Is this hydrogen fuel technology possible?

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Discussion Overview

The discussion revolves around the feasibility of hydrogen fuel technology, particularly its application in vehicles and power generation. Participants explore concepts related to hydrogen generation, storage, and the potential for using solar energy in conjunction with hydrogen fuel systems.

Discussion Character

  • Exploratory
  • Debate/contested
  • Technical explanation
  • Conceptual clarification

Main Points Raised

  • Some participants propose using solar panels to power hydrogen generators for vehicles, suggesting a system that recycles water and hydrogen.
  • Others argue that the efficiency of solar panels may not be sufficient to power a regular car directly, and that a power plant might be a more suitable application for hydrogen technology.
  • There are claims that burning hydrogen to generate energy could potentially power the hydrogen generator, though this raises questions about energy efficiency and thermodynamics.
  • Some participants express skepticism about the practicality of hydrogen as a primary fuel source, citing issues such as the lack of abundant pure hydrogen and the inefficiencies of producing hydrogen from non-renewable sources.
  • Concerns are raised regarding the infrastructure needed to transport hydrogen, including the challenges posed by hydrogen's diffusion through steel pipelines.
  • A few participants suggest that hydrogen serves as an energy carrier rather than a primary fuel, comparing it to electricity storage.
  • There are discussions about the potential for using hydrogen in various applications, such as heating homes, while acknowledging the limitations of current technology and energy production methods.

Areas of Agreement / Disagreement

Participants express a range of views on the feasibility and practicality of hydrogen fuel technology, with no clear consensus reached. Some agree on the challenges of hydrogen production and transport, while others remain optimistic about its potential applications.

Contextual Notes

Limitations include assumptions about energy efficiency, the dependence on renewable energy sources, and unresolved questions regarding the practicality of proposed systems. The discussion reflects a variety of perspectives on the technical and logistical challenges of hydrogen fuel technology.

  • #31
LA is going to melt anyways. LOL
 
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  • #32
Rather than solar, consider wind. It costs around $2 million for a wind turbine that generates 1 MW. There are many places in the world with a continuous supply of wind. Plunk a few million of those babies in those spots and you've got a pretty darn good way to tackle the energy problem. Not to mention, you can still farm the same land you put those wind towers on which is not something you can really do with a bunch of solar panels lying on the surface.
 
  • #33
How about using hydrogen instead of batteries, is that a good idea?
 
  • #34
W3pcq said:
How about using hydrogen instead of batteries, is that a good idea?
Thats the idea, it's main advantage is that it stores more energy per unit weight than batteries and it's quicker to refill a tank of H2 than charge a battery at a gas station.
On the downside the tank is large and heavy and the infrastructure to distribute it to gas stations is difficult and expensive.

But the infrastructure needed is very similair to existing oil company systems so it's a question of how quickly oil companies can get money out of government vs how quickly batteries can be improved!
 
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  • #35
The efficiency of fuel cell based storage is lower as well. I'm still hopeful that work on polymer-based batteries will provide some relief to the problems of weight and cost for batteries.
 
  • #36
mgb_phys said:
Thats the idea, it's main advantage is that it stores more energy per unit weight than batteries and it's quicker to refill a tank of H2 than charge a battery at a gas station.
On the downside the tank is large and heavy and the infrastructure to distribute it to gas stations is difficult and expensive.

But the infrastructure needed is very similair to existing oil company systems so it's a question of how quickly oil companies can get money out of government vs how quickly batteries can be improved!

I'm also researching ways to generate electricity from combining hydrogen and water. The systems I'm aware of that convert HHO to water is a HHO Combustion engine (without mixing with fossil fuels) or a fuel cell.
I'm under the impression that fuel cells are far to costly to scale up to supply the amount of power required by a home.
Hydrogen combustion generators I presume are similar to automobile engines in that they convert about 20% of the HHO into useful electricity opposed to heat. I do not know the figure. But I know a typical automobile is about 20% efficient in converting petroleum into kinetic energy.

The purpose of this post is simply asking wither or not fuel cells and combustion engines are the only available closed-loop (excluding the required electricity during electrolysis) systems for generating electricity. I haven't been able to find any alternatives.

Until fuel cells become more affordable and have a longer lifespan and until the hydrogen combusion engine gets more efficient (although I'm pretty sure it has been maximized), electricity storage via HHO will remain largely impractical for home-scale use. Unless there is an alternative! Are there any?

Regards,

-Taylaron
 
  • #37
I really don't see a reason to even consider hydrogen as a way to store power for your home. While it is easily re-used, as you can simply separate the hydrogen from the oxygen in the water that the reaction creates, that takes electricity.(Not to mention the fact that hydrogen leaks through just about any container) And if you're using electricity to separate the hydrogen, why not go one step further and just use the power from the power lines for electricity. It's more efficient and takes no extra equipment. The only reason I see hydrogen being used anywhere is replacing a battery, as its energy density is much greater than a standard battery. That is pretty much only useful in automobiles, where weight is a great factor in fuel efficiency and such.
 

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