翻訳と辞書 |
Refrigerated transport Dewar : ウィキペディア英語版 | Refrigerated transport Dewar 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 The liquid can be withdrawn as a gas by passing liquid through an internal vaporizer or as a liquid under its own vapour pressure.〔(Handling, Transport and Storage of Cryogens )〕 ==History== A non refrigerated air-transportable dewar for 750 liters of liquid hydrogen was developed by H.L. Johnston in ca. 1952.〔(LIQUID HYDROGEN AS A PROPULSION FUEL,1945-1959 )〕 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. The refrigerated transport dewar was based on a design by the Arthur D. Little Company and produced by the Cambridge Corporation using a closed cycle helium refrigerator, the 2000 liters of liquid hydrogen could be stored or transported indefinitely with no loss as long as the refrigerator was operated. It was placed on a 10.7-meter semi-trailer and weighed 18.1 metric tons, including a diesel generator for refrigerator operation away from electric power lines.
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Refrigerated transport Dewar」の詳細全文を読む
スポンサード リンク
翻訳と辞書 : 翻訳のためのインターネットリソース |
Copyright(C) kotoba.ne.jp 1997-2016. All Rights Reserved.
|
|