bleed is amount of steam output from turbine through pipe and exit from final stage of turbine . this bleed enter to feed water heater (low and high) and deaereator to increase unit efficiency
or rather bleed is the amount of steam drained out of the steam turbine during the expansion of steam and this rejected heat energy is used to heat the feed water supplied to the boiler...........
bleeding is the process of draining steam from the turbine ,at certain points during its expansion,and using this steam for heating the feed water supplied to the boiler
-frm yogesh chaturvedi me eng. IET BU JHANSI
Extraction is controlled extraction of steam at medium pressure.it is usful in process application where pressure difference is not tolerable.while bleed is low volume extraction where pressure variation does not affect much.
bleed use for law pressure and un control ,Extraction is a control and high pressure steem.
Why extractions are taken out from steam turbine.
voloute convord the pressure into volicity and the mixtur of propallere and impeller is called turbine pump
1- it is amatter of preference 2- considered under gyroscopic precession
pelton turbine is used for high head low flow but the turgo turbine is used for low head high flow, in pelton turbine number of jet can increased but in turgo it can't be done, in pelton the water hits the bucket once at a time but in tugo it hits more than one
The Emergency Stop Valve (ESV) in a turbine is placed between the steam engine and the turbine structure. It is designed to rapidly close and prevent steam from reaching the turbine in case of emergency.
The extraction of steam can either be controlled or uncontrolled. In an uncontrolled extraction the pressure of the extracted steam will decrease with an increase in extraction flow from the turbine. In a controlled extraction the extraction pressure is kept constant as extraction flow is increased or decreased.
Why extractions are taken out from steam turbine.
the machine is the one that operates or makes the turbine work. the machine is the one that operates or makes the turbine work.
both are same using for rotating the turbine initially
RADITOR * Small generators either air cooled or water cooled 2 stroke. Autos are mainly 4 stroke and the majority watercooled.
it is difference between the water level from head race and tail race
Main difference is that in a gas turbine, combustion is continuous. In a piston engine, combustion is pulsed.
in a radial flow turbine the steam enters the turbine in the direction of its radius and leaves it in the direction of the axis of the shaft. in a axial flow turbine the steam enters the turbine in the direction of the axis of the shaft and leaves the turbine in the same direction.
voloute convord the pressure into volicity and the mixtur of propallere and impeller is called turbine pump
The ans is with respect to Thermal Power plants: the basic difference between a 500MW plant and 600MW palnt is in the turbine design. the 600MM turbine has 1 HPT, 1IPT and 2 LPTs, 2 Condensors and a generator. the 500MW turnbine has 1 HPT, 1IPT and 1 LPT, 1 condensor and a generator. HPT: high pressure turbine IPT: intermediate pressure turbine LPT: low pressure turbine
windmills are used for mechanical power and wind turbines to make electricity
Back pressure is the small amount of vacuum that is created when the used steam condenses from the turbine back into re-usable water.