Normal cubic meters

[@ChemEngWeekly]

A very interesting and clearly explained discussion about normal cubic meters! Great work Pat 👏

[@alejandrogomezbeltran8367]

Spent a week figuring out this at my last job, months ago. Just found out your video today, how hilarius? God job mate, liked the video as well as your channel.

[@rx5241]

Hi Pat. Your videos are really helpful in getting me insights as a Process Engineer. Thanks a lot man. Expecting many more videos to come from you

[@manikandansampath2903]

Nice topic pat. Always nees to be extra careful with units while working with gases. In general we check with mass flow and operating conditions on datasheets to be safe.

[@hanasamayaabascalalonso7816]

Are you gonna continue with these videos? They are so cool and interesting and you explain the topics really well. It would be a shame if you don't continue bc there are not many chemical engineering channels that are this entertaining, interesting and informative

[@ProcesswithPat]

Promise I will! I’m just really overloaded at work, but it’s definitely something I miss and want to continue doing. I really appreciate the comment.

[@ai4146]

I agree! I've recently started a new role as a process engineer and I've found your videos extremely helpful so thank you! You have a talent for simplifying complex topics :)

[@NikolayBychkovRus]

​@@ProcesswithPat+1 from my side. I have already watched all your videos, they are brilliant!

[@Bruh-vp6qf]

Hence why I'd almost always convert to mass or molar flow and convert to volume back whenever necessary

[@wayneyadams]

In Chemistry we used 273 kelvin (0 degrees Celsius) at 1.0 atm for STP. We also used 1.0 mole of gas had a volume of 22.4 liters at STP. This is what we used in PV = nRT to get the value of R. These are nice units to use because of the ease of remembering the ones for P and n, and 22.4 is also easy to remember.

[@kmh6578]

Plz keep these videos coming pat

[@brendan714]

This is a great vid, I learned a lot. And thank you for telling me that "standard" conditions are up for debate depending on which reference you take, that always confused me!

[@cameelbaichan6653]

Lovely explanation. Clear and concise

[@habsfan12325]

Great explanation!

[@envitech02]

Wow!!! Like you this has bothered me no end for the past few decades. Nm3 is Newton meter cubed. That's for sure. In our statute books it's also listed as Nm3. I agree that this parameter should be changed to Vol(n). After all, if there is a Nm3, would there be a Nm (Normal meter) or NW (Normal Watt) or Nkg? That's stupid!! And maddening!! Also many decades ago before the advent of internet I found out that standard temperature is 21.1 deg C. Can't remember where. But there there are different standards, 25, 20, 15, take your pick. Its mind bogging!!

[@bogywankenobi3959]

Model this as an electrical circuit and the answers fall right out. This is because, as an electrical circuit, any difference in pressures (or voltages) between two points in a flow path DEMANDS that there be a resistance (or flow restriction) between the two points. If there is no difference in pressure (voltage) between two points an infinite flow (current) will result. Since this doesn't happen in real life you have to consider the pipe as having some resistance. And since it will not usually be enough resistance, an external resistance, or valve, needs to be added. If you need to drop 8 bar in the "B" flow then the valve could be replaced with a check device (spring and ball check valve that opens at 8 bar) that drops 8 bar across it when a fluid is flowing through it. This will of course release heat at the check valve or regulator. It also points out that you were really asking the wrong question to begin with. The right question was "How do I get the flows I want given the initial conditions."

[@deltarampock5978]

Appreciate so much about the Explanation Mr. Pat. This is my first time studying compressor and i have trouble understanding Normal Cubic meter, i thought it was Newton Cubic meter.

[@ProcesswithPat]

Can’t blame you, right? Sadly, I don’t know if there is a work-around to avoid the confusion!

[@tiaan8551]

Lmao I'm studying instrumentation, and I see on all the control displays at the plant for flow they use nm3/h I also thought it was newton XD

[@MrSuprateek]

@@ProcesswithPat hi love your videos. Could you make a video clearing the difference between static pressure and hydrostatic pressure in bernoulli's equation? How are they even different from each other? I have found various answers on google but none of them cleared my doubt.

[@Sgrunterundt]

I was just about to comment that I can't help reading it as Newton cubic meters, but then the video got to that point.

[@itonner231]

Nice video! The discussion of average molecular weight makes things unnecessarily confusing in my view. Standard volumes are equivalent to molar quantities. The gases molecular weight is irrelevant.

[@ishandave9584]

But why do we use Nm3/hr afterall. Why dont we just use kg/hr instead. Is there any application where Nm3/hr is better to use? Nm3/hr neither gives mass flow nor volume flow. It gives some imaginary volume flow that would have been there, the conditions been 1atm and 0degC.

[@mphozatebza]

That's what has been bugging me all along.

[@rafapolepszyc1907]

Come on Pat! Everyone is waiting for the next movie. It's been almost a year!

[@vinsensiusdimas2001]

Hey Pat! By any chance do you have a discord server to discuss about chemical engineering topics and stuffs?

[@MalikZahid-ie7fu]

Sir whyno more vedios.?😊

[@user-xu9bn6tv7f]

Hi pat, there is a Korean youtuber working as a nuclear confusion design engeer. His channel name is Nixmars. Just want to share with you in case you are interested.

[@WRoach6]

Quality of your videos is excellent. Titles and thumbnails don't sell the content well though. Play around with those and I'm sure you could grow your subscribers

[@griphite]

Your videos are good enough but requesting you not to put music in the background as it's disturbing and not letting me concentrate on the content. Good luck and keep doing good things up

[@davidcora2751]

Hydrogen? Bullshit!

[@arjunbabu323]

Linkedin ID pls..

[@ProcesswithPat]

In the channel banner.