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Velocity Protlles in Turbulent Pipe Flow: Newtonian and NonNewtonian Fluids
behavior of explosive devices which depend upon the rate of gas production. An additional benefit of this project is the effect of the area to volume ratio in bomb chamber work.
D . C. Bogue and A . B. Metzner, Unioerszly of Delaware
M s . 62-214
Velocity profile measurements are reported for the turbulent core region of viscous Newtonian and non-Kewtonian fluids, Turbulent velocity profiles for purely viscous non-Newtonian fluids are essentially the same as for Newtonian fluids when normalized with mean velociry or expressed using velocity defect parameter. Ms. 62-794
33pages, inchding Bfigures, 1 table
84.00
Initial Instability of a Viscous Fluid InterFace
William E. Ranz and William M . Dreier, Jr., Uniuersity of Minnesota Microsecond photomicrographs of liquid column being injected into another liquid obtained, showing typical behavior of common liquid pairs. A theoretical treatment by Taylor has been extended and a semiempirical model developed.
Ms. 62-205
30 pages, including 10figures
$3.00
W. R. Wilcox, PaciJic Semiconductors, Inc.
81.00
Dynamics of an Adaptive Optimizing Chemical Process
V. Rajaraman, University of Wisconsin Block-diagram method of analvzing time-varying systems used to determine dynamic characteristics of an adaptive optimizing chemical process. Adaptive feature of over-all system described by simple mathematical model which has configuration of a servomechanism. Ms. 6 2 - 2 1 2
30 Pages, including 9 figures
Mass Transfer Characteristics of a Venturi Liquid-Gas Contastod
W . G. Bauer, A . G. Fredrickson, and €I. M . Tsuchiya, University of Minnesota An experimental study of a mass transfer device n.hich eliminates certain undesirable features of conventional apparatus. Liquid culture can be pumped through this simple meter-type venturi, and gas can be introduced at the throat, resulting in a mixture of finely dispersed bubbles in the liquid culture. Has noteworthy advantages in a waste treatment process or for fermentation. IMS.62-277
4 3 p a g e s , including 19figures
Polymer Sulfonation Without Cross-linking; phate System
55.00
?he SOa-Phos-
A . F. Turbak, ESSG Research and Eqineering Company
Ms. 62-279
Distillation is shown to be effective method for ultra-high purity materials. Special equations derived for batch distillation of low impurity-content materials are much simpler than the usual. Total and minimum reflux conditions are considered. 70 pages, including 7 k u r e
$2.00
High molecular weight polyaromatics can be reproducibly sulfonated to water soluble products by use of an organo-soluble SOa-phosphate complex. The activity of SO3 can now be controlled over a wide range with a single complexing agent.
Ultrapuritlcation by Distillation
M s . 62-2 7 7
72 pages, includang Zfigures, 2 tables
83.0U
72pages. Including ?figure, 4 tables
82.00
Design of Polyether Urethane Elostic Sealants
A . Damusis, J . M . McClellan, H . G. Wissman, C . W . Hamilton, and K . C. Frisch, Wyandotte Chemicals Corl,oration Data on design of sealants with wide range of physical properties, with comparisons using molecular weight per triol cross-link as common parameter. Accelerated aging studies also made on a large number of sealing compounds. Biological test program on selected formulations carried out to determine susceptibility to attack by microorganisms commonly encountered. Sealants studied show promise for use in many applications.
M s . 62-220
29jiages, including 7 j g u r z s , 8 tables
83.00
Comparative Reacrivities of Petroleum Cokes C. F . Gray and W . J . Metrailer, flumumble Oil and Rejning Company
Gaseous “Freeze Out” Temperatures. A Method of Estimating the “Freeze Out“ Temperalure of Solid Propellant Gases
J . E. Sinclair and Gary D . Hutton, Nacal Postgraduaie School A method has been developed that makes the estimation of “freeze out” temperatures from solid propellant combustion rapid and easy. This property is of value in predicting the
Reactivity data on nine commercially available cokes determined by exposing calcined samples to a flowing stream of (20% at 1742’ F. Data on granular cakes and molded carbon bodies included. Process used to prepare coke a major factor in reactivity, with ash and iron content of secondary importance.
Ms. 62-224
72pages, including S.figures, 2 tables
82.00
(Conlinued on page 747)
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RESEARCH RESULTS A low-Temperature Calorimeter for Measuring Enthalpy Changes in Gar Mixtures under Pressure Arthur C . Jenkins and Oren E , Berwalt, Linde Company Flow calorimeter can be used to measure enthalpy changes in gas mixtures partially condensed when cooled from room temperature to within a 0' to - 1 9 5 O C . range a t constant pressures up to 100 atm. For these the method is believed reliable to &3% or better; for gases noncondensable under experimental conditions to rt 1.570. Ms. 62-229 17pages, including 2jigures, 4 tables $2.00 Improved Formulas for Heat Transfer Calculation in Multipass Exchangers
F. M . Tiller and L . F. Kahl, Uniuersily of Houston, and R . S. Ramalho, University of Rochester Problem of 1-2 exchangers has been restudied, assuming that over-all coefficient of heat transfer varies as a linear function of temperature. Graphs similar to those of Ten Broeck have been drawn, taking into consideration this variation. Differential heat balance and rate equations were changed to appropriate dimensionless form and solved by a n iterative procedure using a digital computer. Ms. 62-230 15 pages, including $,figures, 1 table $2.00 Application of intrinsic Radiotracers to the Control of an IronPrecipitation Process
J . F. Kircher, J . L. McFarling, P . Gluck, and D . N . Sunderman, Battelle Memorial Instilute Iron-59 has been used to demonstrate the application of a radiotracer in controlling impurity removal from a nickel refinery stream. The results show the method to be rapid, accurate, and amenable to automatic control. Radioactivity levels in this process application are shown to be well below tolerance limits. Ms.62-237 16pages, including Jfigurcs, 2 tables t2.00 Hydrodynamics of Slat Trays
B. D . Gilesand C. E . Dryden, Ohio Stale University A low cost gas-liquid contacting slat tray has been designed, ideal for low liquid flow rates and/or high hold-up applications. Essentially a Turbogrid, but uses narrower slot openings combined with conventional downcomer-weir-baffle arrangement for liquid flow control. Hydrodynamics similar to that of sieve trays, but completely different from Turbogrids. .MS.62-234 29 pages, including dfigures $3.00 Use of a Radio Frequency Ptasma Jet in Chemical Synthesis
H . W . burner, J . J . Correa, Leon Streng, and C . S. Stokes, Research Institute of Temple Uniwrsity Production of oxides of nitrogen, acetylene, and hydrogen cyanide, with yield in CzHz exceeding 28%, based on carbon input. Proves usefulness of radio frequency jet, although better results were obtained with high power d.c. jet reported in 1960. MS.62-236 13 pages, including dfigures, 3 tables $2.00 Production of Hydrogen Cyanide Using a Plasma Jet
Hans W . Leutner, Research Instilute of Temple Uniuersity Describes four methods for H C N from elements and from hydrogen-, nitrogen-, and carbon-containing compounds. Yield exceeds SOY0 conversion, based on carbon input, with acetylene the main by-product. Higher power units than 2.7 kw./hr. (required for 1 gram mole HCN) might result in better conversion. Ms. 62-237 73pages, including 4 tables, 2figures $2.00 Control of a Distillation Column for Producing High-Purify Overheads and Bottoms Streams
J . S. Mocrek, Robert E. Otto, and Theodore J . Williams, Monsanto Chemical Company Results from extensive digital computer study of dynamics and control of large cross-flow tray columns. Temperature indexed control of sidestream flow rate promising, and system described. Does not include results from actual operating columns. Ms. 62-246 48pages, including 24jgures, 4 tables $5.00
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