superb explanation till now I have searched more than 15 websites, 10 youtube channels, unacademy, McCabe smith and cengel also. But your explanation made the concept clear
@offtrail1062
5 жыл бұрын
Great! Very informative. Now clear the actual point of view of NPSH. Thanks a lot from Bangladesh.
@avskr-04
5 жыл бұрын
It is v²/2g in Bernoulli's equation.
@quicksilva184
5 жыл бұрын
Excellent explanation! This is very much appreciated.
@ichigokurosaki7699
Жыл бұрын
Short and simple yet efficient. Thank you.
@sohrabhossain6493
2 жыл бұрын
Great explanation. I have searched many videos and channels, but did not find such a lecture. Thanks bro
@ashu3517
4 жыл бұрын
Respected sir I think velocity head will be 2g in denominator 👍
@AnkitGupta-ck9po
3 жыл бұрын
Cavitation does not occur due to liquid to vapor formation. It happenes when pressure increases again and vapor again try to be in liquid phase. These liquid collapse and implode into the metal surface and cause the erode to the metal surface.
@devakshay8
5 жыл бұрын
why have you added v2/2g with the NPSH last formula after explaining it's justthe difference between suction pressure head and vapour pressure head. Didn't get you there. kindly respond
@bat_man1138
3 жыл бұрын
Same doubt if anyone know it please respond
@vaibhavverma6426
4 жыл бұрын
Very helpful video .....please make more conceptual videos like this . All doubts cleared thank you....
@Sumitkumar-bb8uh
4 жыл бұрын
Sir concept bht sahi. Clear ho gya.. really sir...no words for u... thanks a lot sir..
@CC-gv6us
3 жыл бұрын
I think the velocity head term in the final equation can be omitted because NPSH is determined, like you say, by the condition that point 2 is at vapor pressure so cavitation is about to occur. If cavitation is happening, v2 goes to 0.
@sumantrachat1969
2 жыл бұрын
Absolutely.
@manishkumar-gk3it
4 жыл бұрын
Sir kya bolun yr u r ossom in many ways sir God bless u sala aajtak mujhe SMjh nhi aya par today only because of u
@kameshnathan9095
7 ай бұрын
Clearly explained sirrr thank you ❤
@ShaifulislamMajumder
2 жыл бұрын
oh brother, you did really awsome thing!!
@samadmaniyar4322
5 жыл бұрын
Best explanation sir👌
@hashimnazir9221
5 жыл бұрын
Well explained in a simple manner.thank you.
@ranjithpn9261
Жыл бұрын
SHORT AND SIMPLE
@majedaljaber134
2 жыл бұрын
Many thanks for such an amazing clarification!
@dileeppaswan231
4 жыл бұрын
Once you have taken v^2/2g at suction then why you use again adding v^2/2g in PV/$g
@biswarupdas14
3 жыл бұрын
thanks for the video
@nilban372
3 жыл бұрын
Nicely explained Sir!! Kindly post a video solving a problem related to finding the size of prime mover of pump.
@Obama2024
3 жыл бұрын
Your explanation is incorrect. NPSH is defined as the Absolute STAGNATION Pressure head at the pump suction minus the absolute vapor pressure head. You are all over the place but it appears you are making the (unfortunate) common mistake of defining it as the absolute STATIC pressure head at the pump suction minus the absolute vapor pressure head. It is wrong in Mark's handbook (at least my edition) if that was your reference. I recommend going to the Pump's Handbook or any good undergraduate text for a correct understanding of NPSH. You can also call a pump manufacturer, they love to discuss this stuff.
@manishkumar-gk3it
4 жыл бұрын
U r great sir lots of love to u
@history-nature
4 жыл бұрын
Excellent. , knowledgeable
@bat_man1138
3 жыл бұрын
Why V^2/2g is added please explain any one it will be so kind of y please
@woodah08
4 жыл бұрын
Excellent explanation! THANK YOU!
@dalcap13
2 жыл бұрын
Good and clear explanation
@biggerboss6988
2 жыл бұрын
Xcellent
@toufikzisan1064
3 жыл бұрын
Excellent video sir.
@mahabubalam8496
2 жыл бұрын
Thanks a lot...💓
@Pradeepgk17
4 жыл бұрын
Wow nice explanation👏
@atishtambe5898
4 жыл бұрын
Very well explained!!
@ananthavishnumheman3067
Жыл бұрын
Thank you
@Rajeshroy-C
5 жыл бұрын
Good job ..love frm nepal...
@nayanmehta5061
5 жыл бұрын
V2÷2g not v2÷¶g
@nikilmahi6834
4 жыл бұрын
In final step he corrected bro
@raiannurislam
2 жыл бұрын
very nice explanation
@satayutravadi
5 жыл бұрын
You're all videos are very helpful if possible add the last topic which is remaining named as characteristics curves of it. Thanks a tonne of lot
@user-wb8gv7bd3f
Жыл бұрын
please explain for positive suction as you explained for negative suction
@eim-r8way322
Жыл бұрын
Thanxx
@abishekmurugesan335
3 жыл бұрын
Very well said
@suhukv
Жыл бұрын
vapor pressure at any given temperature is defined as the pressure exerted by the vapour in equilibrium with the liquid at that temperature ....then how it becomes the pressure at which liquid convert to water vapour..
@annappakrishnashet2364
3 жыл бұрын
Good explanation tq
@srinuk8636
3 жыл бұрын
Good explanation sir❤️❤️
@silambarasanp1555
3 жыл бұрын
Good explanation sir
@shivaniarts3435
Жыл бұрын
Sir.. In Bernoulli equation... It should be v² /2g
@Lahari5093
5 жыл бұрын
good explanation. good job
@aakashmohan5703
2 жыл бұрын
Clear explanation
@aslam1092
Жыл бұрын
Hello Sir, Do we need to add atmospheric pressure to the pressure in the manometer at the suction while considering NPSH?
@maheenshakil5828
2 жыл бұрын
Why do we add the velocity term in NPSH?
@rajprabhakar06
5 жыл бұрын
Hi Sir, could you explain the NPSH for Vertical Suspended Pumps (VS4/ VS5). NPSHA calculation and checking the vendor datasheet/GA from customer point of view.
@mechtrotip5034
4 жыл бұрын
Is too much npsh available good For e.g npsh required=10ft and npsh available=100ft Pls reply
@jramanji2072
5 жыл бұрын
Thank you sir for better explanation, what is the difference between limiting height of suction height and NPSH ??
@kirtanadhvaryu
4 жыл бұрын
Please can you explain with real life example means I have a pump delivering fluid at some rate. I want to understand how can we say that the pump is under cavitation or not. request to respond
@kunal-eq3bl
Жыл бұрын
💕💕💕💕
@sandeepfuleri_vlogs
3 жыл бұрын
If vapour pressure of particular liquid more than the suction head pressure then what will be done.
@abhishektiwari-nk1lp
5 жыл бұрын
Sir final eq me to v2^2 / 2g cancel ho ja ra h ...And final ek k ek step pahle v2^2 / 2g ko kyu add kiye wo samajh ni aaya ache se
@DipankarDeori
5 жыл бұрын
at the beginning, velocity of the liquid is termed as v2, later v2 is velocity of the impeller
@arunraj7816
5 жыл бұрын
Good explanation. Plz explain NPSH in steam turbines .😁
@simonjawhari
2 жыл бұрын
I have a sump that’s is above the pump existing NPH is 22 can I replace it with 18 ft?
@simonjawhari
2 жыл бұрын
NPSH
@naumanashraf8012
5 жыл бұрын
Plz do make videos on other subjects of Mechanical engineering too!!!
@chinnaappalanaidumalla7954
2 ай бұрын
What about positive section
@tejasmahajan6641
4 жыл бұрын
Thank you sir
@hussainshaheed4502
3 жыл бұрын
How you avoid the cavitation, by changing the static head or the pump location ?
@na1ab000
3 жыл бұрын
you cannot relocate pump when it is already installed. you can increase liquid level to increase NPSHa to avoid cavitation. when you are designing a pump for new plant then you have a choice to relocate pump to increase inlet head.
@kirankv47
4 жыл бұрын
Useful video. But made a mistake in the equation and corrected at the end. Should be more careful while writing equations.
@parthbhavsar1535
5 жыл бұрын
Why have you not considered z2 in final NPSH formula....? Why only velocity head ?
@ShaifulislamMajumder
2 жыл бұрын
z2 goes to Hs
@mukherjeejoy1747
2 жыл бұрын
It's V2/2g.
@rameezsharif9482
2 жыл бұрын
The term hs may varies with -ve or +ve sign?
@10ran
5 жыл бұрын
nice sir
@morshedulislam5639
3 жыл бұрын
In book static head is added in the formula.But you didn't add
@satyaranjansahoo1641
4 жыл бұрын
How to calculate NPSH, if sump level is above the impeller eye
@gcsindia528
3 жыл бұрын
How much is v2
@anubhavkumartiwary8417
4 жыл бұрын
Sir final value mein v2^2÷2g cut zaayegaa naa?
@anubhavkumartiwary8417
4 жыл бұрын
Reply sir?
@ramsubu6657
4 жыл бұрын
Hi, is this npsh r or npsh a
@ABHISHEKSINGH-gu7ij
4 жыл бұрын
Below
@prashantsolanki6879
5 жыл бұрын
sirji Bernoulli's equation to theek likho yr!
@josephff6893
2 жыл бұрын
V2/2g not row.g
@sanjugohil
4 жыл бұрын
Cavitation creates more problem for impeller than the suction pipe..there will be more wear and tear of impeller and more noise too .
@sajith303
3 жыл бұрын
V2/2G....THATS KINETIC HEAD
@anupmandal3939
11 ай бұрын
Impeller ko fig. Wrong hai
@theseedspeak
3 жыл бұрын
how to determine NPSH 3% or what we say NPSHR and what should be the NPSH margin ratio for pumps watch this kzitem.info/news/bejne/rZWhp6pmsKKEh20
@romanwest5764
11 ай бұрын
You are факing инdus
@samdgreat4792
3 жыл бұрын
Plz make videos only when you know the concept very well. Don't make it just for the sake of making. Complete wastage of time.
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