A refrigerated transport Dewar is a refrigerated transport vessel with an insulated Dewar flask (vacuum) design to carry cryogenic liquid. To prevent pressure build-up they are equipped with safety relief valves and/or rupture discs. The liquid can be withdrawn as a gas by passing liquid through an internal vaporizer or as a liquid under its own vapour pressure.A non refrigerated air-transportable dewar for 750 liters of liquid hydrogen was developed by H.L. Johnston in ca. 1952. The heat flow to the liquid hydrogen shell was 4 watts, boill-off about 7.5 liters per day, or 1 % of the rated capacity. They were equipped with valves, instruments, and a vacuum pump.

Данное издание не является оригинальным. Книга печатается по технологии принт-он-деманд после получения заказа.