Index Catalog // ScholarsArchive@OSU

Transpiration cooling of a rotating disk

Creator:: Cosart, William Primm
Resource Type:: Dissertation
Full Text:: approved: Redacted for privacy Dr. J. G. Knudsen/Dr. C. E. Wicks Heat transfer efficients were

Turbulent flow of liquid-liquid dispersions : drop size, friction losses, and velocity distributions

Creator:: Ward, John Philip
Abstract:: The momentum transfer characteristics of liquid-liquid dispersions were studied under conditions of turbulent flow in a cirular conduit. Experiments were conducted to obtain drop size, friction factors and velocity profiles for three organic phases dispersed in water. The test sections consisted of straight copper tubes 1-inch OD and 0.830-inch ID....
Resource Type:: Dissertation

Fouling characteristics of cooling tower water containing corrosion inhibitors

Creator:: Santoso, Elisabeth
Abstract:: The fouling characteristics of cooling tower water containing various corrosion inhibitors and other additives on heat transfer surface have been investigated. Corrosion inhibitors investigated included zinc-chromate and phosphates. In addition, additives including polyacrylate and phosphonate (HEDP and AMP) were used to determine their effectiveness as antifoulants. The tests were conducted...
Resource Type:: Dissertation
Full Text:: TOWER WATER CONTAINING CORROSION INHIBITORS. Abstract approved : Redacted for Privacy Dr. James G

The effect of copolymer and iron on the fouling characteristics of cooling tower water containing corrosion inhibitors

Creator:: Abu-Al-Saud, Abdullah A.
Abstract:: Various antifoulant treatment programs and the considerations necessary for the effective use of such programs were examined. Two different groups of tests, with and without iron contamination, have been carried out on the effectiveness of several of the state-of-the-art copolymers (PA, HEDP, AA/HPA, AA/MA, SS/MA and AA/SA) in the inhibition...
Resource Type:: Dissertation
Full Text:: Containing Corrosion Inhibitors. Redacted for Privacy Abstract approved: Dr. James G. Knudsen Various

Deposition characteristics of magnesium silicate and calcium carbonate in cooling tower water

Creator:: Lee, Sai Heep
Abstract:: Deposition characteristics of magnesium silicate and calcium carbonate on a heated surface in cooling tower water using city water as make-up was investigated. Flow velocity, bulk temperature and calcium hardness were maintained constant at 5.3 ft/ sec, 95°F and 150 ppm as CaCO₃ respectively whereas surface temperature varied from 105°F...
Resource Type:: Masters Thesis
Full Text:: for Privacy DR. JAMES G. KNUDSEN Deposition characteristics of magnesium silicate and calcium

Heat transfer in a fluidized bed tubular heat exchanger

Creator:: Genetti, William Ernest
Resource Type:: Dissertation
Full Text:: is cor- related with an equation based on a particle mode heat transfer mechanism, i. e. Nu

Effects of water quality and surface temperature on the scaling characteristics of cooling tower water

Creator:: Lahm, Lawrence
Abstract:: The fouling of cooling tower water was investigated as a function of heater surface temperature and water quality. In particular, the effects on fouling of the addition of calcium in excess of the amounts required for saturation were examined. First, the average bulk water temperature was 97 ± 1 degree...
Resource Type:: Masters Thesis
Full Text:: . Abstract approved: Redacted for Privacy o4. James G. Knudsen The fouling of cooling tower water was

Heat transfer between moving beds of solids and a vertical tube

Creator:: Obuskovic, Nevenka S.
Abstract:: Heat transfer to moving packed beds of solids has been studied extensively but predictions are usually specific to the experimenter's own equipment. In order to obtain a more general predictive equation, the heat transfer coefficient was measured for a single vertical tube immersed in a moving packed bed of glass...
Resource Type:: Dissertation
Full Text:: ACKNOWLEDGEMENT I would like to express my thanks to my major professor Dr. James G. Knudsen for all the

Nucleate boiling in a vertical annular duct

Creator:: Daniel, Tyrone
Abstract:: Nucleate boiling of water in a vertical annulus was studied. The test section was entirely of stainless steel construction and was formed by a length of stainless steel tubing with a stainless steel heater rod centered in it. Two test sections with length to diameter ratios of 18 and 33...
Resource Type:: Masters Thesis
Full Text:: Privacy (I ir James G. Knudsen / / Nucleate boiling of water in a vertical annulus was studied. The

Heat transfer between moving beds of solids and a transverse finned tube

Creator:: Obuskovic, Nevenka S.
Resource Type:: Masters Thesis
Full Text:: Solids and a Transverse Finned Tube Abstract approved: Redacted for Privacy Dr. James G. Knudsen The

Alkalinity effects on the scaling of simulated cooling tower water

Creator:: Morse, Robert Weber
Resource Type:: Masters Thesis
Full Text:: SCALING OF SIMU- LATED COOIXIG TOWER WATER Abstract approved: Redacted for Privacy James G. nudsen The

Local shell-side heat transfer coefficients in the vicinity of baffles in tubular heat exchanges

Creator:: Gurushapkariah, Mysore Shamanna
Resource Type:: Masters Thesis
Full Text:: the following acknowledgements: To T&e National Scienc Found:3tion for the granting of a

Fouling of heat transfer surfaces under forced circulation boiling condition

Creator:: Imdakm, Abdussalam Omar
Abstract:: Various conditions of heat flux in the range of 46600 to 93300 Btu/hr ft² and water velocity in the range of 1.44 to 2.16 ft/sec were tested under carefully controlled conditions to determine their effect on scale formation, and the characteristics of scale. Inlet temperature and bulk temperature were maintained...
Resource Type:: Masters Thesis
Full Text:: . James G. Knudsen for his guidance and professional assistance throughout the duration of this

Heat transfer coefficients for condensation of liquid metal vapors inside a vertical tube

Creator:: Cohn, Paul Daniel
Resource Type:: Masters Thesis
Full Text:: Data ••• •. • •••• .••••• .• • • •. • •••• • • 30 Wat e r •••••••••••••••••••••••.,•••••••••••• 30

Drop size distributions produced by turbulent pipe flow of immiscible liquids

Creator:: Collins, Stanley Browning
Abstract:: Drop size distributions produced by the turbulent pipe flow of dispersions of immiscible liquids were measured photographically. A mathematical model was developed which predicted both the shape of the experimentally observed distributions and the experimentally observed kinetics of the breakup process. The mutually saturated water and organic phases were pumped...
Resource Type:: Dissertation
Full Text:: PRODUCED BY TURBULENT PIPE FLOW OF IMMISCIBLE LIQUIDS Abstract approved: (Signature Dr. James G

Effect of upstream disturbances on the rate of heat transfer from a short section of heated pipe

Creator:: Faruqui, Azimuddin Ahmad
Resource Type:: Masters Thesis
Full Text:: . James G. Knudsen for his encouragement and assistance during the course of the present study, to Mr. R

Local and average heat transfer coefficients in a fluidized bad heat exchanger

Creator:: Noe, Alphonse Roman
Abstract:: Local and average heat transfer coefficients for heat transfer from internal tubes to a fluidized bed were investigated. A fluidized bed heat exchanger was compared to a baffled and an unbaffled exchanger in terms of power and heat transfer surface area requirements. The fluidized bed heat exchanger consisted of a...
Resource Type:: Masters Thesis
Full Text:: concentration, superficial gas velocity, and different locations of the heat transfer surfac e. Redacted for

Calcium carbonate scaling in a deluged dry cooling system

Creator:: Barton, Kathleen Patricia
Abstract:: Scaling characteristics of calcium carbonate on a heated surface in a deluged dry cooling system were investigated. Bulk temperature of the deluge water was maintained constant at 90°F. Air flow velocity was maintained constant at 181 cfm., and deluge water flow was maintained at the minimum level that provided thorough...
Resource Type:: Masters Thesis
Full Text:: System Abstract approved: Redacted for Privacy Dr..-James G.rkinudsen Scaling characteristics of

Momentum transfer in climbing-film flow in an annular duct

Creator:: Kim, Duk Hwang
Abstract:: Momentum transfer in an annular duct with upward gas-Iiquid flow was studied under the condition that the liquid flowed as a film only on the inner core of the annulus, the outer wall remaining dry. Previous workers have studied climbing and falling liquid films in tubes or on vertical planes....
Resource Type:: Dissertation
Full Text:: IwouldliketoexPressmygratefulappreciationtothe f ollowing: To Dr. James G. Knudsen, professor of Chernical Engineering, for suggesting the

Turbulent mixing across adjacent subchannels in packed rod bundles using conductivity measurement

Creator:: Chan, Pui Yuen
Abstract:: Turbulent mixing across adjacent subchannels in packed rod bundles was studied using conductivity measurement and sodium chloride solution as the tracer. Single phase water was the fluid investigated. The packed rod bundles were seven stainless steel tubes, 1.905 cm in diameter and 152.4 cm long, arranged in hexagonal close-packed configuration...
Resource Type:: Masters Thesis
Full Text:: privacyAbstract approved: James G. KnudAn Turbulent mixing across adjacent subchannels in packed rod bundles was

Turbulent mixing between adjacent triangular channels : measurement by two techniques

Creator:: Scheel, Randall Lee
Resource Type:: Masters Thesis
Full Text:: for Privacy James G. Knudsen Single phase turbulent interchange of mass between adjacent triangular

Velocity and temperature profiles for turbulent flow of liquid-liquid dispersions in pipes

Creator:: Faruqui, Azimuddin Ahmad
Resource Type:: Dissertation
Full Text:: LIST OF fzc,urs (CoUnued) 1'ICU}E 24. tersity of MLnoneter flutd . 90 LIST OF T.U.ES TÁtI3LE

Water quality effect on fouling of the heat transfer surface under forced circulation boiling condition

Creator:: Yoon, Woon-young
Resource Type:: Masters Thesis
Full Text:: approved : Redacted for Privacy , Dr. James G. Knudsen The effect of water quality having a total

Local and over-all heat transfer coefficients in baffled heat exchangers

Creator:: Narayanan, Krishnaswami
Resource Type:: Dissertation
Full Text:: requirements for the degree of DOCTOR OF PHILOSOPHY June 1962 e APPROVED: P ofessor of Chemical

Friction losses for water flowing in non-circular ducts

Creator:: Mohandes, Abdolhosein
Abstract:: Friction factors were measured for water flowing in ducts made up of two rods held between two flat plates. Three rod diameters of 0.50, 1.00 and 1.50 inches were used. The spacings between rods varied from 0.0 to 0.32 inch. It was found that the concept of hydraulic diameter was...
Resource Type:: Masters Thesis
Full Text:: ACKNOWLEDGMENT The author wishes to extend appreciation to; Dr. James G. Knudsen, Professor and Associate Dean

Momentum and heat transfer characteristics of liquid-liquid dispersions in turbulent flow in an annulus

Creator:: Dev, Lachhman
Resource Type:: Dissertation
Full Text:: PHILOSOPHY AN ANNULUS Abstract approved: James G. Knudsen The momentum and heat transfer characteristics

Friction loss and heat transfer characteristics for turbulent flow of liquid-liquid dispersions

Creator:: Legan, Robert William
Resource Type:: Masters Thesis
Full Text:: relation was used: 0. 25 1.75 = 133.42 P D4.75 W e The effective viscosity of the dispersions

Pressure drop in annuli containing plain and transverse fin tubes

Creator:: Braun, Frederick William
Resource Type:: Masters Thesis
Full Text:: OF MODIFIED \NUUTS 16 Figure 2 SCH(A TIC FLOW DIAGRAM 20 Figure 3 PHOTOGRAPH OF EXPERIk4ENTAL E

Heat transfer between immiscible liquids for concurrent flow

Creator:: Grover, Shamsher Singh
Resource Type:: Masters Thesis
Full Text:: of Dr. James G. Knudsen, to whom the writer is deeply grateful for very inspiring and capable

Calcium carbonate scaling characteristics of cooling tower water

Creator:: Coates, Kenneth Edwin
Abstract:: Scaling characteristics of calcium carbonate on a heated surface in cooling tower water was investigated. Bulk temperature was maintained constant at 95°F. Flow velocities and surface temperatures ranged from 3 ft/sec to 10.3 ft/sec and from 105°F to 170°F respectively. City water was used as make-up for two different water...
Resource Type:: Masters Thesis
Full Text:: Cooling Tower Water __AI Abstract approved: Redacted for Privacy DIT. JAMES MKNUDSIN Scaling

Thermal conductivity of emulsions made up of two immiscible liquids

Creator:: Wang, Ruey-Hsi
Resource Type:: Masters Thesis
Full Text:: the degree of Ï.ASTER OF SCIT CE June 1957 APPROVED: Pr of e of ChemIcal rigIneering In

The effect of capillary tube dimensions on the viscosity of liquid-liquid dispersions in laminar flow

Creator:: Ichikawa, Shinya
Abstract:: The purpose of this research was to study the effect of capillary tube dimensions on the apparent viscosity of an unstable dispersion of two immiscible liquids. The study was limited to laminar flow at a constant temperature. The dispersions were composed of a commercial solvent, Shellsolv 360, manufactured by the...
Resource Type:: Masters Thesis
Full Text:: The author wishes to express his sincere apprecia- tion to Dr. James G. Knudsen for suggesting the

Local shell-side heat transfer coefficients in baffled tubular heat exchangers

Creator:: Ambrose, Tommy W.
Resource Type:: Dissertation
Full Text:: . llow Bate Investigated • . • • • 66 E~erimental Procedure • • • • • . . 67 Local Heat Transfer

Heat transfer and pressure profiles in the vicinity of annular orifices

Creator:: Williams, Peter Stanton
Resource Type:: Masters Thesis
Full Text:: author wishes to express his gratitude to Dr. James G. Knudsen for his guidance during the course of

Calcium sulfate scaling under boiling conditions

Creator:: Cates, David Lawrence
Abstract:: A bench-scale thermosiphon reboiler system was constructed end used to investigate the scaling behavior of aqueous calcium sulfate under flow boiling conditions. Scaling data were collected at constant heat flux from eight experimental runs. Five different constant heat fluxes were used ranging from 45000 to 93000 Btu/hr. ft², in increments...
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privacy 6/7 D . James G. Knudsen T A bench-scale thermosiphon reboiler system was

A comparison of three probes used for measuring local heat transfer coefficients

Creator:: Bergstad, Ralph Hundley
Resource Type:: Masters Thesis
Full Text:: writer is privileged to make the following acknowledgements: To Dr. James G. Knudsen for his

Natural and forced turbulent mixing in rod bundles

Creator:: Jovanovic, Goran N.
Abstract:: The effects of mass flow rate and subchannel configuration on the turbulent interchange between adjacent subchannel in simulated rod bundle were investigated. The simulated rod bundle was made by arranging seven 1.913 cm diameter acrylic plastic rods in an equilateral triangular pattern in a tube 8.89 cm inside diameter. The...
Resource Type:: Masters Thesis
Full Text:: AND FORCED TURBULENT MIXING IN ROD BUNDLES Redacted for privacy Abstract approved: James G. Knudsen

A study of two-phase liquid-liquid flow in pipes

Creator:: Soot, Peet Mati
Abstract:: The pressure drop for two-phase liquid-liquid flow is theoretically predicted for each flow regime. Empirical correlations, which are applicable in all flow regimes, are also presented for holdup as well as pressure drop. The experimental study covered bubble and drop flow regimes. The discontinuous phase was injected by nozzle into...
Resource Type:: Dissertation
Full Text:: -LIQUID FLOW IN PIPES Abstract approved: James G. Knudsen c /97O ate1) The pressure drop for two-phase

The rise of large gas bubbles through tubes filled with viscous liquids

Creator:: Brown, Gary Leigh
Abstract:: An analysis of the velocity and the shape of large gas bubbles rising through tubes filled with viscous liquids is presented. Four tubes, with diameters ranging from 0. 446 inches to 3. 97 inches, and three liquids, with viscosities ranging from one to 200 centipoise, were used in the study....
Resource Type:: Masters Thesis
Full Text:: liquids. They found that when the bubbles were not in contact with the wall, i. e. , in large bodies

Mass transfer at the solid-liquid interface for climbing film flow in an annular duct

Creator:: Sutey, Anthony Michael
Resource Type:: Dissertation
Full Text:: DUCT Abstract approved: Redacted for Privacy Dr. Jame G. Knudsen A method utilizing a diffusion

Incipient boiling and burnout heat flux for subcooled water flowing in annuli containing heated concentric wires

Creator:: Nolan, Lawrence Lyle
Abstract:: Incipient boiling and burnout heat fluxes were studied for sub-cooled forced convection annular flow. Small wires varying from 0.010 to 0.020 inch in diameter were used as the inner core of the annulus and a one inch ID glass tube 24 inches long was used as the outer tube. This...
Resource Type:: Masters Thesis
Full Text:: incipient (i. e. the point where nucleate boiling begins) boiling for subcooled, forced convection flow

Surface temperature effects on the fouling characteristics of cooling water

Creator:: Story, Michael Kenneth
Abstract:: A cooling tower system was built and fouling resistances were studied for cooling water flowing over a heated tubular surface. The cooling water studied was formulated in an effort to match industrial cooling water quality. The water used in this study had an average Ryznar Stability Index of 6.23 and...
Resource Type:: Masters Thesis
Full Text:: assistance essential to this project. Special thanks are extended to Dr. James G. Knudsen for his obtaining

Nucleate boiling of various fluids in a thermosiphon reboiler

Creator:: Oufer, Lounes
Abstract:: A study of nucleate boiling of water, four alcohols and three ethanol-water mixtures was conducted in a vertical thermosiphon reboiler. The test section consisted of a 1/2- inch diameter electrically heated stainless-steel rod jacketed by a 15-inch long pyrex glass tube. Two different inside diameters of the glass tube corresponding...
Resource Type:: Masters Thesis
Full Text:: Reboiler Abstract approved: Redacted for Privacy Dr. James Gi. Knudsen A study of nucleate boiling of

Single phase turbulent mixing between adjacent channels in rod bundles

Creator:: Galbraith, Kirk Powell
Abstract:: The turbulent interchange of matter between parallel adjacent subchannels in a simulated rod bundle for single phase flow was investigated to determine the effects of mass flow rate and rod spacing. The simulated rod bundle was made by placing six 1-inch diameter rods in a square-square array. The overall test...
Resource Type:: Dissertation
Full Text:: TURBULENT MIXING BETWEEN ADJACENT CHANNELS IN ROD WIT-NM F Redacted for PrivacyAbstract approved: James G

Drag coefficients for flat plates, spheres, and cylinders moving at low Reynolds numbers in a viscous fluid

Creator:: Jones, Alva Merle
Resource Type:: Masters Thesis
Full Text:: was possible to determine an e xpression relating dra g coefficients , Reynolds numbers , and L/D

Heat transfer characteristics of liquid-liquid dispersions flowing in an annulus

Creator:: Corlett, Thomas Lee
Resource Type:: Masters Thesis
Full Text:: approved: Redacted for Privacy James G. Knudsen The heat transfer characteristics of liquid-liquid

A study of climbing-film flow characteristics of various liquids and air in an annular duct

Creator:: Vierra, George Joseph
Abstract:: Momentum transfer in climbing-film flow in an annular duct was investigated. Air and various liquids, with a wide range of viscosities and surface tensions, were investigated. The two phases flowed co-currently upward, the liquid climbing as a thin film on the inner wail while the outer wall remained dry. The...
Resource Type:: Dissertation
Full Text:: approved: Redacted for Privacy James G. Kriudsen Momentum transfer in climbing-film flow in an annular

Fouling characteristics of cooling tower water : pH effect

Creator:: Roy, Bhasker Vilva
Abstract:: The fouling characteristics of simulated cooling tower water flowing over a heated metallic surface has been studied. The bulk temperature of the water was maintained around 95°F. Mainly three different water qualities with respect to calcium hardness level were investigated. The pH was controlled by the addition of hydrochloric acid....
Resource Type:: Masters Thesis
Full Text:: : Redacted for Privacy Dr. James G. Knudsen The fouling characteristics of simulated cooling tower water

Motion picture study of a vertical climbing film in an annular duct

Creator:: Scott, Bruce Douglas
Abstract:: This paper describes a study of two-phase gas-liquid vertical annular climbing film flow. Using a high speed Fastax movie camera, motion was slowed sufficiently to facilitate detailed analysis of the climbing film structure, based on single frame projections. The dynamic characteristics of the liquid film could likewise be obtained, though...
Resource Type:: Masters Thesis
Full Text:: : Dr. James G. Knudsen This paper describes a study of two-phase gas-liquid vertical annular climbing

Fouling characteristics of a desalted crude oil

Creator:: Lin, Dah-cheng
Abstract:: The fouling characteristics of a desalted crude oil were investigated in a systematic investigation. There are two main parts in this study, the dry bulk tests (dehydrated crude oil) and the wet bulk tests (to which desalter brine was added). Three barrels of desalted crude oil provided by Amoco Oil...
Resource Type:: Masters Thesis
Full Text:: sincere appreciation to the following: My advisor, Dr. James G. Knudsen, for his advice and guidance

Local shell-side heat transfer coefficients and pressure drop in a tubular heat exchanger with orifice baffles

Creator:: Lee, Kyu Sung
Resource Type:: Masters Thesis
Full Text:: deep appreciation to Dr. James G. Knudsen for his inspiring guidance and valuable suggestions

Turbulent heat transfer in annuli at large diameter ratios

Creator:: Unzicker, William Frank
Abstract:: Heat transfer from the inner wall of an annulus to subcooled water in turbulent parallel flow was studied. The inner core of the annulus consisted of wires varying from 0.0019 to 0.0197 inch in diameter. The outer tube consisted of a 1.01 inch diameter glass tube 24 inches long. Diameter...
Resource Type:: Masters Thesis
Full Text:: transfer from the inner surface of concentric pipes (i. e. at low diameter ratios). Turbulent flow is

Plain and finned tube scaling in a deluged dry cooling system

Creator:: Frederick, Nicholas D.
Resource Type:: Masters Thesis
Full Text:: Cooling System. Abstract approved: Redacted for Privacy Dr. James G. Knudsen Scaling characteristics

Heat transfer from finned tubes under moderate scaling conditions

Creator:: McCluer, Henry Karl
Resource Type:: Masters Thesis
Full Text:: efficiency - dimensionless vii 0 NOMENCLATURE (CON'T) Subscripts app apparent e equivalent

Solubilities of various salts in cooling tower water and a correlation to determine their scaling threshold

Creator:: Herbig, Scott M.
Resource Type:: Masters Thesis
Full Text:: privacyAbstract approved: Dr. James G. Knudsen t if A common problem in cooling water systems is the deposition

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