The High Energy Density Advantage of Liquid Hydrogen

#LiquidHydrogen has a higher energy density than gaseous hydrogen, meaning more energy can be stored in a smaller volume. This is crucial for applications requiring compact and lightweight fuel storage, such as in the #aviation sector. For example, Turbotech Aero, Safran and Air Liquide have successfully ground tested the first liquid hydrogen-fueled gas turbine engine. Additionally, China's first ton-level liquid hydrogen unmanned eVTOL aircraft successfully completed its test flight in Baoji city.
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• It's important to consider the cryogenic properties of liquid hydrogen and the insulation requirements. I.e. to minimise boil-off, the evaporation of liquid hydrogen over time, requires the use of advanced insulation materials and technologies.

• Implement robust safety protocols is essential to handle potential leaks or spills, as liquid hydrogen is highly flammable.

• Liquifying hydrogen is energy-intensive due to the extremely low temperatures required. The use of renewable energy sources, efficient compression and cooling technologies, and process optimisation can help reduce consumption in this regard.

• Material compatibility and hydrogen embrittlement are crucial issues. Hydrogen can make metals brittle and prone to cracking. Using materials resistant to hydrogen embrittlement and regular inspections help prevent structural failures and maintain safety.

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