Making a Hydrogen Fuel Cell: Is it Possible?

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Discussion Overview

The discussion revolves around the feasibility of creating a hydrogen fuel cell that produces water and generates significant heat. Participants explore the principles of fuel cells, combustion, and alternative applications of hydrogen as a fuel source.

Discussion Character

  • Exploratory
  • Technical explanation
  • Debate/contested

Main Points Raised

  • One participant inquires about constructing a fuel cell that utilizes hydrogen and oxygen to produce water and heat, questioning its possibility.
  • Another participant clarifies that fuel cells are designed to generate electricity with minimal heat production, suggesting solid oxide fuel cells as a high-temperature option for cogeneration.
  • A different viewpoint equates the desired reaction to combustion, likening it to a hydrogen-fueled bunsen burner that produces water and heat through ignition.
  • There is a question about the fuel source of bunsen burners, with some participants noting that they typically use methane or natural gas rather than hydrogen.
  • One participant proposes the idea of a "rechargeable" cigarette lighter that could use water and be plugged into a power outlet, suggesting a novel application of hydrogen fuel.
  • Another participant mentions molten carbonate fuel cells as a potential alternative and discusses the application of solid oxide fuel cells in trains, emphasizing their efficiency and heat utilization for passenger comfort.
  • Concerns are raised about the visibility of a hydrogen flame and the risks associated with hydrogen storage, suggesting that bunsen burners are primarily fueled by natural gas in laboratory settings.

Areas of Agreement / Disagreement

Participants express differing views on the nature of hydrogen fuel cells versus combustion processes, with no consensus reached on the best approach to utilizing hydrogen for heat generation.

Contextual Notes

Participants highlight various assumptions regarding the types of fuel used in bunsen burners and the efficiency of different fuel cell technologies, indicating a lack of clarity on specific applications and limitations of hydrogen as a fuel source.

banerjeerupak
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how do i make a fuel cell which utilises hydrogen and oxygen to make water and in the meantime give out loads of heat. is it possible?:
 
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The entire purpose of fuel cells is to make electricity with minimal heat production to prevent energy wastage.
That said, you can look into solid oxide fuel cells. They operate at temperatures from 800-1000K and thus can be used in cogeneration plants for high efficiency.
 
Think about it. The reaction you are referring to, that of oxygen and hydrogen making water and heat is combustion.

Exactly what a hydrogen-fueled bunsen burner does. Water and heat.

So you don't want a fuel cell. Just mix your gases and ignite. Just don't blow things up or burn down your house.
 
doesn't the bunsen burner utilise methane in producing the heat.
or is it the good old hydrogen that has to be burnt
 
The bunsen can pretty much use any gaseous fuel, I suppose.

Put in an atomizer and you might be able to use liquid fuel too. Although most liquid-fueled burners use a wick, I suppose.

Why not make a "rechargable" cigarette lighter where you add water and plug it into the power outlet?
 
sid_galt said:
That said, you can look into solid oxide fuel cells. They operate at temperatures from 800-1000K and thus can be used in cogeneration plants for high efficiency.

Also Molten Carbonate can do the work, can it?

I think that SOFC could do a great work in trains for non yet electrified railways: even the heat can be used for the passenger cabins. And a train has a fixed schedule, so no problem about start-up time because in can be forecasted in advance.
 
banerjeerupak said:
doesn't the bunsen burner utilise methane in producing the heat.
or is it the good old hydrogen that has to be burnt
Not in any lab I have ever been in. If the flame were burning H2 you'd never see it. Hydrogen storage is also expensive and risky. I'm sure the only thing you have seen a bunsen burner using is natural gas.
 

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