Cavitation in Centrifugal pump, NPSH available, NPSH required, Calculation of NPSH, NPSH3

This video deals with basics concept behind Net positive suction head available & required like Vapour pressure, Bernoulli's principle, Cavitation, NPSH3 concept, NPSHr concept, NPSH available calculation.
#GATE #GATE2023 #CHEMICALENGINEERING #PROCESSENGINEERING #NPSH #JOBINTERVIEWQUESTIONS

[@yashgoel25]

Quite elaborative and neatly explained Sir. These are some of the most important concepts which are asked in Process Engineering Job Interviews and you made them look so easy!

[@chintanconcept]

Thanks Yash !!
Good to hear from you 👍🏻👍🏻

[@amartyasingh2134]

This is best till date.

[@chintanconcept]

Thanks

[@mayukhchakroborty2985]

The way you were described it was just awesome.

[@chintanconcept]

Glad you think so!

[@tusharkdalbehera313]

watched many videos but this one is one of the clearly explained and easy to understand

[@amanjit.8885]

Amazing video sir there is no any comparison with other sir in this UA-cam market 🎉🎉

[@YashPatel-uq3xh]

Very Understandable & Informative

[@SachinPrajapati-pu2iy]

One of the best teaching skills you have sir🫡

[@Sqb1998]

Excellent lecture bro...
Pls keep it up

[@kumararaja4330]

Hello sir in two cases why you added friction losses when pump above water levels and you subtracted friction losses pump below the water level reason behind this

[@D_RahulKumar]

Sir NPSH required kaise leta hai manufacturer samjh nhi aya baaki puri video maine baar baar dekha yaad ho gya pura concept 👍

[@chintanconcept]

Thanks !!
NPSH r (Calculated by pump manufacturer)
They continuously reducing the pressure of the resource tank and calculate NPSH, Once total dynamic head (H = hd -hs) reduces to 3%, That value to be considered as NPSH r

[@kishanvishwakarma5160]

Great lecture sir 🎉

[@chintanconcept]

Keep watching

[@janhavichavhan4131]

Thank you sir it helps me

[@chintanconcept]

Most welcome

[@dibyaranjanojha5757]

Awesome

[@samirjariwala3437]

Really connected with concept 🎉

[@chintanconcept]

Thanks Sir

[@Eagle_1174]

Je baat....

[@AJ-et3vf]

Great video sir. Thank you!

[@chintanconcept]

Glad it was helpful!

[@md.naeemulhasannaeem9870]

Thanks ❤

[@chintanconcept]

You're welcome 😊

[@jeetsingh-bg7fz]

NICE ATTEMPT

[@ravitejapantla8022]

👍

[@DAIVIKSANJAYPATEL]

Great Video. 👍🏻👍🏻

[@chintanconcept]

Thanks for the visit

[@the_francis.7]

Bro the direction of impeller vanes are wrong ...in this case water will churn inside the casing ... centrifugal force act nahi karega...baki explanation were to the point 🙌👌

[@deobiloilchil]

Do you have full English script? It woud be very beneficial

[@chintanconcept]

not yet

[@asnalishamsho2343]

Very good explanation Sir. But i have a question, if put a pressure gauge on the suction side of the pump ( near the pump). Is it correct to say NPSHA is equal to pressure reading of the gauge minus vapor pressure of the liquid?
Thank you again

[@chintanconcept]

Yes that is NPSH, Exactly.

[@asnalishamsho2343]

@@chintanconcept thank you very much

[@msamirul1]

You are confused between when to prssure increase or decrease w.r.t Area. As per bernaulli principles as area increase pressure will increase and vice versa

[@nishantpatel640]

kindly recheck 2.48

[@chintanconcept]

Have you checked at 2.48 ???

[@vinayaksonawanexyz6555]

Thanks sir.👍

[@chintanconcept]

Most welcome

[@fajrulihsan1849]

Full english please

[@imtiyaz95]

👍👍👍

[@pappalasunilkumar4805]

Sir pressure=force/area then how will be pressure decreasing along with area.

[@chintanconcept]

Hi
It’s important to clarify that P= F/A represents how pressure is calculated, not how it changes within a fluid system.
Here's how increasing pipe size can impact pressure within a fluid system:
1. Velocity: When you increase the size of a pipe while keeping the flow rate constant, the fluid velocity decreases. According to Bernoulli's principle, as the fluid velocity decreases, the pressure increases. So, in a larger pipe, the fluid exerts a higher pressure due to this reduction in velocity.
2. Volume: A larger pipe can hold more fluid volume, which might affect pressure if there are changes in flow rate or demand. However, the pressure exerted by the fluid itself is not directly related to the pipe size but rather to factors like fluid density, velocity, and external forces acting on the fluid.

[@vinayakhuracan5182]

That is stagnation pressure

[@kartikeyasharma6769]

sir, pressure balance mai velocity head ka term kyu nhi aaya

[@chintanconcept]

I really appreciate your question
Velocity = flowrate/area
Usually in static pressure head calculation & NPSH calculation we ignore the velocity head term which indirectly affects total energy(also constant flowrate) is there.
Actually NPSH = (Ps-Pv)/p*g - V2/2g
but doesn’t affect on total values.(hardly in 0.0…)
Hope it is clear

[@Yashpatel-iq6hd]

Nicee✨

[@chintanconcept]

Thanks 🔥

[@akshaysinhmagodara8204]

👏👏

[@mayanktiwari14_]

Kya baat 😂

[@vijaykumarbiradar9537]

1:19

[@chintanconcept]

what ??