By T. M. Flynn, B. W. Birmingham (auth.), K. D. Timmerhaus (eds.)

Invited Papers.- Cryogenics and nationwide Goals.- A evaluate of the opportunity of Liquid-Methane gas for Supersonic Transports.- Slush and Subcooled Propellants for Lunar and Interplanetary Missions.- Thermodynamic Properties.- Equilibrium Gas-Phase Compositions of Ethane and Ethylene in Binary combinations with Helium and Neon less than 150°K and a Correlation for Deviations from the Geometric suggest Combining Rule.- The Kinetics of Adsorption of Methane and Nitrogen from Hydrogen Gas.- Benedict-Webb-Rubin Equation of kingdom for Methane at Cryogenic Conditions.- a brand new Calorimeter for the actual choice of the Enthalpy of Pressurized Fluids all the way down to 160°R.- houses of Materials.- Simultaneous size of Young’s Modulus and Shear Modulus at Low Temperatures.- Tensile homes and Notch durability of Groove Welds in Wrought and solid Aluminum Alloys at Cryogenic Temperatures.- Low-Temperature Mechanical homes of Welded and Brazed Copper.- Superconductivity.- A excessive box Magnet Combining Superconductors with Water-Cooled Conductors.- huge Superconducting Baseball Magnet.- checking out Composite Superconductor for the LRL Baseball Magnet.- brief reaction and balance Limits of Superconducting Composite twine Following a Flux Jump.- Flux-Flow experiences and balance standards of Nb-Ti Strips.- The Transition to Current-Sharing in Composite Conductors.- balance of Internally Cooled Superconductors.- results of Nucleate Cooling Limits at the functionality of Small Ti-Nb Solenoids.- warmth Transfer.- Non-Boiling and picture Boiling warmth move to a Saturated bathtub of Liquid Helium.- Boiling warmth move and strain Drop of Liquid Helium-I less than compelled flow in a Helically Coiled Tube.- Nucleate Boiling warmth move from an Oscillating Sphere in Liquid Nitrogen.- A Miniature warmth Exchanger for Simultaneous Para-Orthohydrogen Conversion and warmth Transfer.- observe on warmth Exchanger layout for Cryogenic Propellant Tanks.- A Compact Perforated-Plate warmth Exchanger.- Insulation.- Analytical versions for Airborne-Cryogenic-Insulation Thermal Performance.- assessment of an Externally Insulated Spacecraft Dewar.- Experimental selection of Thermal lodging Coefficients.- Thermal Diffusivity of Powder Insulation.- Predictions of the complete Emissivity of Metals at Cryogenic Temperatures.- Radiative features of Cryodeposits for Room Temperature Black physique Radiation.- Fluid Dynamics.- Thermal Stratification in Closed Cryogenic Containers.- Approximate Criterion for Prediction of stream Oscillations in Supercritical Fluid warmth Exchangers.- The interplay of regulate Valves with Oscillations Generated in a wide Water to Hydrogen warmth Exchanger.- Cavitation in Liquid Cryogens.- An research of the consequences of Spatial, Thermal, and speed Inhomogeneities on Two-Phase, unmarried part Cryogenic Choked Flow.- Two-Phase (Liquid-Vapor), Mass-Limiting move with Hydrogen and Nitrogen.- Instrumentation.- Cryogenic circulation study Facility of the nationwide Bureau of Standards.- Prelaunch Slush Hydrogen Loading elements Affecting Instrumentation and Control.- Use of Capacitance point Gauging for Prelaunch Loading of Slush Hydrogen.- development on Cryogenic Thermocouples.- Fluid part and Temperature dimension with a unmarried Sensor.- lighting fixtures in Cryogenic and Noncryogenic Fluids.- Refrigeration Systems.- An research of the Stirling-Cycle Refrigerator.- Steady-State Operation of the Idealized Vuilleumier Refrigerator.- Compact Cryogenic Thermal Regenerator Performance.- loose Displacer Refrigeration.- Dynamical results of the Rhombic force for Miniature Cooling Engines.- improvement of a pragmatic Thermodynamic Cycle for a Space-Borne Hydrogen Reliquefier.- A 3.6°K Reciprocating Refrigerator.- improvement of Novel fuel Bearing Supported Cryogenic growth Turbines.- Miniature Cryogenic fridge Turboalternators.- keep watch over approach for Temperatures and Liquid point among 4.2° and 1°K.- Closed-Cycle fridges for Hydrogen Targets.- Cryogenic Systems.- Solidified Oxygen for inhaling Space.- Slush Hydrogen Pumping features utilizing a Centrifugal-Type Pump.- try result of a Zero-Gravity Cryogenic section Separator.- Hydrogen Peroxide Motor Exhaust Heating to elements at Cryogenic Temperatures within the Vacuum of Space.- research of Propagation disasters of versatile Linear formed fees at Cryogenic Temperatures.- The habit of general Liquid Hydrogen objective platforms lower than Simulated Failure Modes.

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Additional resources for Advances in Cryogenic Engineering: Proceedings of the 1968 Cryogenic Engineering Conference Case Western Reserve University Cleveland, Ohio August 19–21, 1968

Sample text

In this type of operation there are two distinct mass transfer processes : the diffusion of the impurity through the gas phase to the surface of the adsorbent, and diffusion into the particle. If both of these processes were extremely rapid, equilibrium would exist at all points in the adsorbent bed, and a plot of the adsorber outlet concentration as a function of time would be a step function. Usually, however, one or both of the mass transfer processes are relatively slow, with the result that the concentration-time (breakthrough) curve assurnes an S shape.

Am. Inst. ehern. Enqrs. 445 (1945) o Hobson ood Thodos, ehom. EIlCJ. Prog. 04 1? 01~ 10 __L-__J--L~L-__J -__-L~-LJ-__- L__- " 20 60 100 200 600 1000 2000 4000 ~ fL Fig. 3. Comparison of ja values. 5 The Kinetics oe Adsorption oe Methane and Nitrogen from Hydrogen Gas 45 D p term of the Reynolds number, since D p is defined as the diameter of a sphere having the same external surface area as the irregularly shaped particle. Unfortunately, the values of ks (Table I) cannot be directly compared with the values of other investigators, since there is no general correlation for k s as there is for k g' Several statements can be made regarding the ks values, however.

Tsiklis, Doklady Akad. Nauk. , 91(6):1361 (1953). 17. J. M. Prausnitz and A. L. , 9(1):5 (1963). 18. W. T. Ziegler, B. S. Kirk, J. C. Mullins, and A. R. Berquist, "Calculation of the Vapor Pressure and Heats of Vaporization and Sublimation of Liquids and Solids Below One Atmosphere Pressure. " Contract No. C. (December 31,1964). 40 M. J. Hiza and A. G. Duncan 19. W. T. Ziegler, B. S. Kirk, and J. C. lVIullins, "Calculation of the Vapor Pressure and Heats of Vaporization and Sublimation of Liquids and Solids Especially Below One Atmosphere Pressure.

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