Intro to Psychrometrics w/ Eugene Silberstein
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- เผยแพร่เมื่อ 2 ก.ค. 2024
- Eugene Silberstein, a co-author of Refrigeration and Air Conditioning Technology (RACT manual), joins the podcast to give us an intro to psychrometrics. Psychrometrics focuses on the properties of air and its contents, especially as they relate to human comfort.
To understand psychrometrics, we need to be able to quantify air: its weight, humidity, pressure, etc. We can do a better job as technicians if we figure out the air’s content and see how it relates to the CFM and overall unit performance. That way, we can have a more holistic view of HVAC performance instead of just focusing on adding or recovering refrigerant to improve performance.
The psychrometrics chart helps us understand the conditions of the air based on quantities like water vapor, dew point, and more. The chart may intimidate techs, but it contains a wealth of information that can help technicians understand the air and the customer’s comfort better.
Basic psychrometrics can also help us grasp why furnaces don’t actually dry out air; they pull the moisture out of the air and pull it back in, so the absolute humidity stays close to the same. However, we commonly add humidifiers because the relative humidity drops with the temperature rise.
Eugene and Bryan also discuss:
How air filters and blower motors interact with the air
Things that affect the weight of air per cubic foot
Humidifying air and its effect on the density of air
High-pressure air moving to an area of lower pressure
How latent heat works
Pressure and the atmosphere
Absolute vs. relative humidity
Learn about ESCO’s e-learning network at hvacr.elearn.network/ and "Psychrometrics Without Tears" at www.escogroup.org/training/ps.... ESCO also holds the HVAC Excellence Conference; learn more about that at www.escogroup.org/hvac/nhetc/....
Read all the tech tips, take the quizzes, and find our handy calculators at www.hvacrschool.com/.
Incredible video, tactfull, thoughtful and well explained as always..Great choice of topic
I just got into hvac and am obsessed. Something about understanding refrigeration, thermodynamics, and air conditioning in general lead me to believe there are secrets about physics and our reality waiting to be discovered. We’re on the cusp of an energy management breakthrough and it’s somehow tied to the art and science of hvac.
Silberstein was one of the best teachers I ever had in school.
I had the privilege of having Eugene Silberstein as my instructor. He is a well crafted well spoken person that not only opens your perspective of things you'd never think to question, he gets you interested in an industry that would appear mundane to the average person. I recommend everyone check out psychometrics without tears along with all his other material.
Finally thank you so much wish teachers talked like you. I'm not even a tech yet and everyone laughs when I talk like you. They just don't get it. Now I can show them
Son of a gun! That sponge example made it click finally! What I actually really appreciate is this guy’s understanding of how humans think!
Thanks!
I really needed this Bryan. Then you. I'm going to get his book on Kindle and try to devour it in the next couple days.
Thanks Bryan! I could listen to Eugene non stop. Love the analogies. He might have just dubbed "Hebrew HVAC". Thx for bringing him in.
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Love the content and all his books. Thanks for sharing your knowledge.
Please add episode numbers! I've loved your content forever but trying to listen on spotify and on my way to work.
Great explained. Thanks
man where was this video 7 years ago when i was studying refrigeration... lol thanks for the video!
incredible...
Was waiting for him to come on here! What’s up professor!
Good stuff guys good information thank you
Nice information Guys
The "Racked Manual" ? What's that? You called it THE BOOK FOR OUR INDUSTRY and then mentioned very little else about it. Could you provide a link to this resource?
Is there anyway someone could point me in the right direction of some books, training, etc. of air balancing on the industrial level? Please and thanks!
Thank you, love the explanations. 1 question regarding humidifier, when installing a furnace. I understand everything he said. But, why is it that you need a humidifier when installing a furnace vs baseboard heat where it's not needed as often? I was thinking it has to do with the the foced convection vs natural convection but it doesn't really work in my head. If I set the thermostat to 70° why would forced convection vs natural convection make a difference? Thank you Bryan I know you don't deal with this 😜 even though the weather was beautiful at the symposium, I still felt the humidity, I'm a new Yorker after all 🤣
Off the top of my head and not watching the video yet, I would say it may assume a natural draft gas heater where interior air is allowed to exit the building via the chimney to be replace by outdoor air which absorbs moisture from the home as its temperature is increased.
Electric heat or direct vent gas appliances do not exchange room air for outdoor air during their operation, theoretically maintaining moisture inside the structure.
@@gordonborsboom7460 but we see the same need for humidifiers with 90+% furnaces.
How much does the dust in the air weigh?
When I first saw sycs I was like nah. Now still nah but with a little sass.
Türkçe alt yazı neden yok ☹
Good video, good teacher, but am I really to believe he's had ENGINEERS say the air weighs nothing? If that's legit I'm stunned.