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An interesting claim, certainly. Can you direct me to a source where I can read more about this? Or do you know the names of people or institutions working in this field that I can search for on the i

Thinking further about this, even if there is no heat release from the explosion and you just have a phase transformation from solid to gas, the work done by the engine comes from expansion of the gas

Sure they do. But that doesn't prove they want to capture KSA's oil reserves, which is what you claim. For a start, KSA's oil reserves are not located in Yemen or Bahrain. Durrh!   There is a fight fo

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I always thought it best to try to test a hypothesis rather than prove it.  Attempts at proof or disproof  may leave one more open to confirmation bias.

Well, there are already proved hydrogen vehicles, produced by Toyota, Honda and Hyundai:

https://en.wikipedia.org/wiki/Hydrogen_vehicle

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Well, there are already proved hydrogen vehicles, produced by Toyota, Honda and Hyundai:

https://en.wikipedia.org/wiki/Hydrogen_vehicle

These have nothing at all to do with "explosion engines".  

 

They use either slightly modified internal combustion engines or, far better, fuel cells.

 

Fuel cells have the advantage that they are not limited to Carnot Cycle efficiency constraints, as they are not heat engines. In theory I understand you can get 80% efficiency from a fuel cell conversion, though in practice 40-60% is the most that seems to be achievable. 

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These have nothing at all to do with "explosion engines".  

 

They use either slightly modified internal combustion engines or, far better, fuel cells.

 

Fuel cells have the advantage that they are not limited to Carnot Cycle efficiency constraints, as they are not heat engines. In theory I understand you can get 80% efficiency from a fuel cell conversion, though in practice 40-60% is the most that seems to be achievable. 

Correct, My intention is to explain, that Carnot Cycle doesn't play outside classic heat engines.

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Correct, My intention is to explain, that Carnot Cycle doesn't play outside classic heat engines.

Well we know it applies only to heat engines, nobody would question that.

 

What is your point, though? Is it that your proposed detonation engine is not a heat engine? Could be I suppose, but how would you argue that?  

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Well, there are already proved hydrogen vehicles, produced by Toyota, Honda and Hyundai:

https://en.wikipedia.org/wiki/Hydrogen_vehicle

Yes, but I believe those are fuel cell systems and not combustion or "detonation" engines, and who is buying them, or can afford them?  My old VW diesel is in the shop for repairs to the body, and I started researching possible replacement options, and I am coming to the conclusion that my best option is to keep patching my old diesel.

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