By A. Pastuhov (auth.), K. D. Timmerhaus (eds.)
The nationwide Bureau of criteria Boulder Laboratories at Boulder, Colorado once more served because the host for the 1972 Cryogenic Engineering convention. For the Cryogenic Engineering convention it used to be like coming horne, for it used to be on the NBS Boulder Laboratories that the Cryogenic Engineering convention was once first conceived and held m 1954m reference to the commitment ofthe NBS Boulder Laboratories via President Dwight D. Eisenhower. The Cryogenic Engineering convention IS thankful for the continued help that the nationwide Bureau of criteria has gIVen through the years, and which used to be increased on July 1, 1971 while the NBS Boulder Laboratories assumed the secretariat functionality of the convention from the nationwide Academy of Sciences. as a result of universal pursuits in warmth move, the 1972 Cryogemc Engineering convention labored with the thirteenth nationwide warmth move convention to strengthen a joint software m warmth move. A majority ofthe papers awarded during this cooperative attempt are incIuded m V olume 18 of the Advances zn Cryogenic Engineerzng during the kmd permission ofthe thirteenth nationwide warmth move convention and are acknowl edged accordingly.
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Additional info for Advances in Cryogenic Engineering: Proceedings of the 1972. Cryogenic Engineering Conference. National Bureau of Standards. Boulder, Colorado. August 9–11, 1972
Compression efficiencies were measured and surging characteristics were studled. As an additional element, vibration characteristics were tested and solutions developed whenever it was considered that safety factors were insufficient. 2. The seal oil system was tested in a full-size model operating at normal pressure and temperature and in an atmosphere of hydrocarbon mixtures identical to those existing in the actual machine. 3. Solution characteristics of hydrocarbons into the lube and seal oils were measured and alllube oil regeneration procedures were established from these tests.
Hartman, and E. V. Seymour Shell Pipe Line Corporation Houston, Texas INTRODUCTION Over the last fifteen years several mstances have been reported of violent interactions occurring during spills of liquefied natural gas (LNG) onto water. Most of these happened some time following initiatIOn of spilling, after ice had formed on the water. The phenomenon was usually attributed to explosive vaporization of LNG encapsulated in ice. In 1968 and 1969, the Bureau of Mines  conducted an experimental mvestigation of the spreading and vaporization of LNG spilled on water.
However, for mixtures, it is possible to enter the transition region from film boiling through sufficient enrichment of the liquefied gas. During vaporization in film boiling, the colder, more volatile components boil off, increasing the boiling point and decreasing the temperature difference between the remaining liquefied gas and the water. For mixtures with the proper initial composition, the enrichment process may proceed all the way into the transition region. The temperature T. Enger, D. E.