HVAC Heat Exchangers Explained The basics working principle how heat exchanger works
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- Опубликовано: 12 июн 2024
- HVAC Heat Exchangers. In this video we'll be answering what is a heat exchanger, how does a heat exchanger work and then using 3D models we'll review real world applications to help you learn HVAC heat exchangers and building services.. We'll look at plate heat exchangers, shell and tube heat exchangers, duct heaters, furnace evaporators, cooling coils, trench heaters, rotary heat exchangers and many many more.
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Great video! Just one question: At 5:16, where it says "Exhaust Air Inlet (Warm)", should that be "Exhaust Air Outlet (Warm)"?
Hello sir, i like u'r videos
I m doing project on Atmospheric water genration device, by using vcc system but i don’t know how start n from where to start
Plz give me any guidance or suggestions for start my project
Plz suggest any good book for reff. Calculations
@@tech3431 dk4kt
sir i have a question. what if i want to build my own mini electricity? through natural gas. since my place have own natural gas on underground. now i want to install heat exchanger on my genset. is it possible to do that? instead of using it's giant radiator. I'll just took it out then replace it with heat exchanger system? so could run it continuously everyday?
@@carlotheatheist don't mess with your generator.... mess with that, you can hurt someone working on the hydro lines in the event you manage to backfeed power into the hydro line when there's power present..... geez the idiocy of people these days.
I don't skip ads, little way to thank Paul. Love you Paul !
I think he loves you too hun xx
Perfect. Been looking for a thorough explanation on HRV systems (ducted plate) for ages and this video nails it. Thankyou
Learn *PLATE HEAT EXCHANGER* here ➡️ ruclips.net/video/r67f4V6pOOw/видео.html
may I say, I love your channel...
i don't have a clue when it comes to engineering and machines
but your videos explains them quite well and that I can easily understand it, not everything but just how it works...
very informative
Best video yet! Thank you!
What a great Chanell, recently started a building systems course and Paul has been a wealth of knowledge. Thank you so much!
Great video. I always enjoy watch your demonstration.
You are awesome! Your videos are so helpful
Man I wish this vid was made a lot sooner, Could have saved me a lot of research at the beginning of the year! lol
Same lol
Your genius.. Thanks for the videos. Its a big help
Amazing video!!!!! Thank you
I learn many things about AC because of your videos.thanks😊
really great !! thank you
Please do different videos that explain hvac steam operation, pilot valves, spences, steam traps, drip leg, steam tree and how the process works.
Also the condensate and condensate pumps.
Thank you for your awesome video.
thanks sir this is a big help to me and want to learn Hvac system.
"Hach-Vack" love it bro 😂🙏 thank u for this
Super informative and covering everything. Good job
Appreciate if doing a video about temperature approach in heat exchanger.
Thanks
I have agonised over trying to understand Air Heat Pumps - thanks a bunch. All now clear.
excelent explanation! Thanks for this content.
Great Explanation. Nice work !!
yes super great presentation keep it coming
Love these videos, thanks
I like your videos explanation makes more easy to understand great 👍
Outstanding information
A very good video, thanks.
A full description of heat exchangers without any judgment
Very good start .thanks
Is there a way to know if you have uploaded any video explianing the LMTD and other methods for/and heat exchanger efficiencies? Please let me know. thanks Paul for everything!
Thanks bro you nailed it
I think the hot water inlet should be at the bottom of finned tube coil. Especially when we talk about cool air. Is that right? Anyway it is the best technical channel on YT. Great job.
Brilliant !
Great video! Can you make a gas furnace video?
Great video.. 👍
Sir...ur videos is awesome..
I Pyar mein bolo aapke Pyar Mein hi happy
Hey great video, very informative. Not sure if someone has already pointed this out but inlet has been spelt as “intlet” twice around 5:30. Also the once on bottom left corner of screen should be outlet right? Simple typing mistake I’m sure
Thanks
Ducted plate heat exchanger.. I need more detay.. overall very nice.. thanks
Thanks!
Thank you, Randy
thanks for putting the units in celsius! it's easier to understand this way.
Not for North Americans! :-)
Awesome
Should the left exhaust outlet in the ducted heat exchanger diagram be labeled as outlet?
What effect will it cause to the overall heat exchange functionality?
Thanks a lot for this channel, can i ask when doing vrv selection on the software why using the evaporator oncoil temperature 24/17c. compare to 27/19 c. was giving me better performance of condenser coil?
New VRF unit video here:➡️ ruclips.net/video/4i1XgcP1tmw/видео.html
Thank you very much, good explanations. Sir i am a mushroom farmer. We are using paddy straw. Bleached paddy straws can not dry . which is the best method for drying bleached and cut pieces of paddystraw , we have conveyor roller system ?
It's possible to use heat pipes for cooling car engines?
Finned tube coil are preheating coil?
There's a sugary smell coming out of our ac vents we just had the evaporator coil changed and the condenser. I read the smell is from a cracked heater exchange. My question is: Is the heater exchange located in the evaporator coil? The one we have is the cone shaped one (upside down letter V).
¡Gracias!
Thank you
Pleass, make a video with explanation of flooded evaps. Thnx
We did already, search evaporator on our channel videos :)
Hey man, really interesting video! Thanks for sharing!
I wonder if you have done or would do a video on the relative efficiency of each of these systems and also a video where you compare heat transfer fluids, like air, water and the different refrigerants.
Also if you know about combined cycle electricity generation at low temperatures (home scale with refrigerants?) I would love to hear more about that too! I live off grid in Canada so I am always searching for ways to make my homestead more efficient and effective. If I could make electricity from my woodstove in winter, with refrigerants producing power and hot water (when my solar panels are not putting out much power) that would be amazing!
Seen our new video on HOW SOLAR PANELS WORK in detail ruclips.net/video/Yxt72aDjFgY/видео.html
receiver -condenser -plate chiller
Which is better sir falttube or round tube for micro heat exchangers
Flat tubes have better surface area, good for heat exchange but pressure loss of coolent is higher.
Shell & Tube type heat exchangers used to be used on a lot of steam locomotives in the USA......they were known as the "Elesco" feed water heater.
Sir please explain gasket plate heat exchanger (indirect connection)what is use of this?
Check this video out ruclips.net/video/r67f4V6pOOw/видео.html
13:50 - what is in the heat pipe?,a low pressure water mixture? or is coolant? i.e. something much colder than the cold water entering the device, no?
Shell and tube, plate and radiator HX
Which heat exchangers are used in Gas Furnaces ?
A= tube and shell
B is microchanel
C is plate
Isn’t and heat exchanger just another name For C -coil ? I need answer pleaseee
Hi Paul, your videos are great. Very helpful information. Could you consider slowing down a bit though? Also, any chance you can see about adding a quiz so engineers can earn PDH?
set the playback speed to 0.75x
What about secondary heat exchanger that right under the blower in a home.
Snowmobiles have heat exchangers. When the snow kicks up in the tunnel above the track they keep the engine cool.
0:56 A) coaxial B) flat plate
C) micro-channel
But where does the air going in come from? And the water flowing through the pipes do you put them there or they are bought like that?
The air is coming from a fan system. The pipes are already in there .
Can any one Tell me at what temperature set point the outside air handler unit should be, I’m from Houston Texas, the summers are very humid
And winter is not cold like up north.
55 to 65 if capable . This means with no re heat there is cooling capability and you can easily add heat for heating
15:43 Plate heat exchanger
What if the fins get tilted due to some external force and the thin tubing becomes close to each other in the heat exchange system in outer unit of my split ac. Do I need to worry about this? Will it effect the cooling mechanism of my air conditioner? Please respond.
Yes it will reduce it's effectiveness. You should use a fin comb to brush through and straighten them. Do not attempt with any other hand tools. Stay clear of the pipe.
@@EngineeringMindset can i send you the picture. It's more complicated. Someone stood over the outdoor unit and thus the tubing bent slight downwards making a swing like shape and because of this the fins got tilted. I can not straighten them as there is no space left for them to get straight
What's the name of the song & band
Well
I'm excited to see that my country of Denmark actually is well-known for something besides lego and insolin
universal epa holder:guess I missed this class
true or false? The initial heat transfer between an object and a fluid occurs through conduction.
send help my boss is having me learn hvac so i can fix the system here at work. he had the whole commercial system rewired to be controlled by a nest home thermostat. i need help. send help.
is AHU a type of heat exchanger as well? :)
No an ahu is generally a piece of equipment that has a heat exchanger but also has dampers for controlling outside air and fans moving air .
@@rodneyhickman825 thx for the explanation! Does that mean an AHU is kind of like a air conditioner that we use at home but with a larger scale?
@@Pasunreve212 I wouldn't say that . I mean it does push out air but the heat exchanger inside it can be heating or cooling or can have one of each . And the heat exchanger most often is just one of many in a system . The ahu has a method of preheating air coming from outside . One method is using the exhausting air and mixing it to create desired setpoint . A second method is a heat recovery that indirectly uses exhaust air to preheat incoming outside air .
I don't know who this is supposed to be for. I am not a handy person. I found that it went too fast for me, although I did pick up some general concepts.
Is a heat exchanger heating a cold thing or cooling a hot thing?
Heat always flows from hot to cold.
Both. Just know that the absence of heat is what we perceive as "cold". When you open the door to your home on a hot summer day your not letting the cold out your actually letting the heat in..😂 chew on that for a while..lol
I can’t find where there’s a part of how preheat coil works
Preheat coils are often also called tempering coils . They are not the final heating source . Usually set around 65-60f . The final heat is added near the outlet to each space.
There is no electro-magnetic waves emitted out of Steam Radiators, which indeed heat by radiating. A better description of radiating is Object to Objects heat transfer.
Yes
What is balancing valve
Sets water flow rate through a coil or system .
R134a
A. shell and tube B. ? C. Plate
good effort
En español por favor
B) Stacked Fin /Stacked Plate Heat Exchanger
C) Radiator/Condenser Coil Design
A) Idk
I've been studying english for quite some time and I haven't never been capable to pronounce the word "water" properly.
a. utube
b. plate?
c. radiator
The radiator converts the temperature by radiation more than convection. It distributes the energy uniformly in the locals and chambers
The inlet on a Car radiator is feed through the bottom for convection.
Phe
hechvac
Microplate and microchannel 1:04
You are using the term convection in the wrong application. All of this is conduction. When the hot surface comes into physical contact with the colder air, there is energy transferred by conduction. When two items of physical matter meet with a temperature gradient, that is conduction.
Convection requires physical movement of a fluid. But even with that physical movement, you can not have convection until you conduct the energy first. So all convective heating is just conduction through a fluid. But when that fluid moves, it heats up the fluid next to it, again by conduction. Fluid is matter, so when matter comes into conduct with other matter, that is conduction.
To make this clearer, it is like saying that there are three types of energy sources: Fossil fuels, nuclear, and electric. One is not like the others. Convection does not transfer energy. Convection is what you can call conduction if at least one of the conduction surfaces is a fluid.
Thin hair
No. I cannot name any of them. 😅😅😅
Bk
I don't recognize your use of the word "convection.". Convection involves the bulk transfer of heat driven by gravity, where temperature differences in a fluid (gas or liquid) correspond to density differences which under the influence of gravity lead to pressure gradients that drive convection currents. Hence hot air rising and cool air sinking, for example. When you drive air through a coil to transfer heat it is predominantly conduction. Maybe HVAC has its own use of the word. Or maybe I'm all wet.
Agree, i believe there are several instances where the vid erroneously states convection instead of conduction.
radiation, convection, conduction.
Yeah I am sorry but electric resistance heaters like in a hot water heater are not heat exchangers. By definition, you are not exchanging heat between 2 fluids. All you are doing is heat transfer which is not the same as a heat exchanger.
I skip but then again I'm not going to do that I know you make revenue I just realised. I'll not skip ads
Thanks!
Thank you
Finned tube coil are preheating coil?
They can be a preheat coil or a final heating coil depending on where they are located in a system . Just think of them as something that adds heat to air moving through a duct.