Conveners
C2Or3B: Hydrogen III: Liquefaction and Testing
- Ian Richardson (Plug Power)
- Jason Hartwig (NASA Glenn Research Center)
Liquid hydrogen (LH2) production has predominantly been performed in the past by large gas separation facilities primarily to take advantage of economies of scale and available utilities and commodities such as liquid nitrogen for pre-cooling. With the expanding hydrogen economy, the increased need for LH2 production and storage will drive industry toward smaller liquefaction plants where...
With the energy transition ongoing, the demand for small quantities of liquid hydrogen available at any time for testing liquid hydrogen equipment and technologies is growing. Industrial liquefier technologies are focused on large quantities and downscaling is not efficient due to the turbines used which will decrease in performance when scaling down. Therefore, several initiatives have...
A mobile hydrogen liquefaction and storage unit has been developed to demonstrate the liquid hydrogen (LH2) value chain including hydrogen production, liquefaction, storage, transfer, and recovery. This unique LH2 technology demonstrator, or LS20 mobile system, is one of the primary systems for a multipurpose LH2 test platform that tests controlled storage and zero-loss transfer methodology....
Currently, there is a great need for testing capabilities for material samples and components in LH2. This includes low temperature compatibility at 20 K, H2 compatibility and possible degradation or permeation effects. The test environment required for this is challenging and quite costly due to LH2 supply. Therefore, an alternative test concept was developed that works autonomously. The...
With the growing interest in hydrogen as one pillar of the future energy economy, the relevance of hydrogen liquefaction for storage and transportation is increasing rapidly. However, the liquefaction process still offers much potential for improvement in terms of cost and efficiency. One obstacle on the way to more cost- and energy-efficient liquefiers is the uncertainty associated with the...
Cryogenic boil off from liquid hydrogen can harness the endothermic para- to orthohydrogen quantum state conversion for refrigeration. Ferrimagnetic catalysts such as Fe2O3 are utilized to accelerate the rate of parahydrogen conversion to maximize the rate of cooling. However, the extent of conversion and amount of cooling deliverable is limited by the size of the catalytic converter in the...
