Jet engine water injection tests

Adding a water/methanol injection system to a DIY jet engine can significantly increase the power output. This test is the first of many to determine the proper amount of water to inject. We definately need to go with a bigger injector, as the results should have been more dramatic.

Category:

Autos & Vehicles

Tags:

• diy
• turbine
• jet
• engine
• bike
• badbros

[wadsworth1968]

i want to see this guy ride that bike.

[BadBros]

You'll get to see it soon enough. I have just been finalizing the programming for the on board control computer and external wireless interface to a laptop computer for diagnostics. Trust me, I want to see me ride it too!

[jamesdnz]

Hi, so where do you inject the water, how does water inprove performance, is it turning it into steam or something. Thanks

[BadBros]

I am injecting the water right before the combustion chamber. The water helps to cool the combustion chamber while allowing greater thermal expansion, and the flash to steam performs a thermal expansion as well. A mix of water and methanol does work better than just water. This is an old technique used my the military and large commercial airliners to increase thrust during takeoff and high load conditions when an extra burst of power is needed.

[nads1978]

You also inject water to create a larger mass flow, because you are adding something extra to the already compressed air. The steam that is made is cooler than the exhaust gasses therefore allowing you to increase the fuel and maintain the same TIT (turbine inlet temperature). More fuel + more water = more thrust!

[RHEAD100]

Very smart. I was woundering when someone would be smat enough to use the heat of a jet to make steam. water expans 4 times as much as jet fuel. Just don't over do it and blow it up.

One more time. Damn smart. I would love to shack your hand.

[SKarmytech]

Are you the one who wrote an article on Instructubles on how to build a turbine jet engine, jsut asking cause thta bike is really similar to the one that is shown in a pic at the end.

[heliraptorcbm]

it all so help in lowering the tit

[nads1978]

You also inject water to create a larger mass flow, because you are adding something extra to the already compressed air. The steam that is made is cooler than the exhaust gasses therefore allowing you to increase the fuel and maintain the same TIT (turbine inlet temperature). More fuel + more water = more thrust!

[1alopezpr]

We are getting there,but lets be cauteous,don't think the gas corps will like that.Nice job,kudos!

[okdon]

Mono AoV, He's right with his explanation. The average automobile engine is only 18% percent efficent do to heat loss during combustion. Heat energy is lost in the exaust, radiator, engine block etc.

[chevyrulesu]

intresting stuff, good work id really like to see a video of your bike

[Spoolingturbo6]

Dude you don't need water......You need to use pure methenol !

I've got a pump that withstands Methenol ( special seals ) msg me

[MonoAoV]

has it ever occurred to you that you might inadvertently be creating oxy-hydrogen gas along with cooling your combustion chamber? its usually made from water using electrolysis but your engine may be hot enough to excite the molecules into disassociation. look into it, i think your doing something nobodys tryed yet. props. killer bike btw.