The high temp, high pressure steam is expanded and cools as it drives the turbine. It's the thermal energy of the steam which is converted into mechanical work.
@BigBlue0425 They are trying to minimize horizontal(axial) movement of the shaft by creating a "tugging" effect of the shaft. They have the HP and IP, LP turbines tugging on each other, thereby reducing the load on the thrust bearing by moving torsion effects onto the shaft in between the HP and IP turbines.
@antwan0211 I'm not an expert, but I'll try to answer your question. A steam turbine is a mechanical device that is configured in such as way that it rotates as steam pressure is passed thru it. This rotation is used to drive an electric generator (electric generators need movement to produce electrical current flow).
Combined cycle plants of this type run at over 60% efficiency. Combined cycle plants make use of a gas turbine (similar to a jet engine) and steam turbine in series. The Siemens state of the art combined cycle plant in Germany which was put into operation abot 18 months ago has an efficiency of 64%. Not too shabby. Most conventional power plants have efficiencies of about 35% to 40%.
can some one state the reason why the direction of the steam (arrows) is flowing to right when the intermediate section and low pressure sections are to the left?
Small steam turbines are very inefficient. Anything smaller than about 250 HP uses a lot more fuel than a piston engine. Also turbines require dry steam ie no condensed water droplets since they would errode the turbine blades in short order. For a piston engine this is not an issue. One disadvantage of a piston engine is that if usually requires lubricating oil mixed with the steam to reduce friction and wear in the engine. Hope that helps.
A turbine is more effective since they are handling a much hotter steam than in piston engines, superheated steam. And when that superheated steam is released and allowed to expand through a series of turbines it can generate at lot more energy than a piston engine would.
not really. the mechanical power won by a turbine depends on the enthalpy CHANGE of the steam before vs after the turbine. the efficiency does not simply base on higher enthalpy either. e.g. higher pressure results in lower enthalpy if you are looking at the same temperatures for both pressures.
I've been looking into renewable energy and such,and found many sources of power are all made from steam turbines powering a generator.But when I look into it wouldn't a steam engine (A piston powered by steam) be more effective then blowing steam through a lot of big fans?Just wondering and would appreciate feed back.
Very interactive and well explained video to understand the steam turbine driven power generation system.
The best explanation I have seen so far.
Great pace and easy to understand graphics and technology.
It was a joke relevant to sales on the Steam website (for games), but thank you regardless for taking the time to write that.
The high temp, high pressure steam is expanded and cools as it drives the turbine. It's the thermal energy of the steam which is converted into mechanical work.
@BigBlue0425 They are trying to minimize horizontal(axial) movement of the shaft by creating a "tugging" effect of the shaft. They have the HP and IP, LP turbines tugging on each other, thereby reducing the load on the thrust bearing by moving torsion effects onto the shaft in between the HP and IP turbines.
@antwan0211 I'm not an expert, but I'll try to answer your question. A steam turbine is a mechanical device that is configured in such as way that it rotates as steam pressure is passed thru it. This rotation is used to drive an electric generator (electric generators need movement to produce electrical current flow).
Siemens is building turbines of this type for the North and South American markets in South Carolina. Sales are good.
the hp turbine is usually a noncondensing turbine hooked up to the impulse turbine
Combined cycle plants of this type run at over 60% efficiency. Combined cycle plants make use of a gas turbine (similar to a jet engine) and steam turbine in series. The Siemens state of the art combined cycle plant in Germany which was put into operation abot 18 months ago has an efficiency of 64%. Not too shabby. Most conventional power plants have efficiencies of about 35% to 40%.
This is super impressive!
can some one state the reason why the direction of the steam (arrows) is flowing to right when the intermediate section and low pressure sections are to the left?
Small steam turbines are very inefficient. Anything smaller than about 250 HP uses a lot more fuel than a piston engine. Also turbines require dry steam ie no condensed water droplets since they would errode the turbine blades in short order. For a piston engine this is not an issue. One disadvantage of a piston engine is that if usually requires lubricating oil mixed with the steam to reduce friction and wear in the engine. Hope that helps.
A turbine is more effective since they are handling a much hotter steam than in piston engines, superheated steam. And when that superheated steam is released and allowed to expand through a series of turbines it can generate at lot more energy than a piston engine would.
Great presentation
Thank you
Brett
fantastic and nice training animation....thanks
Big thank for your attention
The higher the steam enthalpy the greater the efficiency. Straight from fundamental thermodynamics.
This is all fascinating, but where are the sales?
Everytime the narrator said "turban", it drove me crazy.
In Washington DC anything above 15 lbs is concidered high pressure they said 85 psia is low pressure
not really. the mechanical power won by a turbine depends on the enthalpy CHANGE of the steam before vs after the turbine. the efficiency does not simply base on higher enthalpy either. e.g. higher pressure results in lower enthalpy if you are looking at the same temperatures for both pressures.
Does anyone perhaps know where i can guy miniature turbine models?
I've been looking into renewable energy and such,and found many sources of power are all made from steam turbines powering a generator.But when I look into it wouldn't a steam engine (A piston powered by steam) be more effective then blowing steam through a lot of big fans?Just wondering and would appreciate feed back.
It's a turBINE! thicko!
The thermal energy to mechanical? I thought it was the steam pressure that was converted to mechanical?
He may be referring to thermal energy of natural gas or fuel for gas turbine
"stationary or diaphram blades"
Uhh, no, it's called a stator, no matter what kind of steam turbine you have....
@117nathanmyers Power turbine? What do you mean by that.
Wow. It's like helping hands video to me. Thanks
Why does he say turbin?
Yes, did that contradict what I wrote or something?
It was very useful for me. Thanks!
qual e ovalor de cada turbinas
@ZenTrickz Nechtology is also amazing.
the generator will need excitation in order to produce magnetic field.
whats a steam turbin?
what is the efficiency of this plant?
I think this is very well explained and animated...Americans please stop feeling more superior than others...
why u no like Tesla turbine
Good Video!
with what program was this animations made? thank you
thank you for sharing
Sir muijhe Hindi me video kaise melengi
most excellent
the best
team
Hello guys. I'm foreigner and not that good on English. Could someone write what the man tells sentence by sentence? Thank you in advance.
very nice...
wtf its spelled turbine! not turbin... drove me crazy
Thanks
Good
anyone else from ME525 ?
what is interesting - everything
surprising - nothing
Very informative..thank you!
GOOD SIMULASI TURBIN GENERATOR PLTU
Mitsubishi machine!!!
varis
..
International System of Measurement... FAIL!!!
Good