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-Check turbo generator lube oil sump level and drain it for water. Replenish it if level is less than normal.
-Start the lube oil priming pump from the local station and check the lube oil pressure. Put the priming pump on auto.
-Check and fill up the Turbine Generator vacuum pump operating water tank to normal level.
-Check vacuum condenser condensate level from the condensate pump. Put the pump on auto so that the level is maintained all the time.
-Operate the steam drain valve to drain any condensed water from the steam line to avoid excessive hammering and vibration while starting turbo generator.
-Open the main steam inlet valve for turbo generator.
-Adjust the gland steam pressure to normal level.
-Check and open the sea water valves for vacuum pump cooler, T/G lube oil cooler and vacuum condenser are opened.
-Start the vacuum pump and bring up the vacuum in the condenser.
-Open condensate pump valves and switch on the pump.
-Check whether the condensate vacuum, gland steam pressure, steam inlet pressure, and lube oil pressure are normal.
-Start turbo generator from the local station and close the drain in the steam line.
-Check first and second stage steam pressure.
-Check condenser vacuum and water level.
-Check lube oil pressure and vibration levels.
-Check turbo generator speed, voltage, frequency, vacuum, condenser level and other parameters.
-Give control to remote station from the local control and take the TG on load.
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How does a Ljungstrom steam turbine work and look like?
Ljungstrom Turbine is a Radial Outflow Steam Turbine with two counter rotating discs. Blades are mounted in circles one bigger than the other. Blades of one rotor work as nozzles for the other rotor blades. This turbine design is very forgiving on wet steam. It is said that the turbine design had limitations on scaling up above 30 MW and hence could not compete with Axial Flow Turbines.
Why would you not heat the steam coming out of turbine and feedback to turbine?
becouse this steam is use repetdly for the turbine
What is heat rate of steam turbine How to calculate heat rate of steam turbine?
manish
What is positive axial displacement of steam turbine?
axial shift of a steam turbine is the shifting of turbine rotor in the forward and backward direction due to steam thrust on blades of rotor.
What is a steam turbine?
It is an engine.A steam turbine is a heat engine that uses the expansion of steam passing through stationary nozzles and blades on a shaft to turn the shaft. The steam can move through the turbine axially (one end of shaft to the other end), radially (shaft to outer casing), or tangentially (around the outer edges of the turbine wheel). In an impulse turbine, the steam is expanded in nozzles and pushes the blades. In a reaction turbine the steam is expanded in the nozzles AND in the blades, the reaction of the expansion of the steam pushes away from the blades spinning the wheel in the process. The expansion of the steam is necessary to increase its velocity through the turbine.
How many stages of steam turbine rotor?
It depends upon megawatt of turbine & design of blades.
How does a Ljungstrom steam turbine work and look like?
Ljungstrom Turbine is a Radial Outflow Steam Turbine with two counter rotating discs. Blades are mounted in circles one bigger than the other. Blades of one rotor work as nozzles for the other rotor blades. This turbine design is very forgiving on wet steam. It is said that the turbine design had limitations on scaling up above 30 MW and hence could not compete with Axial Flow Turbines.
Why extraction taken from steam turbine?
Why extractions are taken out from steam turbine.
Why would you not heat the steam coming out of turbine and feedback to turbine?
becouse this steam is use repetdly for the turbine
Should steam turbine be operated at low loadings?
No, a steam turbine should not be operated at low loadings. This will only utilize the tips of the blades, causing twist that is outside of design parameters. You can operate this way, but the time you can do so is limited.
Why vacuum is created in condenser on steam turbine?
Firstly, vacuum is being created in turbine exhaust and condenser rather than being required. It is created to reduce the back-pressures and to improve the turbine efficiency. Also, with vacuum the designers can design large size last stage blades of LP turbine for maximizing the turbine output.
What are the preventive maintenance of steam turbine?
The preventive maintenance of steam turbine mainly entails frequent servicing of the parts. This will ensure a smooth performance of the steam turbine.
What type of cycle used in steam turbine?
Rankine cycle is used in steam turbine
What is heat rate of steam turbine How to calculate heat rate of steam turbine?
manish
How does steam turbine works?
Steam or water, it works the reverse of a fan, where the fan pushes air down, the turbine is turned by the steam or water. there's a shaft leading from the turbine to the generator, which produces the electricity
Why you are maintain the vacuum in steam turbine explain me briefly?
why we are maintain vacuum in steam turbine at steam outlet or exhaust side
Nozzle clearance how to steam turbine?
Steam turbine nozzle clearance is the total energy content available in steam. This is through a valve.
