diaphragms. The investigation now referred to as Subproject B was sponsored by the American Institute of Steel Construction from June, 1961 to June, 1963 after which A.I.S.I. assumed sponsorship with the cooperation of A.I.S.C. …

Reliability Of Aircraft Altitude Estimates By Ground Observers, Euegene W. Benson

Masters Theses

No abstract provided.

The Irish Plumbing And Heating Engineer, August 1964 (Complete Issue)

Building Services Engineering

No abstract provided.

The Driving-Point Impedance Of An Electrically Short Cylindrical Antenna In The Ionosphere, William E. Blair

Electrical and Computer Engineering ETDs

1.0 Since the advent of satellites, there has been con­siderable interest in both military and peacetime uses of satellites as research instruments, communication relays, and transportation vehicles. In most cases, it is necessary to communicate with the satellites for purposes of trans­mitting and receiving information.

Worldwide Training In Air Pollution Control, Harold M. Cota

Civil and Environmental Engineering

A survey of academic training in air pollution control was recently conducted for the APCA Education Council. Questionnaires were sent to faculty at over 200 universities in the United States and 150 universities around the world. This paper lists the schools which completed the questionnaire and includes the number of both undergraduate and graduate courses available, the academic department, and the range of research projects presently underway. The findings indicate that air pollution is a subject being taught worldwide. Most schools predict that their current level of instruction will not change in the next five years. Additions and corrections are …

Annual Report Fiscal Year 1963-64, Kentucky Highway Materials Research Laboratory

Kentucky Transportation Center Research Report

No abstract provided.

Use Of Preformed, Compressed, Neoprene Seals In Joints Of Concrete Bridge Decks, Ronald D. Hughes

Kentucky Transportation Center Research Report

Two types of seals are proposed for installation in contraction and construction joints in Ramp A, Ramp B, and the Main-Line structures from Third Street to Preston Street on Project I64-2(24)4, Jefferson County. The majority of contraction and construction joints are to be sealed with the preformed, compressed, neoprene seals. Specific joints in each structure will be sealed with cold-applied, elastomeric-type, joint-sealing compound; and these will be used as control joints for evaluation of the preformed, compressed, neoprene seals. Installation of all seals will be observed, and inspections will be made periodically. The performance of mastic-type sealants in joints in …

The Irish Plumbing And Heating Engineer, July 1964 (Complete Issue)

Building Services Engineering

No abstract provided.

Application Of Radioactive Tracers In The Study Of Diffusional Phenomena, Rodolfo Cilento

Theses

The study of mass transfer of a solute through a solvent can be greatly facilitated by the use of radioactive tracers.

This experiment was developed to demonstrate that by using radioactive tracers very small quantities of matter that would be very difficult to test chemically, can not only be tested but easily followed without disturbing the apparatus in which the diffusion is taking place.

Oleic Acid tagged with radioactive iodine (I¹³¹) was diffused through hexane at constant temperature in a glass column, one inch in diameter and thirty-six inches long.

The diffusion of Oleic Acid was followed by …

Gas Phase Fugacity Coefficients, Harvey Joel Klee

Theses

A method is presented for calculation of fugacity coefficients in gas mixtures. This work is based on a recent paper by Leland, Gamson, and Chappelear, wherein they presented a new method for evaluation of ideal K values. The information required for the method presented here includes pure component physical properties, and generalized tables or equations for compressibility factors, fugacity coefficients, and real gas enthalpy departure terms. Pseudo-critical temperatures and pressures for the mixture are calculated using the expressions presented by Leland and Mueller.

Five different binary systems consisting of paraffin hydro-carbon and CO₂ mixtures containing 318 separate points were …

Decomposition Of Diacetone Alcohol In Packed Beds Of Ion Exchange Resins, Arthur Donald Lahr, Rafael Juan Puente-Duany

Theses

A study was made of the rate of decomposition of diacetone alcohol by anion exchange resins in a packed bed under adiabatic and isothermal conditions. Two different resins were compared: a conventional type gel structure resin, Amberlite IRA-400, and a newly marketed maorore-ticular resin, Amberlyst A-26.

In a substrate with low water content, the rate of decomposition of diacetone alcohol by Amberlite IRA-400 vas controlled by intraparticle diffusion. This vas due to shrinkage of the polymer chain matrix of the resin. When dry diacetone alcohol feed was introduced the amount of decomposition was not measurable.

It was found that the …

An Oxidation Of Para-Nitrotoluene, Albert Edward Meisinger

Theses

The original purpose of this paper was to investigate the reaction kinetics of the air oxidation of para-nitro-toluene (PNT) to para-nitrobenzoic acid (PNBA). The reaction was to be carried out at atmospheric pressure and at temperatures between 100 and 175° C, and in the presence of an oxidation catalyst. However the main problem became one of trying to find a catalyst that would work at these conditions. The catalysts used were nickel acetate, cobaltous acetate, manganous acetate and manganese naphthenate. Hydrogen peroxide was tried as an accelerator for the reaction. None of these worked since no yield greater than 0.01% …

Effect Of Temperature On Rate Of Absorption Of Ammonia By Water In Packed Tower, Chhotu B. Patel

Theses

Measurements of the rate of absorption of ammonia in water have been made using a 4-inch diameter Lucite column With porcelain Raschig rings packed to a height of 3 feet, Tests were made with water rates of 462 and 695 lbs./ hr-ft² and a constant gas rate of 130 lbs/hr-ft² with liquid temperature verying from 72° F. to 110° F.

At constant liquid and gas rate, the mass transfer coefficient, Κ_Ga, decreases with increasing liquid temperature and in represented by straight lines on plot of Κ_Ga versus temperature. The variation of Κ_Ga …

Esterification Of Oleic Acid, Niranjan Muljibhai Patel

Theses

The purpose of this paper is to determine the effects of catalyst concentrations and temperatures on the rate of reaction and energy of activation in the reaction system of oleic acid and oleyl alcohol. It is suggested by Flory^2,3 that the p-toluene-sulfonic acid catalyzed esterification reactions follow a second order mechanism. The p-toluene-sulfonic acid is used in the present work.

Two different catalyst concentrations were used at two different temperatures. The uncatalyzed reaction at the same temperatures was also studied. The specific rate constants are calculated and from that, the energy of activations are calculated using the Arrhenius equation. …

Diffusion Of Single And Multicomponent Solutes From Capillaries, Oleh S. Sklepkowycz

Theses

The purpose of this investigation was to determine the diffusion coefficients of several single and multi-component solutes, and to establish the relations between the diffusivity, the solute composition) and the diffusion rate. Such information pertinent to the extraction and leaching operations, can not be found in literature.

The procedure developed by Piret, Wbel, and Armstrong (25), involving observation of the extraction rate of two-phase mixtures from straight capillaries, was adopted and verified on a known sodium chloride-water system.

In the course of the experimental work diffusion coefficients more determined for ursolic acid, palmitic acid, and tripalmitin in methyl isobutyl ketone. …

The Reaction Of Urea With Primary Alkyl Bromides, Ronald Lewis Stabile

Theses

The reactions between urea and the primary alkyl bromides from 1-bromobutane to 1-bromooctane were investigated. The effect of concentration, temperature, and solvents on the yield was determined. Second order reaction rate constants at temperature of 80°, 100°, and 132°C were calculated from the data for yield. The yield is defined as the percent of bromine from the alkyl bromide titrated as bromide ion.

The results indicate that the reactions of the primary alkyl bromides with urea are similar; the reaction being of the second order and the ex. tent of reaction being approximately the same for each alkyl bromide for …

Thermodynamic Properties Of Perfluoropropane, Frank Fang

Theses

The thermodynamic properties of perfluoropropane (octafluoropropane) have been determined by the author for the saturated region from -100°C to the critical temperature, 71°C. Properties in the superheated region were likewise determined by the author for temperatures from -35°C to 300°C and over a pressure range from 1 atmosphere to 40 atmospheres. Enthalpies, entropies, densities, and specific volumes are reported for both vapor and liquid phases where applicable. The datum point used in these calculations is based on a zero value for vapor enthalpy and vapor entropy at -100°C and 0.0183 atmospheres.

Constants used in the Benedict-Webb-Rubin equation of state were …

Interphase Gas-Liquid Mass Transfer Study In A Horizontal Channel, Bruce R. Marx

Theses

The rate of transfer of hydrogen sulfide and of carbon dioxide from an atmosphere of the gas saturated with water to a flowing stream of water in a horizontal channel was investigated over a range of water flow velocities and absolute pressures.

Mathematical models describing the system in terms of the penetration and boundary layer theories were inadequate when used to calculate the diffusivity of each gas in water at various conditions. The results of the hydrogen sulfide-water system study shows a relationship between the diffusivity, the interfacial concentration and the liquid flow rate. The calculated diffusivity of the carbon …