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Steam Turbine - Part III ( Turbine casing and its components)

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Casing  Based on high inlet pressure and temperature the casing construction shall be either single or double shell type. The double shell construction prevents the steam contact to the outer casing joint and it will be used in case of high inlet steam conditions. Single casing has all its stages in the one casing and all are connected to a common drive shaft. Steam expansion, controlled / uncontrolled extraction provision within casing. Double casing turbines have the exhaust steam circulating in the annular space between the casings as in case of high steam inlet condition and also the steam within the space will be taken into controlled / uncontrolled extraction for process / feedwater heating if required. Double shell casing Single shell casing The parts of the turbine that control the position of the rotating components in relation to the fixed components are supported and located precisely at shaft height, they move independently of each other. For smaller turbine, bearing ho...
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Science Teaching Tamil Movie songs

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After seeing the topic, people be like👇... Lets see.. Theeyae Theeyae song from Maatran Movie Yes,, the most ghajji song of the movie (Not in visuals but the lyrics are)... The lyricist described the feelings of an adolescence boy towards an adolescence girl where he used some engineering term also.. see it in below video See the video   அணு சிதைவில்லாமல் பெண்ணில் மின்சாரம்... Without Atomic reaction (அணு சிதைவு ) , electricity is not possible... Lets go to the main topic How Electricity works ??? Everything in universe is made from Atoms, including you! Different materials have different types of atoms. Atom  At the centre of an Atom is the Nucleus, this houses two particles known as the Neutron and Proton. The Neutron has no electrical charge but the Proton has a positive electrical charge. Surrounding the Nucleus are different layers of orbital shells which act like flight paths for another type of particle known as the electron. The elect...
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Steam Turbine - Part II (Compounding of steam turbine)

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Compounding of steam Turbine Compounding method in which energy from the steam is extracted in several stages rather than a single stage in a turbine. In all turbines, the rotating blade velocity is proportional to the steam velocity passing over the blade. If the steam is expanded only in a single stage from the boiler pressure to the exhaust pressure, its velocity must be extremely high. A  compounded steam turbine has multiple stages,  i.e., it has more than one set of nozzles and rotors, in series, keyed to the shaft or fixed to the casing, so that either the steam pressure or the jet velocity is absorbed by the turbine in several stages Compounding will be done mostly on Impulse type Turbine and for Reaction turbine the same is not required (except few cases of severe application, only pressure compounding can be done but it is different from the compounding arrangement discussed below)   Velocity Compounding   A velocity-compounded impulse stage...
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