Development of a small-scale hydrogen liquefaction system
- Development of a small-scale hydrogen liquefaction system
- 나다니엘 가르소; 백종훈; 임창무; 김서영; 오인환; 강상우
- Hydrogen liquefier; Vacuum transfer line; Hydrogen storage; Ortho-para hydrogen converter; Nitrogen precooler
- Issue Date
- International journal of hydrogen energy
- VOL 40, NO 35, 11872-11878
- A liquid hydrogen (LH2) storage tank, vacuumjacketed 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 1 L/hr at 3 bar with a single stage Gifford-McMahon cryocooler. The liquefier can hold up to 200 L of LH2 in a multi-layer insulated (MLI) vacuum jacketed storage tank. The liquefier includes two ortho-para hydrogen (OeP) converters, a liquid nitrogen precooler and a heat pipe. After liquefaction, LH2 can be transferred to a 5 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 1 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.
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