Turbine engine compressor stages
11-21-2015, 11:30 AM
#3
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Joined APC: Feb 2013
Posts: 65
Yes, that's what I meant. Thanks. Do you possibly have a good resource for this information that I could explore?
It was surprisingly difficult to get a straight answer about a seemingly simple question. I know that the volume gets smaller as the air is compressed and the blades get smaller but I wasn't sure how the compressor continued to further and further compress the air.
So just to sum up, the way the compressor continues to further compress the air as it progresses from one rotor to the next is by increasing the amount of blades per rotor. - Is that correct?
I know that most turbine engines have multiple compressors which rotate at different speeds.
It was surprisingly difficult to get a straight answer about a seemingly simple question. I know that the volume gets smaller as the air is compressed and the blades get smaller but I wasn't sure how the compressor continued to further and further compress the air.
So just to sum up, the way the compressor continues to further compress the air as it progresses from one rotor to the next is by increasing the amount of blades per rotor. - Is that correct?
I know that most turbine engines have multiple compressors which rotate at different speeds.
11-21-2015, 09:53 PM
#4
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Joined APC: Oct 2014
Posts: 249
Originally Posted by TheStranger
Yes, that's what I meant. Thanks. Do you possibly have a good resource for this information that I could explore?
It was surprisingly difficult to get a straight answer about a seemingly simple question. I know that the volume gets smaller as the air is compressed and the blades get smaller but I wasn't sure how the compressor continued to further and further compress the air.
So just to sum up, the way the compressor continues to further compress the air as it progresses from one rotor to the next is by increasing the amount of blades per rotor. - Is that correct?
I know that most turbine engines have multiple compressors which rotate at different speeds.
It was surprisingly difficult to get a straight answer about a seemingly simple question. I know that the volume gets smaller as the air is compressed and the blades get smaller but I wasn't sure how the compressor continued to further and further compress the air.
So just to sum up, the way the compressor continues to further compress the air as it progresses from one rotor to the next is by increasing the amount of blades per rotor. - Is that correct?
I know that most turbine engines have multiple compressors which rotate at different speeds.
You can look at any cutaway and see how the compressor case gets more narrow and the blades get more numerous.
11-21-2015, 10:36 PM
#5
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Joined APC: Apr 2006
Posts: 2,010
Originally Posted by TrakTrak
The core of a jet motor is like a venturi tube.
Motors are electric (and in some cases hydraulic).
Saying motor is like dragging your nails across a chalk board for me.
11-22-2015, 05:15 AM
#6
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Joined APC: Jan 2006
Position: Engines Turn Or People Swim
Posts: 39,261
Originally Posted by Thedude
Not to sound pedantic but it is a jet engine and not a motor.
Motors are electric (and in some cases hydraulic).
Saying motor is like dragging your nails across a chalk board for me.
Motors are electric (and in some cases hydraulic).
Saying motor is like dragging your nails across a chalk board for me.
Traditionally in engineering circles, a motor is a device which converts energy to motion. An engine is a device (motor) which converts thermal energy to motion.
So an engine is a special case of motor, and it's probably OK to call it a motor because it is one.
11-22-2015, 12:51 PM
#7
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Posts: 249
Originally Posted by Thedude
Not to sound pedantic but it is a jet engine and not a motor.
Motors are electric (and in some cases hydraulic).
Saying motor is like dragging your nails across a chalk board for me.
Motors are electric (and in some cases hydraulic).
Saying motor is like dragging your nails across a chalk board for me.
11-22-2015, 01:10 PM
#9
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Joined APC: May 2010
Position: Baja Vermont
Posts: 5,177
A motor is different than an engine, that's why they are NOT interchangeable. A motor uses mechanical power generated externally, an engine creates it. When you "dry motor" you are using mechanical power (pneumatic or electrical) to turn the spool.
Nails on chalkboard, indeed.
GF
Nails on chalkboard, indeed.
GF
11-22-2015, 01:32 PM
#10
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Joined APC: Feb 2006
Position: 767A (Ret)
Posts: 6,248
Originally Posted by rickair7777
For practical purposes, the two terms are synonymous in common usage.
World Wide Words: Engine and Motor
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