Total Flow Rates in an Isotope Separation System

1964 ◽  
Vol 3 (1) ◽  
pp. 83-85 ◽  
Author(s):  
Alexander Apelblat ◽  
Gideon Pery
Keyword(s):  
Isotope Separation ◽  
Separation System ◽  
Total Flow ◽  
Flow Rates

Briefs - "Total Flow Rates in an Isotope Separation System"

1964 ◽  
Vol 56 (2) ◽  
pp. 69-69
Author(s):  
Alexander. Apelblat ◽  
Gideon. Pery
Keyword(s):  
Isotope Separation ◽  
Separation System ◽  
Total Flow ◽  
Flow Rates

scholarly journals The creeping motion of liquid drops through a circular tube of comparable diameter

1975 ◽  
Vol 71 (2) ◽  
pp. 361-383 ◽  
Author(s):  
B. P. Ho ◽  
L. G. Leal
Keyword(s):  
Pressure Drop ◽  
Circular Tube ◽  
Total Flow ◽  
Flow Rates ◽  
Liquid Drops ◽  
Neutrally Buoyant ◽  
Creeping Motion

The creeping motion through a circular tube of neutrally buoyant Newtonian drops which have an undeformed radius comparable to that of the tube was studied experimentally. Both a Newtonian and a viscoelastic suspending fluid were used in order to determine the influence of viscoelasticity. The extra pressure drop owing to the presence of the suspended drops, the shape and velocity of the drops, and the streamlines of the flow are reported for various viscosity ratios, total flow rates and drop sizes.

Operating Experience with the Hydrogen Isotope Separation System at Mound

1988 ◽  
Vol 14 (2P2A) ◽  
pp. 431-437 ◽  
Author(s):  
Michael C. Embury ◽  
Michael G. Erwin ◽  
Douglas A. Levan
Keyword(s):  
Hydrogen Isotope ◽  
Isotope Separation ◽  
Operating Experience ◽  
Separation System

Development of a Silicon-Based Passive Gas-Liquid Separation System for Microscale Direct Methanol Fuel Cells

2006 ◽  
Author(s):  
C. C. Hsieh ◽  
Yousef Alyousef ◽  
S. C. Yao
Keyword(s):  
Direct Methanol Fuel Cells ◽  
Glass Plate ◽  
Maximum Pressure ◽  
Separation System ◽  
Liquid Separation ◽  
Flow Rates ◽  
Separation Chamber ◽  
Direct Methanol ◽  
And Performance ◽  
Silicon Based

The design, fabrication, and performance characterization of a passive gas-liquid separation system is presented in this paper. The gas-liquid separation system is silicon-based and its fabrication is compatible with the existing CMU design of the microscale direct methanol fuel cell (DMFC). Both gas and liquid separators consist of staggered arrays of etched-through holes fabricated by deep reactive ion etching (DRIE). The gas separator is coated with a thin layer of hydrophobic polymer to substantiate the gas-liquid separation. To visually characterize the system performance, the gas-liquid separation system is made on a single wafer with a glass plate bonded on the top to form a separation chamber with a narrow gap in between. Benzocyclobutene (BCB) is applied for the low-temperature bonding. The maximum pressure for the liquid leakage of the gas separators is experimentally determined and compared with the values predicted theoretically. Several successful gas-liquid separations are observed at liquid pressures between 14.2 and 22.7 cmH2O, liquid flow rates between 0.705 and 1.786 cc/min, and CO2 flow rates between 0.15160 to 0.20435 cc/min.

High Pressure Liquid Chromatographic Determination of Aflatoxins by Using Radial Compression Separation

1982 ◽  
Vol 65 (3) ◽  
pp. 665-671
Author(s):  
Eric C Shepherd ◽  
Timothy D Phillips ◽  
Norman D Heidelbaugh ◽  
A Wallace Hayes
Keyword(s):  
High Pressure ◽  
Retention Time ◽  
Rapid Determination ◽  
Chromatographic Determination ◽  
Peak Height ◽  
Radial Compression ◽  
Good Resolution ◽  
Separation System ◽  
Flow Rates

Abstract A rapid method for the determination of aflatoxins was developed using high pressure liquid chromatography and a radial compression separation system. A standard solution of aflatoxins B1, B1, G1, G2, and M1 was analyzed at flow rates of 2.0 and 6.0 mL/min. Retention times, peak heights, and peak areas were reproducible over a 3-day period. Coefficients of variation for aflatoxin B1 at 2.0 and 6.0 mL/min were, respectively, 1.04 and 0.87% (retention time); 2.9 and 4.7% (peak height); and 8.2 and 4.7% (peak area). At 6.0 mL/min there was an approximate 25% loss in sensitivity but a greater than 50% reduction in retention time. Separation of all the aflatoxins was excellent using a dual flow rate of 2.0 mL/min with a change to 8.0 mL/min at 15 min post-injection. The applicability of the radial compression separation system for the rapid determination of aflatoxins in human tissues was also tested. Spiked samples of liver, serum, and urine showed good resolution of all aflatoxin peaks at the higher flow rates.

Effect of CS2 Flow Rate on the Formation of Aligned Carbon Microcoils

2019 ◽  
Vol 947 ◽  
pp. 40-46
Author(s):  
Hyun Ji Kim ◽  
Sung Hoon Kim
Keyword(s):  
Flow Rate ◽  
Vapor Deposition ◽  
Rate Ratio ◽  
Chemical Vapor ◽  
Regular Structure ◽  
Flow Rate Ratio ◽  
Total Flow ◽  
Total Flow Rate ◽  
Flow Rates ◽  
Thermal Chemical Vapor Deposition

The formation of aligned carbon microcoils could be achieved using C2H2 as a source gas and CS2 as an incorporated additive gas under thermal chemical vapor deposition system. To elucidate the ratio of C2H2/CS2 for the formation of the aligned carbon microcoils, the CS2 flow rate was first manipulated under the identical C2H2 flow rate (500sccm) condition. The formation and the alignment of carbon microcoils could be only achieved under the ratio of C2H2/CS2 = 33.3 condition, namely the flow rates of CS2 = 15sccm and C2H2= 500sccm. The total flow rate of the used gases was varied under the identical C2H2/CS2 flow rate ratio (33.3) condition. The C2H2 flow rate was manipulated under the identical CS2 flow rate (15sccm) condition. It was found that the formation and the alignment of carbon microcoils could be only achieved under the condition of 15sccm of CS2 flow rate in the range of 200 ~ 500sccm of C2H2 flow rate, regardless of the flow rate ratio of C2H2/CS2 and the total flow rate. The crystal structure of the well-aligned CMCs reveals the increase in the (002) peak in XRD spectrum for the aligned carbon microcoils, indicating the existence of the more regular structure in the aligned carbon microcoils. Based on these results, the cause for the formation of the aligned carbon microcoils only in the case of the CS2 flow rate = 15sccm with the imaginary pictures for the flow rate ratio of C2H2/CS2 just above the substrate were proposed.

Optimal Design of an Isotope Separation System

1996 ◽  
Vol 30 (3P1) ◽  
pp. 337-348
Author(s):  
Laurence Boisset ◽  
Christian Latgé ◽  
Luc Pibouleau ◽  
Phillippe Guittard ◽  
Serge Domenech
Keyword(s):  
Optimal Design ◽  
Isotope Separation ◽  
Separation System

scholarly journals The Laboratory for Laser Energetics’ Hydrogen Isotope Separation System

2016 ◽  
Vol 109-111 ◽  
pp. 128-134 ◽  
Author(s):  
W.T. Shmayda ◽  
M.D. Wittman ◽  
R.F. Earley ◽  
J.L. Reid ◽  
N.P. Redden
Keyword(s):  
Hydrogen Isotope ◽  
Isotope Separation ◽  
Separation System
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