文档介绍：Florida Universities Hydrogen Review 2005
Florida Solar Energy Center y November 1-4, 2005
Long Term ZBO(Zero-boil-off) Liquid Hydrogen
Storage Tanks
Task 2. Hydrogen Storage Systems
Jong Baik
Hydrogen R&D Division, Florida Solar Energy Center
Start Date =January 2003
pletion = December 2006
Long Term ZBO LH2 Storage Tank – Jong Baik – FSEC
Florida Universities Hydrogen Review 2005
Florida Solar Energy Center y November 1-4, 2005
Research Goals and Objectives
• To develop a long-term ZBO (zero-boil-off) LH2 storage
bining densified liquid hydrogen and
passive/active cooling technologies.
– Development of a 150 L capacity densified liquid hydrogen test facility
which is capable of liquefying, densifying hydrogen through a GM
cryocooler and unique heat pipe design.
– Development of vapor cooled shield(VCS) with inline para-to-ortho
hydrogen converter to minimize boil-off loss from LH2 storage tank.
– Development of a Joule-Thompson expansion system to increase
densification rate in the densifier, and to expand boil-off gas in the VCS of
storage tank.
Long Term ZBO LH2 Storage Tank – Jong Baik – FSEC
Florida Universities Hydrogen Review 2005
Florida Solar Energy Center y November 1-4, 2005
Relevance to Current State-of-the-Art
• On-board hydrogen fuel storage for transportation : DOE, BMW, GM, Honda,
Linde etc.
Relevance to NASA
NASA GRC is interested in long term airborne hydrogen storage, transmission or distribution
systems applied to LEAP (low emission alternative power) and HALE ROA (High altitude long
endurance remotely operated aircrafts) Programs. LH2 is one of candidates where H2 is
consumed rather than regenerated in the aircraft applications.
LH2 tank systems are expected to provide airborne LH2 storage for up to 30 days duration by
more than 1,000 Lbs of LH2 (~450 kg, 1,700 gal) at altitudes as high as 70,000 ft.
Durable, light weight, high gravimetric energy density, hi