Emission-free mobility will increasingly rely on liquid hydrogen. That's why I don't see any need for pressurized containers.
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@Pezi then unfortunately you have no idea about the subject. Liquid hydrogen requires a lot of energy for cooling.
There are several reasons why it is nonsensical to believe that hydrogen will primarily be liquid in the future and will manage without pressure vessels:
## Challenges of liquid hydrogen storage
1 **Extremely low temperatures**: Liquid hydrogen requires a temperature of -253°C, which is an enormous technical challenge[2][5]. Maintaining this temperature is energy intensive and costly.
2 **High energy consumption**: Liquefying hydrogen consumes up to 30% of its energy content, which significantly reduces overall efficiency[5].
3 **Vaporization losses**: Despite the best insulation, liquid hydrogen heats up slowly and evaporates (boil-off), resulting in losses[6].
4 **Complex infrastructure**: Special, well-insulated cryogenic tanks and a complex infrastructure are required to handle liquid hydrogen[5].
## Advantages of compressed gas storage
1 **Practicality**: Compressed hydrogen gas storage is technically easier to implement and requires less specialized equipment[4].
2 **Faster refueling**: Compressed gas systems enable faster refueling of vehicles, which is important for everyday use[5].
3 **Lower space requirement**: Compressed gas storage systems require less space than cryogenic systems, which is particularly beneficial for mobile applications[5].
4 **Higher flexibility**: Compressed gas storage systems can be more easily adapted to different applications and scales[4].
## Technological developments
Research is focusing on improving pressure vessels, particularly lightweight composite materials such as carbon fiber that can withstand high pressures[2][4]. These developments are making pressurized gas storage increasingly efficient and safe.
## Conclusion
Although liquid hydrogen storage may have advantages for certain applications, such as the transportation of very large quantities over long distances, it is unlikely to replace compressed gas storage in most applications. The technical challenges, high energy demands and infrastructure requirements of liquid hydrogen storage make compressed gas storage the more viable and efficient solution for many applications, particularly in the mobility sector and decentralized energy systems[2][4][5].
Sources
[1] image.jpg https://pplx-res.cloudinary.com/image/upload/v1727693667/user_uploads/fmgfumzgv/image.jpg
[2] Storing hydrogen: Pressure vessels, tanks and caverns https://www.tuev-hessen.de/1690/wasserstoff-speichern-druckbehaelter-tanks-und-kavernen/
[3] Challenges in the transportation and storage of hydrogen https://blackout-news.de/aktuelles/herausforderungen-bei-transport-und-speicherung-von-wasserstoff-welche-loesungen-gibt-es/
[4] Storing hydrogen: Innovative technologies and their opportunities https://info.atlascopco-kompressoren.de/blog/wasserstoff-speichern-innovative-technologien-und-ihre-chancen
[5] Why gas stored under high pressure is better ... - NPROXX https://www.nproxx.com/de/warum-unter-hohem-druck-gespeichertes-gas-besser-ist-als-fluessigwasserstoff/
[6] Hydrogen pressure vessels and other storage systems. - TUV Rheinland https://www.tuv.com/landingpage/de/hydrogen-technology/main-navigation/speicherung/
There are several reasons why it is nonsensical to believe that hydrogen will primarily be liquid in the future and will manage without pressure vessels:
## Challenges of liquid hydrogen storage
1 **Extremely low temperatures**: Liquid hydrogen requires a temperature of -253°C, which is an enormous technical challenge[2][5]. Maintaining this temperature is energy intensive and costly.
2 **High energy consumption**: Liquefying hydrogen consumes up to 30% of its energy content, which significantly reduces overall efficiency[5].
3 **Vaporization losses**: Despite the best insulation, liquid hydrogen heats up slowly and evaporates (boil-off), resulting in losses[6].
4 **Complex infrastructure**: Special, well-insulated cryogenic tanks and a complex infrastructure are required to handle liquid hydrogen[5].
## Advantages of compressed gas storage
1 **Practicality**: Compressed hydrogen gas storage is technically easier to implement and requires less specialized equipment[4].
2 **Faster refueling**: Compressed gas systems enable faster refueling of vehicles, which is important for everyday use[5].
3 **Lower space requirement**: Compressed gas storage systems require less space than cryogenic systems, which is particularly beneficial for mobile applications[5].
4 **Higher flexibility**: Compressed gas storage systems can be more easily adapted to different applications and scales[4].
## Technological developments
Research is focusing on improving pressure vessels, particularly lightweight composite materials such as carbon fiber that can withstand high pressures[2][4]. These developments are making pressurized gas storage increasingly efficient and safe.
## Conclusion
Although liquid hydrogen storage may have advantages for certain applications, such as the transportation of very large quantities over long distances, it is unlikely to replace compressed gas storage in most applications. The technical challenges, high energy demands and infrastructure requirements of liquid hydrogen storage make compressed gas storage the more viable and efficient solution for many applications, particularly in the mobility sector and decentralized energy systems[2][4][5].
Sources
[1] image.jpg https://pplx-res.cloudinary.com/image/upload/v1727693667/user_uploads/fmgfumzgv/image.jpg
[2] Storing hydrogen: Pressure vessels, tanks and caverns https://www.tuev-hessen.de/1690/wasserstoff-speichern-druckbehaelter-tanks-und-kavernen/
[3] Challenges in the transportation and storage of hydrogen https://blackout-news.de/aktuelles/herausforderungen-bei-transport-und-speicherung-von-wasserstoff-welche-loesungen-gibt-es/
[4] Storing hydrogen: Innovative technologies and their opportunities https://info.atlascopco-kompressoren.de/blog/wasserstoff-speichern-innovative-technologien-und-ihre-chancen
[5] Why gas stored under high pressure is better ... - NPROXX https://www.nproxx.com/de/warum-unter-hohem-druck-gespeichertes-gas-besser-ist-als-fluessigwasserstoff/
[6] Hydrogen pressure vessels and other storage systems. - TUV Rheinland https://www.tuv.com/landingpage/de/hydrogen-technology/main-navigation/speicherung/
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•@Pezi I'd be happy to tell your boss. I suspect you're looking at a different sector... regardless, Hexagon Purus also has liquid hydrogen (cryoshelter) and battery storage applications.
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•@Khlmysee as written above. Liquid hydrogen will be used for mobile systems, especially in heavy goods transport...
This is largely due to the refueling process. With a pressurized tank vehicle, the fuel pump can no longer be used for 20-30 minutes after refueling. The refueling time is the biggest advantage over battery electric drives. That is why liquid hydrogen will be used.
https://www.daimlertruck.com/newsroom/pressemitteilung/sicher-schnell-und-einfach-daimler-truck-und-linde-setzen-mit-slh2-technologie-neuen-standard-fuer-fluessigwasserstoff-betankung-52581266
This is largely due to the refueling process. With a pressurized tank vehicle, the fuel pump can no longer be used for 20-30 minutes after refueling. The refueling time is the biggest advantage over battery electric drives. That is why liquid hydrogen will be used.
https://www.daimlertruck.com/newsroom/pressemitteilung/sicher-schnell-und-einfach-daimler-truck-und-linde-setzen-mit-slh2-technologie-neuen-standard-fuer-fluessigwasserstoff-betankung-52581266
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•@Pezi This is only worthwhile for long-distance transportation and not for short distances. There are enough scenarios/applications where it won't work without pressurized containers. I think you're thinking too single-track. The technology itself sounds promising. I readily admit that. 😊
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@Pezi You are only looking at the mobility sector and even here only at a sub-sector (there is a huge demand in local transport) and there are many more sectors.
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@Khlmysee Yes and no. On the one hand, only the mobility sector will achieve the desired unit numbers and the associated profits, and on the other hand, I don't think there will be two different refueling options. This means that local transport would also have to be able to fill up with liquid fuel (although I expect battery electric vehicles to be used in local transport anyway).
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@Pezi I see it differently. There were enough reasons. Each of the technologies listed will have its raison d'être.
Hexagon Purus doesn't just make hydrogen pressure vessels. But you would have to get to know the company a little better for that 😉
Hexagon Purus doesn't just make hydrogen pressure vessels. But you would have to get to know the company a little better for that 😉
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