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Wish You A Happy New 2008!. P M V Subbarao. JGL 710 : Power Plant Performance Analysis & Monitoring. By P M V Subbarao Mechanical Engineering Department I I T Delhi. Continuous Evaluations is the first step for the Growth !!!!!. James Watt : A Statue !!!.

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Wish You A Happy New 2008!

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Wish you a happy new 2008 l.jpg

Wish You A Happy New 2008!

P M V Subbarao


Jgl 710 power plant performance analysis monitoring l.jpg

JGL 710 : Power Plant Performance Analysis & Monitoring

By

P M V Subbarao

Mechanical Engineering Department

I I T Delhi

Continuous Evaluations is the first step for the Growth !!!!!


James watt a statue l.jpg

James Watt : A Statue !!!

  • Mrs. Campbell, Watt's cousin and constant companion, recounts, in her memoranda, written in 1798:

  • Sitting one evening with his aunt, Mrs. Muirhead, at the teatable, she said:

  • "James Watt, I never saw such an idle boy; take a book or employ yourself usefully;

  • for the last hour you have not spoken one word,

  • but taken off the lid of that kettle and put it on again,

  • holding now a cup and now a silver spoon over the steam, watching how it rises from the spout,

  • and catching and connecting the drops of hot water it falls into.

  • Are you not ashamed of spending your time in this way? "


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A Message to 20th Century

  • The problem of which Watt solved a part is not the problem of inventing a machine, but the problem of using and storing the forces of nature which now go to waste.

  • James Watt’s law: "The cylinder is kept as hot as the steam that enters."

  • "How simple!" you exclaim.

  • “Is that all? How obviously this is the way to do it!"

  • Very true, surprised reader, but true, also, that no condenser and closed cylinder, no modern steam engine.

  • “How is it Better?’’

  • A Kilogram of weight can be lifted through more distance using one kilogram of steam!

  • “How Big is this Engine?’’

  • A small engine is equivalent to Few Horses : Horse Power!

  • How to harness this power and store it-that is the problem of the inventor and the engineer of the twentieth century, a problem which in good time sure to be solved.


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James Watt : Father of Performance of A Prime Mover

  • James Watt was born in Greenock in 1736, the son of a ship's chandler (trader in canvas, etc).

  • In his late teens he went to London to learn to be a "mathematical and philosophical instrument maker“.

  • He got a job making instruments with Glasgow University, who gave him accommodation and a workshop.

  • In 1763 John Anderson asked him to repair a New Comen steam engine he had acquired.

  • Two years later, while wandering aimlessly through Glasgow Green, Watt hit upon the idea of condensing the steam in a separate vessel.

  • In 1882, 63 years after Watt's death, the British Association gave his name to the unit of electrical power.


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The Concept

  • Performance: Production Capability & Efficiency of Power Plant & Equipment.

  • The performance of a power plant can be expressed through some common performance factors as

  • ·     Heat rate (energy efficiency)

  • ·     Thermal efficiency

  • ·     Capacity factor

  • ·     Load factor

  • ·     Economic efficiency

  • ·     Operational efficiency

  • Performance Analysis : Evaluation of performance factors using measured plant data.

  • Design Performance : Where You Should Be

  • Monitored Performance: Where You Are


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Major Equipment in Rankine Cycle


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