Toyota Motor Corporation unveiled cutting-edge hydrogen technologies at the Super Taikyu Series 2024 Round 7 Final Fuji, including the #32 ORC ROOKIE GR Corolla H2 Concept, a liquid hydrogen-powered race car, and a concept model demonstrating the potential reuse of boil-off gas (BOG) generated during driving.
Advancing Liquid Hydrogen Technology
Liquid hydrogen offers higher energy density compared to gaseous hydrogen, allowing for increased storage within the same tank capacity. However, it presents challenges with boil-off gas, a byproduct of natural heat transfer that causes the stored liquid hydrogen to evaporate. Traditionally, this vaporized hydrogen has been released into the atmosphere without being utilized.
At the Fuji event, Toyota introduced an innovative self-pressurizer designed to convert boil-off gas into reusable fuel. By leveraging the pressure of the vaporized hydrogen, the device increases its usability without relying on external energy sources.
Enhancing Energy Efficiency with Boil-Off Gas
Toyota also showcased a concept that integrates multiple steps to maximize the energy potential of boil-off gas:
- Fuel Reuse: The self-pressurizer amplifies the pressure of the vaporized hydrogen, converting it into usable fuel for the GR Corolla’s engine.
- Electricity Generation: Surplus boil-off gas is directed into a small fuel cell stack, which converts the hydrogen into electricity. This energy can power auxiliary systems, such as the liquid hydrogen pump.
- Safe Release: Any remaining boil-off gas is safely treated through a catalyst, transforming it into water vapor before release, ensuring environmental safety.
Call for Collaboration
Toyota emphasized its intent to collaborate with partners to refine and commercialize these technologies, which promise significant improvements in the energy efficiency of liquid hydrogen systems.
Commitment to Carbon Neutrality
By demonstrating these innovations on the racetrack, Toyota aims to accelerate its progress toward carbon-neutral mobility while maintaining its legacy of excellence in motorsports.
The GR Corolla H2 Concept and associated technologies underscore Toyota’s determination to overcome the challenges of hydrogen-powered vehicles, paving the way for a sustainable future in both racing and everyday driving.
