Cryogenic Hydrogen Technology

ABOUT THE COURSE:By and large, the implementation of a hydrogen fuel-based economy can not be done without the help of cryogenics. The footprints of cryogenics are seen in the large-scale production of this fuel, bulk transportation of it from one point to another, and some of the applications based on liquid hydrogen. One must be aware of the unique temperature-dependent properties of hydrogen for its design and simulation at the system and component levels. This course provides a consolidated overview of cryogenic hydrogen production, storage, transportation, and its end use. The safety aspects of handling cryo-hydrogen and the necessary precautions will also be discussed.PREREQUISITES: Basic thermodynamicsINDUSTRY SUPPORT: ISRO/ Hydrogen Startup companies

Week 1: An overview of hydrogen technology: Energy Vector; HydrogenTechnology: Applications, Advantages and ChallengesProperties gaseous, liquid and slush hydrogen, Isotopes of hydrogenand their uses; Othro-hydrogen and para-hydrogen;
Week 2:Production of Synthesis gas (Steam Reforming, Partial Oxidation, Auto-thermal Reactor); Processing of Synthesis gas (Linde-Bronn Process and l’Air Liquide System)
Week 3:Thermodynamics of electrolytic hydrogen prodution H2 Production: electrolysis, tank & filter Press type electrolyser; PEM electrolysers; H2 Production: Thermo-chemical process
Week 4:Different means of storing hydrogen – oerview; cryo-compressed gaseous hydrogen storage; metal hydride storage of hydrogen; Cryosorption storage of hydrogen in carbonaceous materials;
Week 5:Overview of cryogenic liquefaction cycles; maximum inversion temperature; overview of cryogenic liquefaction cycles; Problems
Week 6:Liquefaction of hydrogen, Problems; ortho-para conversion of hydrogen; large scale hydrogen production process.
Week 7:Storage and transfer of liquid hydrogen, Temperature, level and flow rate measurements Super-insulated vessels;
Week 8:Gasification of hydrogen, Hydrogen as fuel (in fuel cell); Hydrogen as fuel (for space application); Safety issues on hydrogen;