burning without power

[Haya]

I have read about a technique that uses very high pressure so that temperature gets very high in order not to use any type of power or energy and the selected thing burns....may any one explains me more details about this technique, what is it called, how true is it because i have a doubt about it.

Thanks in advance..

[Phi for All]

I have read about a technique that uses very high pressure so that temperature gets very high in order not to use any type of power or energy and the selected thing burns....may any one explains me more details about this technique, what is it called, how true is it because i have a doubt about it.

Thanks in advance..

 

Where did you read about it? Can you provide a link to what you read?

[studiot]

Very high pressure without expenditure of very high power.

 

Sounds very witchy to me, almost like magic.

 

[Country Boy]

That's how a diesel engine works! Instead of having a sparkplug to ignite the gas mixture, the piston compresses the gas mixture enough that the increase in termperature ignites it. There is no expenditure of energy to create a spark and, once the engine has started, the energy from the previous ignition cycle is used to compress the next cycle. Of course, diesel engines are notoriously hard to start!

Edited October 29, 2016 by Country Boy

[studiot]

The maximum thermal efficiency of a diesel engine is 56% so more than half the power is wasted.

 

I don't call that without expenditure of high power.

[Endy0816]

Compression ignition, though compression itself takes energy.

 

 

 

Edited October 29, 2016 by Endy0816

[Haya]

 

Where did you read about it? Can you provide a link to what you read?

 

 

Very high pressure without expenditure of very high power.

 

Sounds very witchy to me, almost like magic.

 

 

 

That's how a diesel engine works! Instead of having a sparkplug to ignite the gas mixture, the piston compresses the gas mixture enough that the increase in termperature ignites it. There is no expenditure of energy to create a spark and, once the engine has started, the energy from the previous ignition cycle is used to compress the next cycle. Of course, diesel engines are notoriously hard to start!

 

 

The maximum thermal efficiency of a diesel engine is 56% so more than half the power is wasted.

 

I don't call that without expenditure of high power.

 

 

Compression ignition, though compression itself takes energy.

 

 

 

Thank you all. So, it is called compression ignition.

[John Cuthber]

And it takes quite a lot of power to make it happen. The energy is supplied by the man's hand.

[Endy0816]

And it takes quite a lot of power to make it happen. The energy is supplied by the man's hand.

 

Yeah, I keep thinking it'd be fun to buy a fire piston, but still requires a fair amount of force(and good conditions).