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

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 the various prime business corporations at the moment energetic during this swiftly increasing box, the convention, moment of its sort, attracted greater than four hundred scientists and engineers from all components of the realm. 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 latest expert societies. In all yet circumstances the court cases comprise the precis or whole textual content of the paper provided on the confer­ ence. Forty-nine papers have been provided at seven separate classes. those periods have been divided into the next basic subject matters: Cryogenic strategies Cryogenic apparatus Cryogenic homes Cryogenic functions Bubble Chambers The department on occasion needed to be a little arbitrary considering that numerous papers might have been categorised below multiple common subject. To make the court cases extra necessary to the reader, an test used to be made to list the final dialogue which each one paper. regrettably, despite the fact that, the recording units weren't delicate adequate for transparent replica. The discussions, for this reason, haven't been incorporated within the continue­ ings.

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

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The composition of the liquid in equilibrium with the original vapor to be separated is shown for each component as 0 (origin), while F is the composition at the feed point of the ternary sections. The reference number of each section is shown in the vicinity of the composition curve for each component. Remarks 1) The pre sent example has been calculated under the assumption that the K values of ethylene, ethane and propylene are not a function of composition and that ideal conditions prevail. For systems at higher pressures, it is still possible to use the K value of a reference component as the main variable, but the calculations ~ould be more complex with K values depending also on the compositions of the liquid and vapor phases.

The sub-cooling of the liquid to be transferred from the liquefier is particularly attractive not only to transfer to the storage dewar without loss during production but because of the possibility it provides of transferring liquid over considerable distances, perhaps directly to experiments that must be located remotely from the plant for safety purposes. ) Conclusions The effectiveness of this new catalyst arrangement which has been successfully tested in the NBS liquefier- -although not exhaustively--should be attractive to designers of new hydrogen liquefier plants, especially large plants where economical production becomes an important factor.

In addition, further experiments were conducted on the three plate still, with sampling only between the plates. Figure 7 shows the results of this work. The data represented by this plot were taken over a period of about four months during which time the charge to the still was varied from 10 per cent to 60 per cent D2 in H 2 . There is good agreement among <1'ata, as can be seen from the curve, and it is felt that this curve represents rather well an overall plate efficiency free from end effects for the range of concentrations studied.

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