Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
7714415 | International Journal of Hydrogen Energy | 2015 | 7 Pages |
Abstract
A liquid hydrogen (LH2) storage tank, vacuum jacketed transfer line, and hydrogen liquefier have been designed, built, and coupled together to form a small scale hydrogen liquefaction plant. The liquefier was designed to liquefy at 1Â L/hr at 3Â bar with a single stage Gifford-McMahon cryocooler. The liquefier can hold up to 200Â L of LH2 in a multi-layer insulated (MLI) vacuum jacketed storage tank. The liquefier includes two ortho-para hydrogen (O-P) converters, a liquid nitrogen precooler and a heat pipe. After liquefaction, LH2 can be transferred to a 5Â L storage vessel using a flexible, MLI and vacuum insulated low loss transfer line. This storage vessel was designed to limit boil-off by using two 1Â m long G10-CR necks to reduce conduction, a radiation shield and MLI with high vacuum to reduce radiation and convective heat leak from the outer shell to the inner tank. Presented in this paper are more detailed system configurations and results of various operational modes and applications.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Electrochemistry
Authors
Nathaniel Maurice Garceau, Jong Hoon Baik, Chang Mu Lim, Seo Young Kim, In-Hwan Oh, Sarng Woo Karng,