Hay guize, look at my science project!!!!!

[CrYsIs]

Note: title changed (original - can jet engines be used to power automobiles)

Firstly by automobiles i mean mass production passenger vehicles and not experimental/NASA vehicles.

So,this question was asked to me by an external during project submission day to which i replied "hopefully in the future,Sir!".

The main advantages of jet engine over IC automobile engines are:-


1) Jet engines have an extraordinarily high efficiency rate.Almost all of them are above 70%.The IC engines have a poor efficiency because of the conversion of linear motion to rotational motion.

2) On an average jet engines uses 70% lesser parts as compared to IC engine.So lesser complications.

Main disadvantages:-

1) dealing with the exhaust gases which are very hot

2) jet engines are exposed to wear and tear because of a higher chances of a foreign object entering and damaging the blades.

[jzamp]

So, you asked a question and then gave the answer...
cool but why?

[StuRat]

So everyone can see that he's still here.

[CrYsIs]

So, you asked a question and then gave the answer...
cool but why?

i mean can we devise a mechanism to use jet engines in passenger cars.I have written the main advantages and disadvantages of it.

[StuRat]

No, because it's not practical.

[twinblade]

No, because your average mechanic can't overhaul a jet engine.

[Kilgor]

http://en.wikipedia.org/wiki/Chrysler_Turbine_Car

While technically not a jet engine. Of course many jet engine drag cars exist.

[Andrew Chalmers]

Most jet engines are internal combustion engines. Also there are many types of jet engines - but generally - they all create thrust by moving a jet of air.

WTF would you want a jet of air being expelled at a high rate of force on the road?


At least bother to learn how automobiles, the standard piston engine works, transmissions and differentials work.

If you want a bloody skateboard being pushed around setting other cars and the pavement on fire - sounds like you belong in Looney Tones.

Turbine engines, as Kilgor has noted has been utilized for ships, trains, tanks, cars, motorcycles. But NO - they are not as efficient or responsible as a piston engine of comparable size over the whole range of rpm demands needed for automobiles.

Cars, for the most part, aren't stationary electric power generation devices - you can't just warm it up, and run it at 8000 rpm endlessly. People don't drive that way. Maybe if you rigged it to a series-hybrid - but I hate to break it to you kid, the power to weight ratio benefit of turbine engines is outweighed by the cost to make them work efficiently and manufacture them cheaply, and if you're going to rig up a Volt to a turbine engine - what's the ****ing point on the power to weight ratio of a 50 pounds improvement when you're putting another 300 pounds in batteries and generator.

[CrYsIs]

Most jet engines are internal combustion engines. Also there are many types of jet engines - but generally - they all create thrust by moving a jet of air.

WTF would you want a jet of air being expelled at a high rate of force on the road?


At least bother to learn how automobiles, the standard piston engine works, transmissions and differentials work.

If you want a bloody skateboard being pushed around setting other cars and the pavement on fire - sounds like you belong in Looney Tones.

Dude didn't you read the post where i clearly mentioned "IC automobile engines".All the engines operating in the world today are IC engines.

Secondly thrust is not created by just moving in jet of air.Rather when compressed air is mixed with fuel and is ignited in the combustion chamber resulting in the mixture escaping from the outlet,thus creating thrust.

[PaulClift]

Jaguar had a concept in 2010 of a gas turbine hybrid. The engine topping up electric power for motors on the wheels.

I believe the production version is going to ditch the jet engine for a supercharged 1.5 ic.

http://www.topgear.com/uk/car-news/j...ial-2011-05-06

[Sniffit]

This is probably as close as you can get.

http://en.wikipedia.org/wiki/Jaguar_C-X75

[Andrew Chalmers]

Yinz are confusing jet engine with turbine engines. The poster was asking about jet engines.

All the engines operating in the world today are IC engines.

Have you ever heard of the steam engine?

Secondly thrust is not created by just moving in jet of air.Rather when compressed air is mixed with fuel and is ignited in the combustion chamber resulting in the mixture escaping from the outlet,thus creating thrust.

So you can articulate how a jet engine creates thrust beyond the general principle that jet engines utilize jet propulsion to create thrust - but you still think it is viable for mass production road automobiles?

[CrYsIs]

Have you ever heard of the steam engine?

do you use steam engine in automobiles nowadays?

[CrYsIs]

Turbine engines, as Kilgor has noted has been utilized for ships, trains, tanks, cars, motorcycles. But NO - they are not as efficient or responsible as a piston engine of comparable size over the whole range of rpm demands needed for automobiles.

Cars, for the most part, aren't stationary electric power generation devices - you can't just warm it up, and run it at 8000 rpm endlessly. People don't drive that way. Maybe if you rigged it to a series-hybrid - but I hate to break it to you kid, the power to weight ratio benefit of turbine engines is outweighed by the cost to make them work efficiently and manufacture them cheaply, and if you're going to rig up a Volt to a turbine engine - what's the ****ing point on the power to weight ratio of a 50 pounds improvement when you're putting another 300 pounds in batteries and generator.

the massive cost in building a jet engine can be reduced by the use of turbochargers,what do you say about that?

So you can articulate how a jet engine creates thrust beyond the general principle that jet engines utilize jet propulsion to create thrust - but you still think it is viable for mass production road automobiles?

i was correcting your statement.Besides, i am not stating that we should be replacing piston engines with it.I am simply asking is it viable? if we make some modifications

[Xaito]

do you use steam engine in automobiles nowadays?

nowadays we're getting ready to use electric cars. I wouldn't pursue the idea of a jet-engine powered car if I was you - the whole market - especially engeneering and energy companies like Siemens etc will be pushing in that direction. Electric cars are their big vision for the future - and when they start lobbying, then laws will follow to prevent anything else.