Ceramics in Turbine Development

If this would be true, we would all drive around with Kronogard turbines. Still, the only land vehicels which are partially using turbines are tanks. Not even in locomotives or ships are using gas turbines anymore, despite there have been (locomotives and commercial ships) some in production. It was a deadend back than an will be so in the future.

Intrestingly, there have been some japanese turbines for turbochargers of sport cars in the 80th, so there cost weren't unbearable. This turbines were lighter but less efficient than conventional metal turbines. The ceramics needed thicker wall thicknesses, which reduced their efficiency.
 
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Nicknick said:
If this would be true, we would all drive around with Kronogard turbines. Still, the only land vehicels which are partially using turbines are tanks. Not even in locomotives or ships are using gas turbines anymore, despite there have been (locomotives and commercial ships) some in production. It was a deadend back than an will be so in the future.

Intrestingly, there have been some japanese turbines for turbochargers of sport cars in the 80th, so there cost weren't unbearable. This turbines were lighter but less efficient than conventional metal turbines. The ceramics needed thicker wall thicknesses, which reduced their efficiency.
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Turbochargers have to withstand far less heat than full on power turbines. Still though, the prevalence of turbochargers on cars proves that the turbine power idea had merit.
 
That's not true, turbochargers of high power gazoline cars can withstand 1040 deg. Celsius, that's quite a lot with uncooled turbines.

Note, ceramic turbines were used by Japanese companies in the 80th.
 
Nicknick said:
That's not true, turbochargers of high power gazoline cars can withstand 1040 deg. Celsius, that's quite a lot with uncooled turbines.

Note, ceramic turbines were used by Japanese companies in the 80th.
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Most modern turbochargers use inconel. And the amount you'd need for a turbine engine makes it prohibitive.
 
exclaimedleech8 said:
Most modern turbochargers use inconel. And the amount you'd need for a turbine engine makes it prohibitive.
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With the widespread introduction of cylinder head integrated, water cooled exhaust manifolds, the temperature of gazoline turbos became much less critical, in sone cases, even the turbine housings are made out of aluminium (water cooled). I believe, the 1040 degree C turbines are using a TiAl alloy and not Inconel.
 
Nicknick said:
With the widespread introduction of cylinder head integrated, water cooled exhaust manifolds, the temperature of gazoline turbos became much less critical, in sone cases, even the turbine housings are made out of aluminium (water cooled). I believe, the 1040 degree C turbines are using a TiAl alloy and not Inconel.
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Ah yes titanium, so famous for being cheap.
 
This is a txpical solution for high performance cars, that bit of titanium doesn't really hurt.

A custom made titanium rod is available in China for less than 100 €!
 
Nicknick said:
This is a txpical solution for high performance cars, that bit of titanium doesn't really hurt.

A custom made titanium rod is available in China for less than 100 €!
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Guaranteed to cause several thousand dollars worth of damage
 
exclaimedleech8 said:
But it can only survive a maximum of 1600 degrees Fahrenheit (900 celsius)
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The TiAl is called semiceramic whatever it means. It can withstand exhaust gas temperatutes up to 1040 deg Celsius.

You might argue about the quality of a chinese titanium conrod, but the quality of the titanium molecules is the same like everywhere in the universe, so titanium isn't super expensive .
 
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The inherent simplicity of the turbine is something to behold. With just a few add-ons, it can serve as its own transmission and with constant combustion, carbon monoxide and unburnt hydrocarbons are negligible, without a catalytic converter.
 
exclaimedleech8 said:
The inherent simplicity of the turbine is something to behold. With just a few add-ons, it can serve as its own transmission and with constant combustion, carbon monoxide and unburnt hydrocarbons are negligible, without a catalytic converter.
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Not going into the same discussion again....
 

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