A liquid helium dewar
โ Scribed by Ya.S. Kan
- Publisher
- Elsevier Science
- Year
- 1971
- Tongue
- English
- Weight
- 86 KB
- Volume
- 11
- Category
- Article
- ISSN
- 0011-2275
No coin nor oath required. For personal study only.
๐ SIMILAR VOLUMES
To obtain basic data for the construction of large-scale storage vessels for liquid helium, heat leak into a test dewar containing 200 I of liquid helium was studied. The relative amounts of the heat leak components due to various origins were estimated and the effective emissivity between the inner
A model has been developed to pred=ct the flow of He II between a source and a rece)vmg dewar The model uses a fimte d=fference approx=mat=on to integrate the descnbmg equat=ons The transfer path may conta)n porous plugs or mechamcal pumps, heater sect)ons, heat leaks, constr=ct=ons due to valves, a
A D E W A R with 25 1. capacity and a daily evaporation loss of 2-8 per cent has been designed for the storage and transport of liquid helium. A multilayer vacuumshielded insulation is used in conjunction with a shield cooled by the evaporating helium.