Federal Security Agency U.S. Office of Education Division of Visual Aids Principles of Refrigeration AVA12779VNB1 The principles of refrigeration explained.
Old School instrustion is the best because it was done at a time when humans still had the ability to communicate effectively without bouncing all over the place. This is a good example of a clear and concise explanation.
This video makes me understand the whole process and it gives me many answers about questions that I did not ask while in class for my HVAC training class (Refrigeration Cycle).
Everyone's saying how much better this video is than other ones they've seen but I see many things here that aren't so great. It's better than nothing but no where near as good as it could be. I give the general priciples section a D, the section on compression a B, and the section on absorption a D.
I am a young HVAC design engineer for building heating and coolings systems and I always wanted to profound understanding of theory which will aide in my practical work. This is better than any video out there
I'll buy that, but why are there so many comments praising this to the sky? I rarely criticize videos, after all this stuff is FREE! In this instance, I felt the need to bring a little reality to all the glowing praise so others might get the idea that this isn't really the best video ever on the subject.
this video provides a basic understanding of refrigeration/ heat transfer. The newer computer generated video is much like this one but taking account more components and how the heat is transferred from a product / food via fans
Great video especially the part about latent and sensible heat. Interesting that in melting and boiling temperature remains constant even though heat is flowing through. Crazy lingo. Its like the guy who discovered it wanted to be the only guy to understand it. Like "latent heat of fusion" and latent heat of vaporization". How much sensible heat must be applied in BTU to reach the latent heat of vaporization? Got to be easier language. Also I like how the government was involved in its cr
To all the HVAC technicians you are responsible to the Ozone depletion. Please do not use a CFC refrigerant like R-11, R-12 R-13, R-113, R-114, R-500, R-502, R-503. Lest save our Ozone Layer.
I am a student at Dunwoody College. I want to figure out a way to build a mini fridge for my welding project. The project is due at the end of the semester. Plus I want to store my beer..........
No sir, the irresponsible unconcerned corporations (Honeywell, 3M, Dupont, etc) are responsible. They made refrigeration so necessary in our society that we cannot eliminate it. There are bad techs that exacerbate this problem by improper procedures. Well trained concerned technicians are only doing their job by keeping these machines in working order. We do our best to convince equipment owners to upgrade old inefficent equipment using high-ODP refrigerants but this is not always possible.
So you can throw around numbers and words all you want but, don't step on my toes. I'm just making a living working on what I consider to be a necessary evil. I do everything I can to minimize refrigerant escaping to the atmosphere. I recover the gas and use low loss fittings; so I am doing everything in my power to "save the earth". But, make sure you blame the evil greedy corporations that started all this; not the little guy just trying to survive in this dog-eat-dog world...
i have dought while deschrge from compressor refrgrnt is converted into liquid and dis liquid absorbs heat from things wat v r kept in an refrigerator and after dat dis refreigernt is converted to gas state befire entring to suction of compressor dought is dat if der is nothing in refrigerator i,e nothing to cool den how refreigernt change its stae from liquid to gas ??
shabbir shaikh Because as the refrigerant enters the evaporator tubes (the ones inside the walls of the unit) its pressure drops. Just like placing water in a vacuum, it boils even though it's at room temperature. Also, the inside of the box is never quite as cold as the refrigerant and the insulation isn't perfect so some heat will always enter the unit, even with the door shut all the the time.
On spot with reply. So to answer his concern if we had this situation, refrigerate would not change state therefore liquid refrigerate would flood the compressor and damage the valves. The compressor only pumps gas not liquid.
ED parkour Probably where They (hear that ominous music??) will store Patriotic Body Parts after they kill Good, Honest Patriots in NWO FEMA Death Camps. EDIT: After which they'll be ground up and *eaten* by Atheists and the Bilderbergers.
Old School instrustion is the best because it was done at a time when humans still had the ability to communicate effectively without bouncing all over the place. This is a good example of a clear and concise explanation.
These old instructional videos are gold.
This video makes me understand the whole process and it gives me many answers about questions that I did not ask while in class for my HVAC training class (Refrigeration Cycle).
Everyone's saying how much better this video is than other ones they've seen but I see many things here that aren't so great. It's better than nothing but no where near as good as it could be. I give the general priciples section a D, the section on compression a B, and the section on absorption a D.
I am a young HVAC design engineer for building heating and coolings systems and I always wanted to profound understanding of theory which will aide in my practical work. This is better than any video out there
These ancient videos are still as relevant now as when they were made. The basic fundamentals haven’t changed.
Finally a decent explanation of absorbtion chillers.
Very good explanation for skilled and unskilled people, pls upload more like this
This video providers excellent refrigeration training. Thanks, from Dubai UAE
Wow this is dated - 1944 - excellent info thx
I'll buy that, but why are there so many comments praising this to the sky? I rarely criticize videos, after all this stuff is FREE! In this instance, I felt the need to bring a little reality to all the glowing praise so others might get the idea that this isn't really the best video ever on the subject.
this is exactly what i was looking for! you can never understand HVAC without knowing this fundamental info. thanx
Old is Gold!
Zelo dobra ,lepa razlaga za razumevanje. Dusan,Slovenija
that was actually very good. By far the most well explained of all of the videos on refridgeration I have watched so far.
it is good for student and use to understand the basic information about refrigeration
perfect , much better than new ones if you want to understand the principles , I liked it very much
thanks, for getting back to A/C basics (all natural)
i m Mubasher involed in the refigration
i like it
its great for begginners
GOOD TOPIC FOR ALL SUBJECT INTERESTING CANDIDATES!!!!!
Wow.....this video is very insightful. I'm in love with refrigeration now!
greate explanation from the basis point.. Thanks for sharing
this video provides a basic understanding of refrigeration/ heat transfer. The newer computer generated video is much like this one but taking account more components and how the heat is transferred from a product / food via fans
Great video especially the part about latent and sensible heat. Interesting that in melting and boiling temperature remains constant even though heat is flowing through. Crazy lingo. Its like the guy who discovered it wanted to be the only guy to understand it. Like "latent heat of fusion" and latent heat of vaporization". How much sensible heat must be applied in BTU to reach the latent heat of vaporization? Got to be easier language.
Also I like how the government was involved in its cr
Absolutely perfect for I to understand. Nice and slow, and no munmbo jumbo
Theary is very well Simplified to learn for every beginner in the Refrigeration industry
S.Chakkaith
Good video, please upload more of such type educational contents.
YOU JUST HELPED ME PASS MY EXAM
An excellent presentation leccture for new Learner
old is gold
2011 and I love this video, helped me get an A
I have an exam in cooling tomorrow...i think this video just saved my ass.
Vintage video but very good!
This is simple to explain, miracles.....
very splendid.i love the lecture.it is simple and comprehensive
Respect to old school.
Wow, Morgan Freeman has been doing voice over work for quite some time!
Na, that's Bob Barker from "The Price Is Rite", seriously.
😂🤣
Boy this old, but very informative!
a better way to understand for students
Excellent vide
Outstanding...
every beginners who are interested in RAC must watvh this.....
excellent video
Best video ever
NICE VIDEO DETAILED PRINCIPLE.....
To all the HVAC technicians you are responsible to the Ozone depletion. Please do not use a CFC refrigerant like R-11, R-12 R-13, R-113, R-114, R-500, R-502, R-503. Lest save our Ozone Layer.
how about using propane or ammonia as refrigerant, would it be profitable too?
Excellent
1944 videos is better than a 2011 computer generated one....
Great video! Thanks a lot!
great video,easy to understand..
nice video
Thank you, it's very helpfull
Thank you. Looking for future vids
Awesome video!
@Tweygoh
Why? 2/3 of the energy your car uses is converted to heat that could be used to cool you! Why use a part of 1/3 that goes into motion?
thanks.. informative..hope you upload more application of law of nature...
taught me something thank you
Where it all starts! Great old video.
Excellent video, interesting and helpful :)
Thank you very much!
I am a student at Dunwoody College. I want to figure out a way to build a mini fridge for my welding project. The project is due at the end of the semester. Plus I want to store my beer..........
Excellent!!!!
Great job...nice
it good I like it
awesome video !!
so splendor,thank you
Best ever !
Excellent! im involved in the refrigeration and air conditioning field. Is there anything you have about chillers.
Really interesting
Gud One..... thanks :)
hell yes refrigeration!!!!!!!!!
This video is COOL. ;)
Soo old school but good
Nice
No sir, the irresponsible unconcerned corporations (Honeywell, 3M, Dupont, etc) are responsible. They made refrigeration so necessary in our society that we cannot eliminate it. There are bad techs that exacerbate this problem by improper procedures. Well trained concerned technicians are only doing their job by keeping these machines in working order. We do our best to convince equipment owners to upgrade old inefficent equipment using high-ODP refrigerants but this is not always possible.
In Jesus' Name, Amen. ✝️ God bless you .
is this training on DVD somewhere?
So you can throw around numbers and words all you want but, don't step on my toes. I'm just making a living working on what I consider to be a necessary evil. I do everything I can to minimize refrigerant escaping to the atmosphere. I recover the gas and use low loss fittings; so I am doing everything in my power to "save the earth". But, make sure you blame the evil greedy corporations that started all this; not the little guy just trying to survive in this dog-eat-dog world...
i have dought
while deschrge from compressor refrgrnt is converted into liquid and dis liquid absorbs heat from things wat v r kept in an refrigerator and after dat dis refreigernt is converted to gas state befire entring to suction of compressor
dought is dat
if der is nothing in refrigerator i,e nothing to cool den how refreigernt change its stae from liquid to gas ??
shabbir shaikh Because as the refrigerant enters the evaporator tubes (the ones inside the walls of the unit) its pressure drops. Just like placing water in a vacuum, it boils even though it's at room temperature. Also, the inside of the box is never quite as cold as the refrigerant and the insulation isn't perfect so some heat will always enter the unit, even with the door shut all the the time.
On spot with reply.
So to answer his concern if we had this situation, refrigerate would not change state therefore liquid refrigerate would flood the compressor and damage the valves. The compressor only pumps gas not liquid.
It takes 144 btus to change water to ice and it takes 970 btu's of heat to change a liquid to a gas and vice versa.
As a young HVAC tech, god why didnt i saw this in school?
What is a pykrete cold storage vessel?
Outstanding...
what does he say at 5:20 - 5:23
"..flow to the warmer to the cooler of 2 ...?.... bodies..."
what is the name of the liquid refrigerant?
awsm
NICE
GOOD
Thanks
conceptual
The Federal *Security* Agency is making refrigeration training films????
ED parkour Probably where They (hear that ominous music??) will store Patriotic Body Parts after they kill Good, Honest Patriots in NWO FEMA Death Camps.
EDIT: After which they'll be ground up and *eaten* by Atheists and the Bilderbergers.
hay quá
how much calories is 1 TBU?
People who watch this all engineer :D
nope i am trying to find a way to cool my CPU
Well good idea there mate, hope you find a way to cool your CPU :D
pharmacy here :V
Principles of ammonia RV Refrigeration at FRVTS
Compression refrigeration seem more efficient.
The great thing about the free market is that I don't have to know a damn thing about this!
It's BASIC PRINCIPLES. Not INTRICATE DETAILS.
@mathieuemi666 I meant Joules sorry
Lol, This video is a classic....