Temperature control device for liquid hydrogen storage tank, and liquid hydrogen storage system using same
OwnerHwa Long YOU, Tae Hoon KIM +3inventors
InventorsHwa Long YOU, Tae Hoon KIM, Kyu Hyung DO, Byung Il CHOI, Ae Jung YOON
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Abstract
Provided is a liquid hydrogen storage system including: a hydrogen storage tank coupled to a vessel hull and configured to store liquid hydrogen; a catalyst for conversion of para hydrogen in the liquid hydrogen into ortho hydrogen; and a catalyst holder disposed at an upper portion of the hydrogen storage tank and configured to hold the catalyst. A catalytic reaction to convert the para hydrogen into the ortho hydrogen occurs as the temperature of the upper portion of the hydrogen storage tank increases.
Claims21
1-11. (canceled)
A temperature control device for a liquid hydrogen storage tank, which is provided at an inner upper portion of a hydrogen storage tank in which liquid hydrogen is stored, the temperature control device comprising:
- a catalyst for conversion of para hydrogen into ortho hydrogen in the liquid hydrogen;
- and
- a catalyst holder disposed at an upper portion of the hydrogen storage tank and configured to hold the catalyst,
- wherein a catalytic reaction to convert the para hydrogen into the ortho hydrogen according to a change in an internal temperature of the hydrogen storage tank is induced.
A liquid hydrogen storage system comprising:
- a temperature sensor configured to measure an internal temperature of a hydrogen storage tank;
- a temperature control device comprising a catalyst for conversion of para hydrogen into ortho hydrogen in the liquid hydrogen and a catalyst holder configured to hold the catalyst;
- a fraction analyzer configured to measure a para-ortho hydrogen fraction in the hydrogen storage tank;
- and
- a controller configured to receive the internal temperature and the ortho-para fraction information of the hydrogen storage tank from the temperature sensor and the fraction analyzer and control the operation of the catalyst holder to adjust a contact area between the hydrogen and the catalyst.
Dependencies are inferred from the claim text.