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Process with Pat
Denmark
Приєднався 24 бер 2021
Hi! Welcome to Process with Pat. I’m a passionate process engineer with industry experience in operational, service, design, and commissioning environments. This is where I share my practical experience and know-how. I want you to leave my channel more knowledgeable, confident, motivated and, most importantly, curious.
The goal is for you to leave thinking, “Oh! That’s why…”
Let’s Learn Together.
This is the place to come for perspective and to ask stupid questions. I am not perfect! I do not claim to be an expert and I continue to learn daily. I have made, and will continue to make mistakes. Point them out and let’s share the
knowledge.
Greater Than The Sum Of Our Parts.
Use what you learn here to make small, but continuous improvements. It’s easy to feel hopeless trying to solve global problems. Your job is not to solve the world’s problems - sort out your own plant and our combined efforts will turn into something huge.
The goal is for you to leave thinking, “Oh! That’s why…”
Let’s Learn Together.
This is the place to come for perspective and to ask stupid questions. I am not perfect! I do not claim to be an expert and I continue to learn daily. I have made, and will continue to make mistakes. Point them out and let’s share the
knowledge.
Greater Than The Sum Of Our Parts.
Use what you learn here to make small, but continuous improvements. It’s easy to feel hopeless trying to solve global problems. Your job is not to solve the world’s problems - sort out your own plant and our combined efforts will turn into something huge.
Normal cubic meters
A primer on using normal cubic meters in process engineering.
00:00 Liquids are great
01:12 Gases aren't
03:05 What is normal?
04:37 Pressure changes
06:18 Composition changes
08:04 Notation
Process with Pat is the place to come for perspective and to ask stupid questions. I want you to leave more knowledgeable, confident, motivated, and most importantly, curious. I also want to invigorate a field that seems tired and uninspiring, at least if you get your perspective from internet forums. These are not lectures. This is a place for you to leave thinking “Oh! That’s why...”
This channel is not only for chemical engineers - anyone who works with processes should be able to find something of value here.
#ProcessEngineering
#ChemicalEngineering
#ProcesswithPat
00:00 Liquids are great
01:12 Gases aren't
03:05 What is normal?
04:37 Pressure changes
06:18 Composition changes
08:04 Notation
Process with Pat is the place to come for perspective and to ask stupid questions. I want you to leave more knowledgeable, confident, motivated, and most importantly, curious. I also want to invigorate a field that seems tired and uninspiring, at least if you get your perspective from internet forums. These are not lectures. This is a place for you to leave thinking “Oh! That’s why...”
This channel is not only for chemical engineers - anyone who works with processes should be able to find something of value here.
#ProcessEngineering
#ChemicalEngineering
#ProcesswithPat
Переглядів: 11 265
Відео
Process temperature & thermocouples
Переглядів 2,6 тис.Рік тому
An idiot's guide and demo to how we commonly measure process temperatures in chemical engineering. 00:00 Leave my face alone 00:18 This is a thermcouple and my kitchen 01:20 Demo 05:40 Plotting our findings 06:04 ITS-90 06:44 Cold junction compensation ITS-90 (NIST): srdata.nist.gov/its90/main/ Process with Pat is the place to come for perspective and to ask stupid questions. I want you to leav...
What they won't teach you about chemical engineering
Переглядів 16 тис.Рік тому
I hope that this offers a sobering, uncensored, but hopeful view of the industry that young chemical engineers find themselves going into. 00:00 Your aspirations 02:02 Operations 03:07 Tech & licensing 05:12 EPC's 06:57 What to do with this information Music: Lemonseven by septahelix (c) copyright 2022 Licensed under a Creative Commons Attribution (3.0) license. dig.ccmixter.org/files/septaheli...
Think like a chemical engineer
Переглядів 7 тис.Рік тому
These are the principles I use in my day-to-day working as a chemical process engineer. 00:00 Intro 00:28 Principle 1 01:47 Principle 2 03:15 Principle 3 Process with Pat is the place to come for perspective and to ask stupid questions. I want you to leave more knowledgeable, confident, motivated, and most importantly, curious. I also want to invigorate a field that seems tired and uninspiring,...
System curves with recycle lines
Переглядів 6 тис.Рік тому
I remember learning about recycle lines in one of my process engineering courses, but it was primarily about mass & component mass balances. I also recall having to iterate to arrive at steady state. When someone asked me about system curves for systems with recycles (pressure drop in recycle lines), I had to do some thinking on how to go about generating one . This was the result. Link to the ...
Pressure drop (and system curves) for diverging branches
Переглядів 5 тис.2 роки тому
Last time I looked at fluid flow and pressure drop in parallel branches that split from a common point and then converge again. But what happens if the destinations of the branches are different so they never meet again? (*sniff sniff*) How do you generate a system curve for diverging branches? 00:00 Converging and diverging branches 01:14 Terminating each branch 04:50 Polynomial fitting & nega...
Pressure drop (and system curves) in parallel
Переглядів 13 тис.2 роки тому
Why do electrical engineers have nice equations for resistors in parallel, and we process engineers don't?! We have a look at why this is the case, and how it doesn't matter because we can use the same principle to analyse fluid flow through parallel branches. 00:00 Analogies between fluid flow & electrical current 02:29 Ohm's law makes things easy 03:48 The equation for resistors in parallel 0...
Boiling off all the alcohol
Переглядів 3 тис.2 роки тому
How many times have you heard that you "boil off all the alcohol" when you cook with it? Is it true? 00:00 "Boiling off the alcohol" 01:11 Boiling mixtures vs. pure substances 01:45 Water ethanol VLE 02:50 ABV vs. mol% 03:23 Rayleigh equation 05:38 What is "alcohol-free"? 06:12 So how much do you need to boil off? 06:50 Boiling vodka & drinking it Calculations (maths trigger warning; requires u...
Boiling Water vs. Vodka
Переглядів 2,3 тис.2 роки тому
I've been thinking a lot about the claim that when you cook with alcohol the ethanol boils off. Before starting to tackle that question one needs to understand the difference between boiling a pure substance like ethanol or water versus boiling a mixture of the two. 00:00 Intro 01:03 Boiling pure water 01:44 Boiling vodka 02:30 Bubble points 04:48 T-xy diagrams 07:03 Raoult's l aw & ideal mixtu...
Alcohol by Volume Explained
Переглядів 3,6 тис.2 роки тому
If you buy a beer that is 5% ABV that does NOT mean there are 5 mL of ethanol to ever 95 mL of water. In this video we look at why that is the case and how we convert Alcohol By Volume to a mass and mole fraction. I also think I've spotted some mistakes in Perry's Chemical Engineers' Handbook, if I am to be so bold...! 00:00 I hate volume 00:35 Mixing water and ethanol demo 02:05 Volume fractio...
Increasing pump suction pressure... What happens to the discharge pressure?
Переглядів 41 тис.2 роки тому
Simple pump question... If I have a pump with 1 bar suction pressure, and 2 bar discharge pressure, what is the discharge pressure if I increase the suction pressure by half a bar? 00:00 The centrifugal pump 00:50 The test setup 02:50 Right and wrong ways to start a pump 05:30 Increasing suction pressure 07:55 How to think about pump pressures Process with Pat is the place to come for perspecti...
Does Altitude Affect Pressure Gauge Readings?
Переглядів 3 тис.2 роки тому
Pressure gauges measure pressure relative to atmospheric pressure... So what happens when you move a gauge to a different altitude with a different atmospheric pressure? 00:00 Going on holiday 01:22 Mean sea level pressure 02:30 Bourdon gauges 07:52 Vacuum gauges 14:13 Conclusion Process with Pat is the place to come for perspective and to ask stupid questions. I want you to leave more knowledg...
Boiling water with ice
Переглядів 10 тис.2 роки тому
Despite the clickbait title of every video that shows this trick, it's still cool to see, and very useful to understand if you work with steam. 00:00 The experiment 02:38 What is happening in the jar 04:24 What do you call water at 101 °C and 1 atm? 05:54 Trying with a pressure gauge 07:06 Constant volume & density on a p-H diagram Process with Pat is the place to come for perspective and to as...
Vapour Pressure Crash Course
Переглядів 3 тис.2 роки тому
To know why things evaporate and why things boil (as well as what the difference is) you need to understand vapour pressure. 00:00 Daily photos of liquids 01:16 Liquids can evaporate below their boiling point 02:37 Measuring vapour pressure 03:58 Antoine equation 04:41 Boiling 06:34 Mixtures Process with Pat is the place to come for perspective and to ask stupid questions. I want you to leave m...
Wet bulb temperature - why & when is it used?
Переглядів 74 тис.2 роки тому
Wet bulb temperature - why & when is it used?
What does a Chem. Eng. degree not prepare you for?
Переглядів 3,1 тис.2 роки тому
What does a Chem. Eng. degree not prepare you for?
Can we use CO₂ in our fridges & AC's?
Переглядів 4,8 тис.2 роки тому
Can we use CO₂ in our fridges & AC's?
What's the pressure in a CO₂ cartridge?
Переглядів 18 тис.2 роки тому
What's the pressure in a CO₂ cartridge?
How I Approach Understanding Thermodynamics
Переглядів 7 тис.2 роки тому
How I Approach Understanding Thermodynamics
Piping & Instrumentation Diagram from scratch
Переглядів 50 тис.2 роки тому
Piping & Instrumentation Diagram from scratch
Operations vs. Design Work in Chemical Engineering
Переглядів 10 тис.3 роки тому
Operations vs. Design Work in Chemical Engineering
Equal % valves - Part 2 - Why do we use them?
Переглядів 10 тис.3 роки тому
Equal % valves - Part 2 - Why do we use them?
Equal % valves - Part 1 - What is the equation?
Переглядів 15 тис.3 роки тому
Equal % valves - Part 1 - What is the equation?
Bernoulli, beer jugs & draining tanks
Переглядів 7 тис.3 роки тому
Bernoulli, beer jugs & draining tanks
Why is Chem. Eng. difficult & should one do Masters/PhD? | ChemEng Convos #1 | Jamie Cripwell
Переглядів 1,3 тис.3 роки тому
Why is Chem. Eng. difficult & should one do Masters/PhD? | ChemEng Convos #1 | Jamie Cripwell
Stop looking at pressure drop like this
Переглядів 2,9 тис.3 роки тому
Stop looking at pressure drop like this
Liquid line sizing & pumping downhill
Переглядів 8 тис.3 роки тому
Liquid line sizing & pumping downhill
Want to understand pumps? Don't start with pump curves.
Переглядів 23 тис.3 роки тому
Want to understand pumps? Don't start with pump curves.
You have an excellent ability to take difficult topics and create a simple example to explain it.
I think this video is one of the best video so far I have. Thank you for making video
Best part is the thermocouple demonstration ❤️❤️
This is perfect. I have a garden pepper which has a wonderful flavor. Vodka will remove the flavor from the fiber of the plant. Hopefully; This method will remove the vodka, for the most part, and I can add that flavor to my recipes. Plus storage will be easier throughout the year. If all goes well and without any " Murphy''s Rule ", in an ice cube form. Thank you for your video and explanation.
Discovered your channel nearly. Awesome content and quality. Please do more videos.
Amazing! Thanks for very useful information.
Excellent, excellent video! 🤙
Kudos to you, this was the only video that explained it simply enough for me to understand!!!
A super clear video explaining the concepts and application of wet bulb temperature. Much appreciated!
what a video! It's definitely something extremely useful to a beginner. Many thanks for your effort in making such a great video.
What's the duty cycle of a dehumidifier? Usually it's not perfectly efficient, so the temperature goes up a bit while the absolute humidity goes down
So is a swamp cooler essentially moving left along a line of constant enthalpy?
Cool I finally understood this wet bulb nonsense lol
amazing video for an HVAC engineer as well
Great 👍🏻 thanks. Could you please prepare a similar video for air as a fluid and required blower head
Been trying my best to flip the axis on Google Docs, but for the love of God , I can't figure out how to do it. Can you please point me to the right direction.
Hi Pat, in the formula of Cv value, where the number 27,3 comes?
very truly helpful, thanks
Thanks for the American translation - I almost passed out converting Celcius in my head
Hey pat the way you simplify and explain things is just so helpful ...why did you stop making these videos man, we want our passionate process Engineer back man
Thank you for addressing very basic but highly confusing problem. 👏
What is the meaning of the ( reactor) ? Anyone can help, please. is it a component such as valves, or is it a pressure generator?
Great video.. So here is a question. Using variable speed centrifugal pumps for swimming pools. When the pump is above the pool level (suction lift no gravity feed) sometimes pumps loose prime. Will installing smaller diameter pipes increase pressure to the pump head preventing loss of prime. So 50mm pipes to pump head 63mm discharge?
Show me where on earth 10 degrees wet bulb temp is , in your words , "a scorching hot day". Go on . WHERE.
Midwest and Bible Belt, Dallas Texas had Wet-built effect a few days ago.
Great explanation!
They just look big and scary, but they are actually good girls.
Hi i am i bit confuse .. so you have 2 cylinders high pressure and Low pressurecand in middle you have a Pressure regulator .. so when i open the Pressure regulator what will happen if i open the Pressure regulator??? Cna help me what isbthe answer thanks
No such thing as suction pressure, suction causes vacuum
One of the best examples I’ve found so far thanks.
Ye video Hindi me chahiye
Come back with a new video! We miss you! ❤
Every prospective engineer should watch this. It is insight that applies to every field of us problem solvers.
Hey Pat do you have any suggestions on a book that you could recommend for piping systems and pumps
Excellent explanation For me the system curve can be defined as a function of the recycle flow, the pruduct flow or the pump flow. It just depens on what flow is important in the process. But maybe the system curve definition is based on the pump flow because the definition is maybe based on a simple example without recycle line. Thank you Pat !
6:37, I pause the video at a bad instant (Step 2: Get the f...) and it sounded like you were about to say, "Step 2: Get the duck 0ut" 😂
Very well explained. This was the first time I had this explained as you did. I will have to watch again, but it is helping me for sure. Peaceful days to you
the stock footage with hard hats in the office... lmao
Great video
fire background setup man, fr
Excellent video , continue making such cool, scientific stuff.
I'm a retired research chemist of 35 years. I found that I should have gone unto Ch.E because I was really interested in the process more than the chemistry.
Hi if you have worked in the usa, How is the dow chemical company in the usa? Does it a good company?
I worked with Ph.D level engineers. Less than Ph.D is just a technician in their mind.
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.
Hands down the best video explaining the Psychrometric chart. Great job!
We need some more videos, these are great!