Characteristic Curve of Centrifugal Pumps|| Basics || Lecture-6

[@rajvirsinhrajput]

Good information sir

[@ChemicalMahi]

Dear parmar thanks...

[@Luckysingh-ye9lq]

Might be there's a mistake in flowrate vs power in last point.....with increase in flowrate power decrease as somehow power increases

[@ashok2265]

BEP(Best Efficiency Point)

[@ChemicalMahi]

Dear already shared video...

[@nikhilsankhe3871]

Good easy to understand👌👌

[@chemicalengineer1985]

Your pumps series is excellent

[@ChemicalMahi]

Dear Thanks...

[@jayeshpatil4460]

hello sir agar pump ke discharge side me nrv nahi rahato kay effects hoge sir

[@gauravpatil9643]

Nice lecture

[@ChemicalMahi]

Keep watching

[@anoopkumarpandey348]

Mast

[@ChemicalMahi]

Dear Anoop Thanks...

[@popsjourney7164]

Can you do the Speed vs Torque curve of a centrifugal pump

[@ChemicalMahi]

Dear sure soon....

[@RahulPatil-vm8dl]

Thank you so much

[@ChemicalMahi]

Dear Thanks...

[@manjubalan498]

Sir can you please explaim pump hydraulics

[@ChemicalMahi]

Dear Manju sure very soon....

[@pranavsinhyadav1501]

Efficiency kya hoti he?

[@ChemicalMahi]

Dear Separate lecture is there on same topic...

[@jayeshpatil4460]

sir selection criteria pe bhi 1 lecture kariye sir like viscous liquid clear liquid solid semi solid

[@krushnpalgohil2967]

sir as increase in flow, efficiency also increase that's means perticular flow with good head but after maximum efficiency point we will increase flow there is decreased in head hence decrease in efficiency am i right?

[@kunalpanchal2328]

Hello sir, as explained in the earlier lectures that if the discharge valve is kept closed then there will be back pressure on impeller. So this back pressure will also lead to increase in power.

[@ChemicalMahi]

Dear Kunal surely....

[@kunalpanchal2328]

@@ChemicalMahi but for flow rate vs power, it is said that initially there will be less power consumption when discharge valve is closed then what about back pressure here? And as soon as the discharge valve is opened the power required to run the impeller will increase. And also in case of throttling chapter it was explained that due to back pressure the power required will be more and in case of closed discharge valve the impeller may get damage also.

[@ChemicalMahi]

Dear Kunal don't get confuse.Look at characteristic curve of Centrifugal pumps u can easily see that when u increase flow then power consumption increase and is minimum when valve is closed. For your second query Look at the power formula Power depends directly on flow rate and Inversely on Efficiency also by throttling the valve for a particular pump u are decreasing it's efficiency so power consumption increase than the case when it is fully open.

[@syedzainAdil]

Sir ye baat abb bhi clear nhi hui efficieny ka kia matlb hai yani wo permanent hi kharrab ho jayega? Uski efficiency hi kamm ho jaye gi chahy hum uska discharge valve full open kardain? Sir ye point clear kardain plzz

[@syedzainAdil]

Or agar hum valve throttle karty hain yani uska hum flowrate kamm karty hain ya hum discharge valve full closed karty hain to us surat main power consumption zyada kion nahi lag rahi jabky back pressure to is main bhi hai

[@nikhilmene7442]

Nice....Can you share lecture on head calculations

[@ChemicalMahi]

Next to Next lecture will be on the same .........

[@ChemicalMahi]

Dear,Eighth lecture was on head calculation approach and Ninth will discuss example for the same

[@marutishinora3886]

In lecture 4 you have said that Throttling of Valve will increas power consumption And here you are saying that Throttling of Valve will reduce power consumption as flow decrease by throttling Please reply

[@souravkumar2522]

How to calculate the power requirement (KW/hp) of motor for pump drive ??plz share it

[@ChemicalMahi]

Dear Sourav Kindly see this lecture attached is link:-kzbin.info/www/bejne/mXWqdGmEpbKJorc

[@syedzainAdil]

Sir area kamm karny sy pressure kamm hota hai or velocity increase hoti hai to jabb hum pipe ko aagy sy band karty hain garden main pani dety huye yani hum uska area kamm karty hain to kia velocity or pressure dono increase ho jaty hain???

[@ChemicalMahi]

Dear Adil back pressure in hose increase as u close the outlet . Velocity will incraese.

[@anoopmishra1935]

Pls upload pdf link

[@chandrasekharmohanta6334]

Very confusing video

[@ChemicalMahi]

What is confusing

[@chandrasekharmohanta6334]

@@ChemicalMahisir please repet this lecture 🙏

[@ChemicalMahi]

Ok sure very soon. But u can tell me the query....

[@chandrasekharmohanta6334]

@@ChemicalMahi Sir SAIL OCTT trainee chemical posts preparation video please 🙏