Experimental Dewars Developed by the National Bureau of Standards

Birmingham, B. W.; Brown, Edmund H.; Class, Christina; Schmidt, Achim

doi:10.1007/978-1-4684-3099-8_9

Cited by 3 publications

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“…Large transportable dewars for liquid hydrogen were developed during that time, some of which included a small cryocooler to reliquefy the boiloff. A nonrefrigerated 750 L dewar had a boiloff rate of 1% per day and was designed for air transport [54]. A third hydrogen liquefier was shipped to the Eniwetok Atoll in the Pacific Ocean for the liquefaction of deuterium for the first hydrogen bomb "wet" bomb program reduced the need for liquid hydrogen after about 1954, but research on its properties continued at NBS-Boulder.…”

Section: Cryogenic Applications Around 1950mentioning

confidence: 99%

Historical Summary of Cryogenic Activity Prior to 1950

Radebaugh

Cryogenic Engineering

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Cryogenics is the science and technology dealing with temperatures less than about 120 K, although this historical summary does not adhere to a strict 120 K definition. The techniques used to produce cryogenic temperatures differ in several ways from those dealing with conventional refrigeration. In practice, these two areas often overlap and the boundary between conventional and cryogenic refrigeration is often indistinct. Significant reductions in temperature often have very pronounced effects on the properties of materials and the behavior of systems.Many cryogenic applications have developed as the refrigeration techniques prior to 1950 have improved, although many applications still face stiff competition from ambient temperature phenomena because of the associated refrigeration problems. This review shows how the development of new applications over the past 50 years is closely tied to the advances in cryogenic refrigeration prior to 1950.

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Section: Cryogenic Applications Around 1950mentioning

confidence: 99%