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How does a Thermal power plant work ? with Английский subtitles   Complain, DMCA
  

thermal power plants help me almost half of the world's power

they use water as the working fluid

today's thermal power plants are capable to run under green

in this video we will see how a coal-based­\n

by turning the shaft of this generator we will be able to generate

the generator derives motion from a\n

in order to turn steam turbine, you have to supply a high pressure

as the turbine absorbs energy from the high-energ­y fluid

its pressure and temperatur­e drop toward the outlet

you can take a closer look at the\n

high capacity power plant often use different stages of steam

so now we have met our objective, we have produced electricit­y

if we can bring the low pressure and low temperatur­e steam back to

which were of a much higher pressure and temperatur­e we can repeat

the first step is to raise the pressure

you can use a compressor for this purpose

but compressin­g steam is a highly energy\n

the easy way is to convert the steam\n

for this purpose we'll introduce\­ncondenser heat exchangers

which sit beneath the low pressure turbine

in the condenser a stream of cold water flows through the tubes

the steam rejects heat to this liquid\n

now we can use the pump to increase the pressure of this feed

typically multistage­s traffical pumping is used for this purpose

that way the pressure will revert to its\norigi­nal state

the next task is to bring the\n

for this purpose heat is added to the\n

high capacity power plants generally use a type of boiler called a

pulverized coal is then burnt inside boiler

the incoming water initially passes through any economizer

here the water will capture energy from the flue gas

the water flow straight down-comer

and then through water walls,\nwh­ere transforms into steam

the pure steam is separated at a steam drum

now the working fluid is back to its\norigi­nal state

high pressure and high temperatur­e

this steam can be fed back into the steam turbine

and the cycle can be repeated over and over again\n

but a power plant working on this basic Rankine cycle will have a

we can increase the performanc­e of the power plant considerab­ly

in case of super heating even after the liquid has\n

and with that the steam becomes super-heat­ed

the higher the temperatur­e of the steam the more efficient the

just remember the Carnot's theorem of maximum thermal efficiency

but the steam turbine material will not\n

so super heating is\nlimite­d to the threshold

the temperatur­e of the steam decreases\­n

consequent­ly a great way to increase the\n

more heat after the first turbine stage

this is known as reheating and it will\n

again leading to a high power output and\ngreat­er efficiency

the low pressure size of the power plan are prone to suck the

even with sophistica­ted ceiling arrangemen­ts

the dissolved gases in the feed water\n

to remove these dissolved gases and open\n

hot steam from the turbine is mixed into the feed water

steam bubbles so generated will absorb the dissolved\­ngases

the mixing also preheats the feed water\n

all these techniques make the modern\n

now we'll take a look at how heat addition

and heat rejection are executed in an\nactual power plant

the cold liquid is supplied at the\n

the heated up water from the condensor are rid is sprayed in the

and the sprayed water loses heat

this is how a colder liquid is always\n

at a heatdation inside\nth­e burning coal produces many pollutants

we cannot release these pollutants­\ndirectly into the atmosphere

so before transferri­ng them to a stack\n

the ESP uses plates with high voltage static electricit­y to absorb

we hope that we've given you\n

Thank you for watching the video

   

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