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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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Entropy

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What is Entropy? Entropy is a scientific concept that is most commonly associated with a state of disorder, randomness, or uncertainty. First law of thermodynamics The first law of thermodynamics states that energy can neither be created nor destroyed, only altered in form. Second law of thermodynamics Kelvin & Planck statement "No (heat) engine whose working fluid undergoes a cycle can absorb heat from a single reservoir, deliver an equivalent amount of work, and deliver no other effect" Clausius statement "No machine whose working fluid undergoes a cycle can absorb heat from one system, reject heat to another system and produce no other effect" Both statements of the Second Law constrains  the First Law of Thermodynamics  by identifying that energy goes downhill. The Second Law is concerned with Entropy (S) which is produced by all processes and associated with the loss of ability to do work. The Second Law states that the entropy of the universe in...
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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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