pilots, help!

[CieloDiosa 0]

or anyone else who knows!!!

i have to write a short paper on the similarities and differences between the 4 stroke reciprocating engine and the gas turbine.


sorry ive resorted to a useless thread
but im stuck in a rut on this damn paper

any help would be appreciated!!!!!!
ive got some info... but not much/enough

edit: i sure did spell half this post wrong, huh

~boogie ho!!
pull before impact!
L.A.S.T#14, PMS #309, Ci EL O DI O SA

[quade 4]

All your problems will be solved if you do a little research on the evolution of the super charger and turbo super charger during WWII.

Long story short . . . they figured out you didn't need the piston parts.

Do a little Googling and search for the guys that make home made jet engines out of surplus turbo chargers.

Here's one to get ya started.

http://pfranc.com/projects/turbine/top.htm

quade -
The World's Most Boring Skydiver

[CieloDiosa 0]

haha
thanks,
i have this website that describes and illustrates both but im not very good about correlating the 2..

that and i think we're already supposed to know the simmilarities and differences.

~boogie ho!!
pull before impact!
L.A.S.T#14, PMS #309, Ci EL O DI O SA

[wingnut 0]

both use a fuel for combustion to expand gases and drive either a piston down or a turbine around.......difrences.... one produces power through moving a crank shaft the other prodecs high pressure air.........pmme if youstill need help....

______________________________________
"i have no reader's digest version"

[PLFKING 4]

Quote

pmme if youstill need help....

Me too.....I don't know s*** about the differences, but I can help translate Dave's typing.

"When in doubt I whip it out,
I got me a rock-and-roll band.
It's a free-for-all."

[mx757 4]

gas turbine is just an overpowered vacume cleaner..

[mx757 4]

piston engine compresses fuel / air mixure and then ingites it to produce power, the gas turbine compresses air then moves it across vanes which compress it more and air when compressure gets hotter.. then it addes fuel which expanes out rapidly producing thrush.. Power)

[CieloDiosa 0]

thanks boyz!!!!!!!!!!!!

much appreciated

~boogie ho!!
pull before impact!
L.A.S.T#14, PMS #309, Ci EL O DI O SA

[pilotdave 0]

What class is it for? That might make a very big difference to the types of answers you get. Thermodynamics or history? There are a lot of ways to answer the question. If ya don't care about Otto Cycles and Brayton Cycles, we'll stay away from em. Can't find my propulsion thermo textbook anyway.

Ok, you asked for pilots, not engineers. I'll say they both make a lot of awesome noise when attached to an aircraft, but turbines are waaaay cooler.
It's after 2am. That's all I've got.

Dave

[popsjumper 2]

Quote

....Thermodynamics.....

OMG Thermo has come back to haunt me...even HERE!

NOOOOOOOOOOOOOOOOOOooooooooooooooooo

My reality and yours are quite different.
I think we're all Bozos on this bus.
Falcon5232, SCS8170, SCSA353, POPS9398, DS239

[piisfish 140]

yeah and turbines get to altitude quicker...

scissors beat paper, paper beat rock, rock beat wingsuit - KarlM

[cocheese 0]

You know it's a turn on to hear chics talk about gas turbines and jet engines don't you ? Mention rocket engines and i'm going to have to take a cold shower.

[flyhi 24]

Quote

gas turbine is just an overpowered vacume cleaner..

Or a blown up balloon which you hold between two fingers and let go and have it whiz around the room only to eventually hit your mother's vase and tip it over, spilling water into the back of the TV.

Now, think of that balloon as having an endless supply of that compressed air. That's a turbine.

Shit happens. And it usually happens because of physics.

[CieloDiosa 0]

it is for IT220... aircraft powerplats! AHHHhhh

but i should have said engineers as well.. my bad!

thanks for the help! i finished the paper

~boogie ho!!
pull before impact!
L.A.S.T#14, PMS #309, Ci EL O DI O SA

[mx757 4]

lets see your paper...

[CieloDiosa 0]

here ya go

i used every piece of info you guys gave me!

oops, edit to add doc

~boogie ho!!
pull before impact!
L.A.S.T#14, PMS #309, Ci EL O DI O SA

[mx757 4]

not bad..
should posted it here first and we could have edited it for you / suggested changes etc to make sure you got a "Gold Star" on this paper..

[mx757 4]

both pison engines and turbines (turboprops) turn a shaft which in turn turns the propelers..

[airtwardo 7]

Turbines Have Ruined Aviation!!

We must get rid of turbines.


They are ruining aviation.


We need to go back to big round engines.
Anybody can start a turbine, you just need to
move a switch from "OFF" to
"START" and then remember to move it back
to "ON" after a while.


My PC is more difficult to start. Cranking a round engine
requires skill, finesse and style. On some planes, the
pilots are not even allowed to do it. Turbines start by
whining for a while, then give a small lady-like poot and
start whining louder.


Round engines give a satisfying rattle-rattle, click-click
BANG, more rattles, another BANG, a big macho fart or two,
more clicks, a lot of smoke and finally a serious low
pitched roar. We like that. It's a guy thing. When you
start a round engine, your mind is engaged and you can
concentrate on the flight ahead.


Starting a turbine is like flicking on a ceiling fan:
Useful, but hardly exciting.


Turbines don't break often enough, leading to aircrew
boredom,complacency and inattention. A round engine at
speed looks and sounds like it's going to blow at any
minute. This helps concentrate the mind.

Turbines don't have enough control levers to keep a
pilot's attention.There's nothing to fiddle with during
the flight.


Turbines smell like a Boy Scout camp full of Coleman
lanterns.


Round engines smell like God intended flying machines to
smell.

~ If you choke a Smurf, what color does it turn? ~

[mx757 4]

use that on your report.. I bet you'll get a A

[Zep 0]

compared to a reciprocating engine of the same size and tend to use more fuel when they are idle.


Hate to correct yor text but I think you need to put "at idle" as "when they are idle" suggests that the turbine is powerd down
thus using no fuel.

Don't take it the wrong way it's only a suggestion

edit to add 10/10

Gone fishing

[jumper03 0]

Quote

Quote

....Thermodynamics.....

OMG Thermo has come back to haunt me...even HERE!

NOOOOOOOOOOOOOOOOOOooooooooooooooooo

Also known as Thermogoddamnics....

Scars remind us that the past is real

[CieloDiosa 0]

no i appreciate that zep thanks!!!!!!!!!!!!!!
and a big thanks to you too airtwardo!
haha

you guys are awesome

~boogie ho!!
pull before impact!
L.A.S.T#14, PMS #309, Ci EL O DI O SA

[airtwardo 7]

Quote

and a big thanks to you too airtwardo!

Quote

Just MY opnion...your milage may vary!

~ If you choke a Smurf, what color does it turn? ~

[pilotdave 0]

Since I used to work for a major engine company's turbine vane department, I shoulda mentioned that vanes don't compress, they just redirect the flow. The compressor has multiple stages, and it's important that the flow hits each stage at the proper "angle of attack." Same idea with the turbine... to generate power, you've gotta properly direct the exhast flow at each turbine stage so it hits the blades at just the right angle. Blades do work, vanes just sit there.
The really cool thing about turbine vanes is that the air flow around them can actually be higher than the melting point of the material they're made of. They get cooled (by extremely hot air actually) internally. The turbine vanes are actually one of the most secretive parts of a modern (military) engine. The hotter you can allow them to get, the more efficient the engine will be. They're really the limiting factor since they sit right at the hottest part of the engine.

Dave