HP BYPASS & LP BYPASS SYSTEM in THERMAL POWER PLANT

High pressure bypass system and low pressure bypass system description in thermal power plant.
*System description
*Why it is used
*Block diagram
*Flow diagram
t.me/powerplan...
Thanks
POWER PLANT GYAN

[@atulkumar-fi8il]

Very helpful sir, thanks alot

[@prasantakumarsahoo4399]

Keep continuing such type of videos sir...

[@prasantakumarsahoo4399]

Very very helpful sir I have joinied as ntpc diploma trainee . And this video is very very helpful sir. Hope sir u will upload more and more regarding subjects... Big big thank u sir....

[@POWERPLANTGYAN]

Thanks for your review.

[@priyabratanm]

Very useful ...Thank you

[@ravitiwari4189]

Very good video sir..

[@POWERPLANTGYAN]

Thanks

[@sultanali-hq7et]

this video is really very helpfull, I got many information from this, if you do a video for gland steam condenser I will be very gratfull

[@POWERPLANTGYAN]

Thanks for your review & I will make a video on gland seal system ( including all components ) and uploaded soon. Thanks

[@prasantakumarsahoo4399]

Yes sir waiting for gland system ...

[@niharikagarg4877]

Thanks

[@POWERPLANTGYAN]

🙏

[@prasantakumarsahoo4399]

Sir i understood that in startup of boiler, There is not sufficient heat of boiler at starting condition.so that it will not make ms to 540degree celcius. So that we bypass the steam by bypassing the turbine portion by pressure and temp reducing . This bypass circulation conditions exists till boiler is not able to produce 540 degreee celcius . In only turbine turbine trip condition (boiler is in service) how MS temp increses in bypass system? Bcz in bypass system steam circulates by omitting the turbine portion and by pressure and temperature reducing conditions. And finally it goes to condenser, hotwell and the steam attains 45 degree celcius. So in every turbine bypass cycle steam attains 45 degree celcius with water form in condenser hot well . And in every water cycle though the boiler ,boiler temperature is constant as boiler is in service. So boiler gives equal temperature in every bypass circulation to the water for steam formation . If steam attains such type of cycle then, how ms temp increase by bypass operation as boiler gives equal heat in every by pass circulation of water ?

[@prasantakumarsahoo4399]

Only start condition of boiler ms temperature is not greater than turbine metal temperature. So we need bypass . And when boiler is in service and turbine tripped , then in that time ms temp is greater than turbine metal temp. But still we need bypass bcz we do not want to go steam to the turbine for turbine maintanace. In that conditions we also bypass all steam to condenser by temp and pressure downing.

[@POWERPLANTGYAN]

Some important points regarding this comments 1- in by pass (HPBP & LPBP) operation temperature is not increased. 2- pressure and temperature is reduced according to downstream condition. 3- steam flow is regulated. 4- after tripping of turbine while boiler running, pressure & temperature both play in roll for reloading of turbine. 5- For restarting (rerolling of turbine) conditios are as follows:- (A) time gap for restarting/ rerolling (B) parameters required as according to turbine startup curves (X-curves) (C) temperature is greater than turbine metal temperature is thumb rules for all types of turbines significant meaning is that pressure & temperature required for turbine. (D) Steam parameter require for entry in to the turbine is given by X-Curves.

[@jitubabusay2826]

Bd valve kyun lagaya jata hai?

[@hrishikeshraising4110]

Sir , sound issue should be improve

[@POWERPLANTGYAN]

Ok

[@PawanKumar-gh4rp]

Sir BPE ka full form kya h, jo daigram me aap likhe h

[@anuragdwivedi7697]

सर आप नए vedio क्यू नहीं बना रहे हैं.... पावर प्लांट के अपने अथाह ग्यान की कुछ बूंदे हम गरीबों को भी प्रदान कीजिए... ताकि हम लोगों का भी ज्ञानवर्धन हो सके... 🙏🙏🙏🙏🙏🙏🙏

[@tfi2452]

Love it. May i be your friend

[@prasantakumarsahoo4399]

Sir in hp and lp bypass, is there steam go to reheater after desuperheating in crh line ?

[@POWERPLANTGYAN]

(Flow path Superheater - MS line - HPBP - CRH Line - RH - HRH line - LPBP - dumped to condenser .) For details see video fully if skipped then chance to confuse.

[@murugesankaruppaiah1653]

Try to change the title in hindi.

[@POWERPLANTGYAN]

Ok

[@prasantakumarsahoo4399]

Why ms temp should > boiler temp at restart...

[@POWERPLANTGYAN]

MS temperature is greater than turbine metal temperature (> boiler temperature is not meaningfull ). MS temperature is > turbine metal temperature because of if ms temp is equal or less then steam is condensed in turbine and unable to do the work. So "MS temp = saturation temperature of steam+ 100 C " this is minimum MS temperature criteria for any type of turbine to enter the steam in to the turbine. Also superheat steam cools the turbine while runing on load.

[@prasantakumarsahoo4399]

Sorry sir I have written Boiler temperature instead of turbine metal temperature .

[@Rahul-qe9gc]

@@POWERPLANTGYAN sir why dont u upload more videos, u explain very good

[@POWERPLANTGYAN]

For making a video it require a lot of time. For a topic first study a topic from various sources, collect data, analysed with different plans schemes & data , analysed with experiences and last is that I am also working in a Thermal Power Plant. Few month ago I am away from KZbin. Very soon I am continue at this channel. Thanks for you & several engineer/professionals who are taking interest in this channel. And the last, I say that this channel is for you and several engineer/professionals. Thank you.