For anyone having issues with this one, do this. Just watch it through once and write down everything a long with him. Then just attempt to derive that first equation by yourself without looking and only refer back to your notes if totally stuck. Then watch it again and talk along as if you are discussing it with him and look at your notes. Lastly, take a short break and then come back and watch it at double speed and comment along with it. You will be amazed at how much you have learned in the short time. The rest will be cake.
Nice and a wonderful explanation..... However, I went through the calculations but I did not understand how you calculated the area of the diameters of the pipe and the venturi. Is there any explanation to give to that please
Could you tell me, is there a ratio for the most efficient venturi of how much you have flowing in to how much is added via the venturi? So if you have a constant flow rate and constant pressure in say of 10bar air passing through, how much in comparison could be drawn through?
i.imagine it as a baloon when we pressurize it and rap the outlet but only let a tiny bit of air to escape ,the speed of the gas when its outputed to the other side ,its velocity dependent on the source pressure of the cylinder ,or storage tank
Good video. I'm confused why the p2 would be less than p1 though. The level of the liquid in the 2nd tube is lower so how come it hasn't got more pressure?
The pressure of a venturi meter is always lowest at the throat, where the flow speed is the greatest. The level of the liquid is lower because there is less pressure pushing it up.
what if the water level at point B was higher than A, wouldnt then p1-p2 be negative because p2 would be larger than p1, would then delta p be negative or? thats the only part that confuses me
I did extremely well in college algebra, but these are some intimidating equations and calculations. Yikes! I have not done any algebra in nearly a decade and a half. If I continue with my next college degree I will be required to take chemistry and I am so out of practice when it comes to solving algebraic equations.
That's really the only thing that I could pick on (not here to pick on this presentation) but rho should be written as a Greek rho character, not as a 'p' like he did.
the speed must be slower in yhe bigger portion of the pipe but when it reaches the narrow spot and gets out to another place similar to the first pipe or doesnt matter but it has to go though this process to drop its tempreature ,its all about dropping the temp ,by jettjng it from a narrow jet ,but the velicity of the gas beibg sprayed or jetted ,is relative to the inside pressure of a closed system ,to open system ,or atmospheric pressure,this is applied to steady cold ,the colder the better ,the whole refriregeration idea is about getting the heat out of the system ,or place ,it has to do with pressure of vourse but the primary work is making a way by means of maniplulatig pipe diametrs and leghtes ,if any source of heat is intruduced ti an AC OR REFRIGERATION system the balance will be lost ,the normal working way of these systems ,keep heat away .
7:29 when uou've calculated the v2 you take the area as 10cm^2 and 5cm^2 then you've come up with 4m/s? EDITED: oh i get it you've just cancel the cm^2 unit😂
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Your voice is magical 😅😅😅😅...i wish all lectures were this calm..and the content is amazing, everyone gather here😊😊😊
For anyone having issues with this one, do this. Just watch it through once and write down everything a long with him. Then just attempt to derive that first equation by yourself without looking and only refer back to your notes if totally stuck.
Then watch it again and talk along as if you are discussing it with him and look at your notes. Lastly, take a short break and then come back and watch it at double speed and comment along with it. You will be amazed at how much you have learned in the short time.
The rest will be cake.
THNKS IM USING A SIMILAR METHOD WITH DIFFRENT SUBJECTS AND IT WORKS AMAZINGLY
waoh i really enjoy how you explain things unlike my fluid lecturer he makes me want to run
Thank you so much. Will it be possible to see one with head losses calculations please?
Keep it up..the moment I watch..I do not need a tutor cuz this online explanation is much better..nice.imparting.
Thank you so much from france i didnt found a video about venturi in french u help me alots thx u
Love this. Lost me right at the end.
I'm applying this to a social formula. Thank you.
i almost do a dark spell to my lecturer until i found your video.. thanks so much
wtf
you're a wealth of knowledge
Matur nuwun gih, mas🙏🏻🙏🏻
This helps a lot! Thank you.
Thank you so much. keep make the lesson video, it's very help me axe final exam
You. Are my hero. For real.
Hugs from India 💜
Thanks a lot....got a lot og info. Important for my JEE
how on earth did 1/2 minus 1/2 became 1? , I can't hear the video clearly , you said if we factor 1/2 rho v1 squared you have 1? (4:27)
Relatives velocity in space formula is like relatives of venturi effects formula 🥂
Nice and a wonderful explanation..... However, I went through the calculations but I did not understand how you calculated the area of the diameters of the pipe and the venturi. Is there any explanation to give to that please
It's given
This channel is a boon for JEE aspirants in India like me who cannot understand concepts from books.
When you will finally put your mic to max?
great explanation, really helped me !
I am hesitant about calling P1-P2 Delta P, because change is always final minus initial
I guess you could use the absolute value of it ,then to make things simpler for you.
Not always. In this case, it will actually be an indicator of flow direction if that was not already known.
Right!
Nice presentation
Could you tell me, is there a ratio for the most efficient venturi of how much you have flowing in to how much is added via the venturi?
So if you have a constant flow rate and constant pressure in say of 10bar air passing through, how much in comparison could be drawn through?
Could you induce as much as say 1/2 the constant volume in through the venturi?
thanku so much it was so helpful :)
Thanks Sir!!!
Why is the pressure at B smaller? Wouldn't it be greater due to having a smaller crossectional area at point B?
i.imagine it as a baloon when we pressurize it and rap the outlet but only let a tiny bit of air to escape ,the speed of the gas when its outputed to the other side ,its velocity dependent on the source pressure of the cylinder ,or storage tank
Good video. I'm confused why the p2 would be less than p1 though. The level of the liquid in the 2nd tube is lower so how come it hasn't got more pressure?
The pressure of a venturi meter is always lowest at the throat, where the flow speed is the greatest. The level of the liquid is lower because there is less pressure pushing it up.
thnaks lot
if there is no difference head ( i mean if the 61.2 cm is doesn't there), how to calculate V1 ? if h be equal to zero, what should i do ?
what if the water level at point B was higher than A, wouldnt then p1-p2 be negative because p2 would be larger than p1, would then delta p be negative or? thats the only part that confuses me
I did extremely well in college algebra, but these are some intimidating equations and calculations. Yikes! I have not done any algebra in nearly a decade and a half. If I continue with my next college degree I will be required to take chemistry and I am so out of practice when it comes to solving algebraic equations.
Thank you so much
I thought the video was about a problem (a flaw) in the Venturi metering system. The title of the video was totally misunderstood by me
thank u so much
Question how to find Z1-Z2 ? Explain please
what would happen to the pipe if the speed at point B surpasses the max speed(with max speed being the speed that makes H2=0 )
Thanks 😊
Thanks
At 8:36, is that supposed to be a "p" or a row = 1000? i am confused.
rho
Im thinking about that too
where did that come from
@@markalbaytar rho is the density of water at 1000kg/m^3
That's really the only thing that I could pick on (not here to pick on this presentation) but rho should be written as a Greek rho character, not as a 'p' like he did.
Is the velocity V2 the same as the velocity at point c?
where did that 1000 came from sir? I'm so confused
rho=1000?
density of fluid in the venturi meter on this case he uses water
Yes
the speed must be slower in yhe bigger portion of the pipe but when it reaches the narrow spot and gets out to another place similar to the first pipe or doesnt matter but it has to go though this process to drop its tempreature ,its all about dropping the temp ,by jettjng it from a narrow jet ,but the velicity of the gas beibg sprayed or jetted ,is relative to the inside pressure of a closed system ,to open system ,or atmospheric pressure,this is applied to steady cold ,the colder the better ,the whole refriregeration idea is about getting the heat out of the system ,or place ,it has to do with pressure of vourse but the primary work is making a way by means of maniplulatig pipe diametrs and leghtes ,if any source of heat is intruduced ti an AC OR REFRIGERATION system the balance will be lost ,the normal working way of these systems ,keep heat away .
how does the increase the venturi effect?
why is change in pressure p1-p2 rather than p2-p1
If you did not cancel the rho*g*h terms and kept h1 and h2 , and eventually h = h2 - h1, it would be much easier to understand
I still don’t understand how you changed the pressure of the whole system, and equated it to pgh.
The fluid has a certain pressure at the 2 points, P1=ρgh1 P2=ρgh2 dP=ρg(h1-h2) => dP=ρgdh
Nice
U didn't change the areas from cm to m when working...check it out
How do you find the height different in the water tubes
It is given
What about V2?
My lecturer use different formula ! What's going on
Isn't that flow instead of velocity
you sound exactly like mark wahlberg
7:29 when uou've calculated the v2 you take the area as 10cm^2 and 5cm^2 then you've come up with 4m/s?
EDITED:
oh i get it you've just cancel the cm^2 unit😂
hi, can you speak louder, cause my computer speaker has reached 100 and is still very soft.
So, where are the "problems"?
Thanks you so much