What is Superheat and Subcooling | Animation |
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- Опубліковано 9 чер 2023
- Superheat and subcooling are important concepts in refrigeration and air conditioning systems. They are used to describe the state of a refrigerant as it undergoes the cooling cycle.
Superheat refers to the temperature rise of a vapor refrigerant above its saturation temperature at a given pressure. It occurs when all the liquid refrigerant has evaporated into a vapor state within the evaporator coil. Superheating ensures that only gaseous refrigerant enters the compressor, which is crucial for the compressor's proper operation and protection. The amount of superheat is typically measured at the outlet of the evaporator coil.
Subcooling, on the other hand, refers to the temperature reduction of a liquid refrigerant below its saturation temperature at a given pressure. It occurs when all the vapor within the refrigerant has condensed into a liquid state within the condenser. Subcooling helps to increase the refrigerant's density and improve the overall efficiency of the cooling cycle. The amount of subcooling is typically measured at the outlet of the condenser.
Both superheat and subcooling are important parameters to monitor and control in refrigeration and air conditioning systems. Proper superheat and subcooling levels ensure efficient heat transfer, prevent issues such as liquid slugging in the compressor, and maintain system performance. Monitoring these values can also help in diagnosing and troubleshooting system problems, such as refrigerant undercharge or overcharge.
The desired superheat and subcooling values can vary depending on the specific refrigerant, system design, and operating conditions. It is essential to follow manufacturer guidelines or consult industry standards to determine the appropriate superheat and subcooling ranges for a given system.
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For a long time in this field finally i have understood the difference between the two.
I am glad you understood it.
Heating the water after achieving 100°C will never increase its temperature due to phase change till the last drop of water evaporates. After all water converts into vapour, the temperature starts increasing. This is called Superheating.
Yes you are correct. By mistakenly I have explained in that way for the easy understanding. The water can't reach the temperature above the 100°C. Only the water vapor can reach more than 100°C. But, it will not affect the understanding of this topic.
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@@zebralearningsenglish-pn6flQuite the contrary! The way you’ve explained superheating is confusing, misleading, and fundamentally incorrect!
@@georgejetson4378 No, I made this video to understand superheating most easily.
And it won't mislead. Explaining it most technically will confuse the viewers. My motto is to make everyone understand HVAC. If there is anything wrong in the video, you can mention it.
I think this was the best explanation I could find so far!
Thank you so much 😊. I am glad it was helpful.
Yes excellent
Very good explain sir
😊
Thank You!
Finally begin to understand this. More relations and such to learn but this is the basics. Very good
Thank you
That explains means gold to me! Thanks
Glad to hear it!
FROM CHICAGO EXELENT VIDEO THANK YOU SO MUCH
Thank you 😊
your explanation is excellent
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Welcome 👍
I need more videos like this.
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Great and straight to the point video. Thanks!
Thank You 😊
@@zebralearningsenglish-pn6fl Yes, you explained it well. TY
Thanks again 😊
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clear and concise, keep up the good work
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Very good explanation, thank u sir.
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@@zebralearningsenglish-pn6fl
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Great tutorial. Thanks.
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Supper
Thank You!
you explain very well ❤
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bravo
Thank You 😊
Video is quite helpful,thank you.
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My teacher used this video to help explain superheat/subcooling. It helped me out a lot, thank you!
That's great! I am really happy that my video helped you. Thank you sooo much ❤️😍❤️
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it's very basic of basic, thank you teacher. From Viet Nam with love
Thank you with love ❤️
SUPERB explanations, 72 years old - trainee!!!!
Glad you liked it!😊
Verey good explanation!!
Thank you!
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Nicely Explained in shortest but in meaningful way..After finding your vdo.....it removed all doubts and confusion understanding chiller Operation and parameters...thanks
I am glad, it was helpful.
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Straight to the point! I love it! Thanks for helping me to understand the refrigeration cycle!
Thank you so much for your generous support and the super thanks! I'm thrilled to hear that you enjoyed the video. Your support motivates me to create more content. Thanks again! 😊
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I like the way you explain very informative, thanks a lot
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அருமை, மிக அருமை.
நன்றி.
BEST SUPERHEAT AND SUBCOOLING EXPLANATION AND ILLUSTRATION I'VE SEEN! THANK YOU!🙏🏿💯
You are very welcome 😊
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Your videos are very, very good. I subscribed to your channel. I’m just starting school and I’m learning as much as I possibly can. Thanks.
Awesome, thank you!
Tq..
😊
Very informative, thank you. I have a question, What is the superheat or subcooling level to maintain to ensure the efficient operation of the refrigeration system? I hope in the future you will produce Video for this. Thank you and more power.
tnxs bro
Welcome, bro.
Tnq
Thank you
Thank you so much dear
Then, how do we solve when we face it is the installed heat pump? Kindly
On slide at 5.23, For subcooling, I think it should say below it's condensate point, not above.
Yes, you are correct.
The water temperature remains constant and the water vapor is overheated. The flame should flow around the entire tank. The heated water will boil at a temperature of 100 °C and the flames flowing around the tank will additionally heat the water vapor to a higher temperature, e.g. 107 °C.
I would show it on a potato fry. When we boil water in a kettle, we see "water vapor" rising. However, what we see is not water vapor, it is microscopic water droplets formed from water vapor that condensed on contact with cold air. This is because the steam was not superheated and was 100 °C. The situation is different when we prepare fries in a fryer. The oil is heated to a temperature of 120 °C (initially 190 °C). When we add French fries to the oil, the water contained in the fries begins to boil. The temperature of the fries in hot oil remains constant at 100°C, but the water vapor passing through the oil heats up to 120 degrees, which is why we do not see "water vapor" above the fryer, i.e. micro-droplets of water, because the water vapor was properly superheated. She had a reserve of energy that prevented it from immediately condensing.
Yeah, that's you're correct. We can't heat the water more than 100°C. Once the water reached the 100°C temperature, it will start to change the phase from liquid to vapor and the vapor can reach more than 100°C temperature.
And the flames should be around the tank. Because, in HVAC system the heating process happening around the coil. But for easy understand I made this animation like this.
@@zebralearningsenglish-pn6fl I thought so. A beginner in the profession only sees copper pipes, measures temperature and pressure, but does not see what phase the refrigerant is in a given section of the evaporator. Is it a gas? or liquid? It's like the structure of an atom. At school they taught me that electrons revolve around orbits like planets, although it has long been known that they have a wave-particle nature. They are a particle and a wave at the same time. However, this is difficult to understand.
@@leszekporeysky6441 What do you really want to understand? Tell me I will try to explain in an easy way.
@@zebralearningsenglish-pn6fl When it comes to particles and waves at the atomic level, I have already exhausted my understanding. We have three spatial dimensions and one temporal dimension. I understand spatial dimensions, but without understanding what time is, I will not be able to understand space-time. Therefore, I will not be able to understand what entropy is. But now I focus on simpler tasks. I am interested in systems in which you have one compressor and several evaporators operating at different temperatures. For example, imagine the evaporator of an air heat pump operating at a temperature of -7°C, the COP of the system is 2.5. What will happen when half of the evaporator is exposed to a temperature of +7°C? Will COP increase, remain unchanged or decrease.
Good evening
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Can you explain
Dew
Latent
Sensible
Dry bulb
Wet bub
Can you make one video explain by video its over useful.
We are expect
Thank you for support.
Keep post video.
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What is the good super heat temp. of 134a
5:20 -There is an error on this slide: Subcooling takes place when the refrigerant goes below its saturation (condensing) temperature, not above.
S...I have corrected my self .
Thank you for correcting me the spelling mistake.
Is it normal for the superheat to vary between +1 and -1 degrees C when starting the compressor?
In operation it stabilizes at 9 degrees C.
You cannot explain superheat and subcooling without mentioning the relationship of pressure, temperature and volume, ie. PV/T, Charles' Law. Example, Water and steam cannot have temperature above 100 degrees C at atmospheric pressure. To have higher than 100 degrees C, water and steam must be within a restricted volume that raises it's pressure, like a pressure cooker.
It's already explained in the comments. But here I have explained about the pressure and temperature. When the pressure increases, the boiling point also increases. Anyway I will make a separate video explaining what pressure and temperature is.
please may you explain clearly what is saturated vapor
Yeah, sure. Already, the video is in process. Will upload soon.
You explanation is verry clear thank you so much from Lao
You are welcome
Hello friend
Helllooo...
iam not shure the explanation is right
What do you think wrong about it in the video?
Good morning
Your videos very useful understand.
I need to your support need video
How to work piciv and fcu actuvator animation video .
And one more I want to change fcu machine,what kind requirements I need to follow up
Pipe select
Fcu tonnage
Right or left
Then any other else
Sure, I will upload.
Enthelphy, sensible, cop, latent ye kya h
On the way
Ok sir i will weat for your answer
How many types of expension valve
Plese reply sir
@@prakashsah9339 1. Thermal Expansion Valve.
2. Capillary Tubes
3. Automatic Expansion Valves
4. Electronic Expansion Valves
5. Float valves.
Thank u
at sea level, the temperature of the water will never go above 100 °C
Yes you are correct. At 100°C water will start to boil and change from liquid to vapor phase. But if we give temperature more than 100°C we can make sure the water is changing to vapor.
Likewise, if we give temperature more than the boiling point of refrigerant, we can make sure the refrigerant is changing to vapor.
Thank you for letting me know this.
Steam heat is hotter than 100*C (boiling water) and increases in temperature as pressure increases.
@@coolramone sea level, sea level
@@coolramone we are talking about sea level, sea level.
@@coolramone steam heat is hotter than boiling water, but the temperature is the same, same temperature.
wrong. this is all wrong. if you memorize this bs, you will never understand. the author does not know what he is talking about, just wants to make money
Can you tell me what is wrong in this video?
Good explanation i need more video
Yeah sure....🙂
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FROM CHICAGO EXELENT VIDEO THANK YOU SO MUCH
You are welcome!
thank you so much for this video, it was really helpful.
I'm so glad! 😊
Great explanation sir .
Thanks so much
Most welcome
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