Download PDF by W. E. Gifford (auth.), K. D. Timmerhaus (eds.): Advances in Cryogenic Engineering: Proceedings of the 1956

By W. E. Gifford (auth.), K. D. Timmerhaus (eds.)

ISBN-10: 1468431021

ISBN-13: 9781468431025

ISBN-10: 1468431048

ISBN-13: 9781468431049

The nationwide Bureau of criteria Boulder Laboratories was once on September 5-7, 1956 back host to a countrywide convention on cryogenic engineering. Supported financially via a few of the major commercial corporations at present lively during this swiftly increasing box, the convention, moment of its style, attracted greater than four hundred scientists and engineers from all components of the area. This attendance used to be proof of the current curiosity and progress in cryogenic engineering, a box which has as but now not came across a passable position in the bounds of present specialist societies. In all yet situations the lawsuits include the precis or complete textual content of the paper awarded on the confer­ ence. Forty-nine papers have been provided at seven separate classes. those classes have been divided into the subsequent basic themes: Cryogenic approaches Cryogenic apparatus Cryogenic houses Cryogenic functions Bubble Chambers The department in certain cases needed to be a bit of arbitrary on account that numerous papers might have been categorized lower than multiple common subject. To make the court cases extra helpful to the reader, an try was once made to checklist the final dialogue which each one paper. regrettably, despite the fact that, the recording units weren't delicate adequate for transparent copy. The discussions, as a result, haven't been integrated within the continue­ ings.

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Additional info for Advances in Cryogenic Engineering: Proceedings of the 1956 Cryogenic Engineering Conference National Bureau of Standards Boulder, Colorado September 5–7 1956

Sample text

See preceeding paper, A-3) On the basis of these data, 1500 cc of catalyst arranged in a bed with a depth about equal to the diameter was recommended and used. Coarse and fine mesh screen and a pad of fine glass wool was used on the top and bottom of the catalyst chamber to prevent catalyst dust losses. The heat exchangers were sized and selected by Mr. oT's and fin spacings. On the basis of these data, two 9-foot lengths of 3 channel commercial heat-exchanger tubing of concentric design were used.

TEMPERATURE, oK Figure 4. -17- • 1100 C a total of 31 times over a period of 6 weeks. The total time in use for conversion was 137 hours and the total time of activation was 820 hours. The activity remained essentially constant throughout, being actually a little higher at the end than at the beginning of the test. -18- A-4 A NEW ARRANGEMENT FOR THE ORTHO-PARA CONVERSION OF LIQUID HYDROGEN IN THE LARGE CEL-NBS LIQUEFIER V. J. Johnson CEL Natio nal Bureau of Standards Boulder, Colorado Introduction The tremendous increase in efficiency of the iron hydroxide catalyst described in the preceding paper (A-3) made it extremely attractive for use in the large CEL-NBS hydrogen liquefiers.

And Preuure Tap. Figure 1. Block Diagram Heavy Water Production Heat" Figure 2. l... KEy ". I It ... [ ..... , o 2 ... 1-[ - .. '0' '" 40 6(1 u,.. OX. TV. ' Figure 4. Over-all Plate Efficiency, Weir Variable Figure 3. Over-all Plate Efficiency, Plate Variable -40- expect that the information obtained from the H2 - D2 system is applicable to H2 - HD mixtures since the two systems are so similar. The relative volatility of H2 to D2 is readily obtained from vapor pressure data. R. B. Newman 3 at the University of Bristol, Great Britain, has determined the activity coefficient for the H2 - D2 system, which makes it possible to construct a true vapor-liquid equilibrium curve.

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Advances in Cryogenic Engineering: Proceedings of the 1956 Cryogenic Engineering Conference National Bureau of Standards Boulder, Colorado September 5–7 1956 by W. E. Gifford (auth.), K. D. Timmerhaus (eds.)


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