I am a Bengali. I don't know understand English properly. I am trying to improve my experience in English. Please pray everyone for me so that I can success in my dream.
Great animation, however needs to be added and alternated. There is alternative evaporative cooling, with water and without compressor or chemical refrigerant.
Great video. Out of the condenser though, we have a high pressure and slightly lower temperature due to the latent heat (no phase change heat). What the video says is not very accurate. The remarkable temperature drop takes place in the valve.
Nice videos. BUT missing layman's aspects (to me). What is happening is: A *medium* is sent in to the hot place. The *medium gets heat* (from our body or from our food). Then the *medium* is sent outside where the *medium emits the heat* (to atmosphere). It is always *flow of heat*. Heat flows from hot to cold substance. There is nothing called *flow of cold*. Why evaporation & condensing of the refrigerant? Because that is the most efficient way of removing/adding heat to a medium. The medium (=refrigerant) in most cases is the Freon gas/liquid. Why Freon? Because that gas boils to vapor and condenses to liquid within our *desired* hot/cold temperature range. 1. Evaporator: We receive cold air from. 2. Condenser: We emit hot air to outside. In a window AC for example, Evaporator fan blows the cold air. Cools our face and heats the refrigerant. Condenser fan blows the hot air (to outside ), heats the atmosphere and removes the heat from the refrigerant. Similarly in Refrigerator: The evaporator coil is wound around the icebox. Icebox gets cold. The condenser coil behind the refrigerator heats up our kitchen! *Watch the video again*.
At 1:44, you say low pressure/temp vapor enters compressor. At 3:25, output of evaporator is low pressure/high temp. But next step is input into compressor. Not matching. Or a step is missing.
Actually both are correct. For example, in the evaporator we give temperature like 25°C. This 25°C is low temperature for us. But the refrigerant will boil at very low temperature. If we give 25°C the refrigerant will boil and evaporate. So, for the refrigerant 25°C is high temperature. If we feel 25°C is low temperature, we can say it is low. If we feel 25°C is high temperature, then we can say it is high.
It should state higher temperature at the evaporator outlet. All of the liquid entering the evaporator is boiled off and additional heat is added causing it to become a superheated vapour. By comparison to the refrigerant leaving the compressor as mentioned at 1.44 the refrigerant entering the compressor is a low temperature refrigerant so technically the video description is correct.
Hey Azar, great video. It’s helping my brain 🧠 get the concept. So I understand the idea of compressing and speeding up molecules would heat them up. After the refrigerant is hot is where I’m a bit confused. So is it just passing through the condenser with the fan that the relative ambient temperature outside the condenser is cooler that the heat travels or exchanges to the cooler air outside? Also how does the valve expand the liquid to gas?
Many technicians blame the TXV valve for a priblem in the refrigerant cycle because they never understand that if the condenser does not put out the fire of the heat of compression and condensation this heat will circulate in the system from one component to the other. The condenser is key, has to be kept clean (fins) and insure that the fans RPM are adecuate. How do you insure this? by keeping up and monitor both SUBCOOLING AND EVAPORATOR SUPERHEAT & COMPRESSOR SUPERHEAT.😊
In the beginning he said It enters the compressor at low temp , low pressure , vapor But .. when it leaves the evaporator it High temp ,low pressure , vapor
@@jovan_maddog1516 Actually both are correct. For example, in the evaporator, we give heat like 25°C. This 25°C is the low temperature for us. But the refrigerant will boil at a very low temperature. If we give 25°C, the refrigerant will boil and evaporate. So, for the refrigerant 25°C is a high temperature. If we feel 25°C is a low temperature, we can say it is low. If we feel 25°C is a high temperature, then we can say it is high. But actually, it is a high temperature which is leaving the evaporator and then it enters the compressor. When it leaves the compressor, it will be at a very high temperature.
The close up picture of the expansion valve, should not show it looking like liquid in, and gas out, if it is high pressure liquid in , and low pressure liquid out. Into the valve is HPL, out of expansion valve is LPL. Low pressure liquid does not look like it has bubbles in it.
Professor, can you send a link to a simulation program for cooling and heating systems for mechanical and electrical parts and control circuits? Thank you.
Listen you clearly don't know the refrigerant cycle. From the compressor the refrigerant is discharged as superheated gas, frim hete tje first stage of cooling is called desuperheating this occurs at the top of the condenser, and it takes up 5% of the condenser. After this the 2nd stage of cooling is called condensation that takes up 85% of the condenser leaving only 10% fro the 3rd stage of cooling called subcooling. If for any reason these three stages of cooling do not take place the refrigerant will not be 100% liquid gas and the TXV valve will not be able to feed the evaporator because the gas will be in both liquid and gas. Remember the TXV creates the pressure drop only olif the refrigerant comes to the valve at 100% liquid. Many technician blame the TXV for their poir knowledge of the refrigeration cycle. If the condenser does not adequately cool the refrigerant there will existt a high (Liquid line pressure drop) in the Liquid line and this high presdure drop, (resistance to flow) will effect the refrigerant bringing it to the TXV in two forms gas and liquid. The Achilles tendon of the refrigerant cycle is in the liquid line its been this way since inception, I REPEAT!! THE KIQUID LINE IS THE WEAKEST POINT IF THE REFRIGERANT CYCLE. MANY MECHANICAL ENGINEERS STILL DON'T UNDERSTAND THIS 😢
I like this further explanation. I think however that the video target audience might be someone who knows much less ~ a newbie like me. My sense is if he tried to get into all of that it might be too overwhelming for someone who is new to these concepts. I’ve been sitting and replaying the video and looking closely at the diagrams I’m still trying to understand how the condenser actually works to cool the very hot liquid. I have posed this question is it simply the ambient air surrounding the condenser that the heat exchanges to? I am wondering why we bother to heat up the refridgerant so intensely just to cool it again ... why can’t it just be going from room temp to cooling. I’m a hoping to become a RV tech apprentice next year so doing some pre learning.
@@part-timephilosopherLol what the video doesn’t mention is big chunks of energy released absorbed while refrigerant undergoes phase change (liquid to gas and vice versa) ie latent heat. Regarding your first question, look up boiling points etc of refrigerants (wildly different to water). Ambient temperature can be enough to cool the refrigerant into liquid. I’m no expert and always do your own research hope it helps
While explaing about evaporator it is explained that high temp low pr vapour is coming out from the evaporator then it is going to compressor, but initiallu you started explaining compreasor inlet is low temp low pressure vapour, how high temp vapour from evaporator becomes low temperature vapour at compressor inlet? Please clarify this
Actually both are correct. For example, in the evaporator we give temperature like 25°C. This 25°C is low temperature for us. But the refrigerant will boil at very low temperature. If we give 25°C the refrigerant will boil and evaporate. So, for the refrigerant 25°C is high temperature. If we feel 25°C is low temperature, we can say it is low. If we feel 25°C is high temperature, then we can say it is high.
I want to build an ac for a small grow tent, 3x3x6 ft. I have a mini fridge compressor and a pc cooling radiator and a few pc fans laying around. Do you think it will be enough? I need to bring down the temp from 30ºC to about 22ºC
Hai sir, I have doubt, At starting you said low pressure low temperature vapor is going inside the compressor., After the one cycle you saying low pressure medium or high temperature vapor?? How it’s possible?? Please explain i connfused
Actually both are correct. For example, in the evaporator we give temperature like 25°C. This 25°C is low temperature for us. But the refrigerant will boil at very low temperature. If we give 25°C the refrigerant will boil and evaporate. So, for the refrigerant 25°C is high temperature. If we feel 25°C is low temperature, we can say it is low. If we feel 25°C is high temperature, then we can say it is high.
the boiler ,sorry epav boils the fluid because its not liquid its divided and moatly liquid ,after it boils it becomes high pressure high temp again ,the second expansion valve now drops the pressure again qnd temp because its not good to pump superheated gas into the suction port ,because this job is done inside the compresor ,but not befor it ,the heat of the gas its becauae the body of the compressor is hot ,and the refrigerant boils at -140 maybe or 170 ,the heat from the pump body ,not because of the vomoression ,compression alone allows condensation of the gas to a liquid ,
My Brazilian teacher shared this video with his students.
It's nice to hear. Thank you for sharing it here.
ruclips.net/video/yombl1k_L8s/видео.htmlsi=t-k5w8Roc-E_1SKY
Great video
I am a Bengali. I don't know understand English properly. I am trying to improve my experience in English. Please pray everyone for me so that I can success in my dream.
Excellent to explain the system 🎉😊
Glad you liked it 😊
ruclips.net/video/yombl1k_L8s/видео.htmlsi=t-k5w8Roc-E_1SKY
Thanks sir you make me understand God bless you and give you a long time to live
Studying HVAC, love this video! Thank you.
Glad you enjoyed it!
Great job thank u for your explanation very simple and useful
You are welcome! 😊
Very good explanation in detail thanks.. I'm from Pakistan nice Sir..🎉
Lov u bro really knowledgeable ❤❤
This is the best video I have ever seen before! 👍🏼🙏
Thank you 😊
This is the only video that I have ever seen!
Great animation, however needs to be added and alternated. There is alternative evaporative cooling, with water and without compressor or chemical refrigerant.
Very good presentation and easy to understand.
Glad it was helpful!
Excellent 👌
Thank you so much sir 💐💐🙏🙏
Great video. Out of the condenser though, we have a high pressure and slightly lower temperature due to the latent heat (no phase change heat). What the video says is not very accurate. The remarkable temperature drop takes place in the valve.
Yes
Thank you for useful video for beginners. You deserve a like and subscribe
Thanks for the sub!
Very good video ji
Thank you so much 😊
ruclips.net/video/yombl1k_L8s/видео.htmlsi=t-k5w8Roc-E_1SKY
Nice videos. BUT missing layman's aspects (to me).
What is happening is:
A *medium* is sent in to the hot place. The *medium gets heat* (from our body or from our food).
Then the *medium* is sent outside where the *medium emits the heat* (to atmosphere).
It is always *flow of heat*. Heat flows from hot to cold substance.
There is nothing called *flow of cold*.
Why evaporation & condensing of the refrigerant? Because that is the most efficient way of removing/adding heat to a medium.
The medium (=refrigerant) in most cases is the Freon gas/liquid. Why Freon? Because that gas boils to vapor and condenses to liquid within our *desired* hot/cold temperature range.
1. Evaporator: We receive cold air from.
2. Condenser: We emit hot air to outside.
In a window AC for example,
Evaporator fan blows the cold air. Cools our face and heats the refrigerant.
Condenser fan blows the hot air (to outside ), heats the atmosphere and removes the heat from the refrigerant.
Similarly in Refrigerator:
The evaporator coil is wound around the icebox. Icebox gets cold.
The condenser coil behind the refrigerator heats up our kitchen!
*Watch the video again*.
Very Nice explanation
Thank you 😊
Beautiful animation at 4:00
ruclips.net/video/yombl1k_L8s/видео.htmlsi=t-k5w8Roc-E_1SKY
Thank you ❤️
Good explanation
Excellent video. Clearly presented information.
At 1:44, you say low pressure/temp vapor enters compressor. At 3:25, output of evaporator is low pressure/high temp. But next step is input into compressor. Not matching. Or a step is missing.
Actually both are correct. For example, in the evaporator we give temperature like 25°C. This 25°C is low temperature for us. But the refrigerant will boil at very low temperature. If we give 25°C the refrigerant will boil and evaporate. So, for the refrigerant 25°C is high temperature.
If we feel 25°C is low temperature, we can say it is low.
If we feel 25°C is high temperature, then we can say it is high.
It should state higher temperature at the evaporator outlet. All of the liquid entering the evaporator is boiled off and additional heat is added causing it to become a superheated vapour.
By comparison to the refrigerant leaving the compressor as mentioned at 1.44 the refrigerant entering the compressor is a low temperature refrigerant so technically the video description is correct.
Hey Azar, great video. It’s helping my brain 🧠 get the concept. So I understand the idea of compressing and speeding up molecules would heat them up. After the refrigerant is hot is where I’m a bit confused. So is it just passing through the condenser with the fan that the relative ambient temperature outside the condenser is cooler that the heat travels or exchanges to the cooler air outside?
Also how does the valve expand the liquid to gas?
Excellent...if u give values and temperature values also it would have been better..
You are the best ❤
Many technicians blame the TXV valve for a priblem in the refrigerant cycle because they never understand that if the condenser does not put out the fire of the heat of compression and condensation this heat will circulate in the system from one component to the other. The condenser is key, has to be kept clean (fins) and insure that the fans RPM are adecuate. How do you insure this? by keeping up and monitor both SUBCOOLING AND EVAPORATOR SUPERHEAT & COMPRESSOR SUPERHEAT.😊
Nice explanation. Do you have a video on how the heat pump works on heating mode? Thanks
Very good explained now I'm perfect 😀
That's good 👍 👌 👏 😊
Thanks for your kind efforts. And your simplicity in your explanation
Very good 👍
Thank you 👍
ruclips.net/video/yombl1k_L8s/видео.htmlsi=t-k5w8Roc-E_1SKY
In the beginning he said
It enters the compressor at low temp , low pressure , vapor
But ..
when it leaves the evaporator it
High temp ,low pressure , vapor
So how did he get the high temp from the evaporator to enter the compressor at low temperature ? 🤔🤔
@@jovan_maddog1516 Actually both are correct. For example, in the evaporator, we give heat like 25°C. This 25°C is the low temperature for us. But the refrigerant will boil at a very low temperature. If we give 25°C, the refrigerant will boil and evaporate. So, for the refrigerant 25°C is a high temperature.
If we feel 25°C is a low temperature, we can say it is low.
If we feel 25°C is a high temperature, then we can say it is high.
But actually, it is a high temperature which is leaving the evaporator and then it enters the compressor. When it leaves the compressor, it will be at a very high temperature.
Excellent explanation! Thanks!
You're welcome!
Nice
Thanks
ruclips.net/video/yombl1k_L8s/видео.htmlsi=t-k5w8Roc-E_1SKY
Great explain
Excellent Video !!
Thank you
Very good
Thank You 😊
Please keep support the channel.
ruclips.net/video/yombl1k_L8s/видео.htmlsi=t-k5w8Roc-E_1SKY
thanks for explaining
Que vídeo top , muita bom.congratulations from Brazil
thank you it is very useful.
You are welcome 😊
ruclips.net/video/yombl1k_L8s/видео.htmlsi=t-k5w8Roc-E_1SKY
Great video thank you
Very welcome
Nice videooo
Thank you
Great video!
Thanks! 😊
The close up picture of the expansion valve, should not show it looking like liquid in, and gas out, if it is high pressure liquid in , and low pressure liquid out. Into the valve is HPL, out of expansion valve is LPL. Low pressure liquid does not look like it has bubbles in it.
At where the fan is blowing air on the evaporator side, is it blowing it into the evaporator coils or blowing them away to get cool air ?
The fan blows air into the evaporator coils. This air passes over the cold coils, absorbing heat and cooling down.
The fan blows through the evaporator
thanks for your explanation
Thank you 😊
ruclips.net/video/yombl1k_L8s/видео.htmlsi=t-k5w8Roc-E_1SKY
LOT of thanks
Excelente
Gracias!!!
ruclips.net/video/yombl1k_L8s/видео.htmlsi=t-k5w8Roc-E_1SKY
Thank you for the this
Thank you
You're welcome 😊
ruclips.net/video/yombl1k_L8s/видео.htmlsi=t-k5w8Roc-E_1SKY
Professor, can you send a link to a simulation program for cooling and heating systems for mechanical and electrical parts and control circuits? Thank you.
I tried to find out, but I couldn't get the proper one. I will try to get the good one.
Listen you clearly don't know the refrigerant cycle. From the compressor the refrigerant is discharged as superheated gas, frim hete tje first stage of cooling is called desuperheating this occurs at the top of the condenser, and it takes up 5% of the condenser. After this the 2nd stage of cooling is called condensation that takes up 85% of the condenser leaving only 10% fro the 3rd stage of cooling called subcooling. If for any reason these three stages of cooling do not take place the refrigerant will not be 100% liquid gas and the TXV valve will not be able to feed the evaporator because the gas will be in both liquid and gas. Remember the TXV creates the pressure drop only olif the refrigerant comes to the valve at 100% liquid. Many technician blame the TXV for their poir knowledge of the refrigeration cycle. If the condenser does not adequately cool the refrigerant there will existt a high (Liquid line pressure drop) in the Liquid line and this high presdure drop, (resistance to flow) will effect the refrigerant bringing it to the TXV in two forms gas and liquid. The Achilles tendon of the refrigerant cycle is in the liquid line its been this way since inception, I REPEAT!! THE KIQUID LINE IS THE WEAKEST POINT IF THE REFRIGERANT CYCLE. MANY MECHANICAL ENGINEERS STILL DON'T UNDERSTAND THIS 😢
🤣🤣🤣
Ok he said the same thing you are saying Chill out. 🙄
I like this further explanation. I think however that the video target audience might be someone who knows much less ~ a newbie like me. My sense is if he tried to get into all of that it might be too overwhelming for someone who is new to these concepts. I’ve been sitting and replaying the video and looking closely at the diagrams I’m still trying to understand how the condenser actually works to cool the very hot liquid. I have posed this question is it simply the ambient air surrounding the condenser that the heat exchanges to?
I am wondering why we bother to heat up the refridgerant so intensely just to cool it again ... why can’t it just be going from room temp to cooling. I’m a hoping to become a RV tech apprentice next year so doing some pre learning.
@@part-timephilosopherLol what the video doesn’t mention is big chunks of energy released absorbed while refrigerant undergoes phase change (liquid to gas and vice versa) ie latent heat. Regarding your first question, look up boiling points etc of refrigerants (wildly different to water). Ambient temperature can be enough to cool the refrigerant into liquid. I’m no expert and always do your own research hope it helps
Syukron.
ruclips.net/video/yombl1k_L8s/видео.htmlsi=t-k5w8Roc-E_1SKY
While explaing about evaporator it is explained that high temp low pr vapour is coming out from the evaporator then it is going to compressor, but initiallu you started explaining compreasor inlet is low temp low pressure vapour, how high temp vapour from evaporator becomes low temperature vapour at compressor inlet? Please clarify this
Actually both are correct. For example, in the evaporator we give temperature like 25°C. This 25°C is low temperature for us. But the refrigerant will boil at very low temperature. If we give 25°C the refrigerant will boil and evaporate. So, for the refrigerant 25°C is high temperature.
If we feel 25°C is low temperature, we can say it is low.
If we feel 25°C is high temperature, then we can say it is high.
Sir, in liquid line the condition of refrigerant is high pressure, high temperature liquid.
the refrigerant leave from condenser is, high pressure and low temperature?
Basic components are 5.
Capillary tube
I want to build an ac for a small grow tent, 3x3x6 ft. I have a mini fridge compressor and a pc cooling radiator and a few pc fans laying around. Do you think it will be enough? I need to bring down the temp from 30ºC to about 22ºC
Hai sir,
I have doubt,
At starting you said low pressure low temperature vapor is going inside the compressor.,
After the one cycle you saying low pressure medium or high temperature vapor??
How it’s possible??
Please explain i connfused
Actually both are correct. For example, in the evaporator we give temperature like 25°C. This 25°C is low temperature for us. But the refrigerant will boil at very low temperature. If we give 25°C the refrigerant will boil and evaporate. So, for the refrigerant 25°C is high temperature.
If we feel 25°C is low temperature, we can say it is low.
If we feel 25°C is high temperature, then we can say it is high.
Can you explain everything in the comments section I can write down and study
Thanks
I dont understand because many fridges i see i dont see a single fan, though have condensor, compressor,and those pipes causing icing
What is the saftey of refrigeration cycle.
Compressor inside gas liquid stage
Incase liquid goes through the compressor what happen
The liquid is a incompressible thing, so the compressor can't compress the liquid and it will damage the compressor by giving more load.
Why do we need a compressor at all to increase the temperature of the refrigerant? Why don't we bypass it?
In compressor Mora liquid stage in Problem
How is the video designed, I want to participate and make such videos
Can you help me?
I used Wondershare Filmora video editing software to make this video. You can try Adobe After Effects for more advanced animation tools.
the boiler ,sorry epav boils the fluid because its not liquid its divided and moatly liquid ,after it boils it becomes high pressure high temp again ,the second expansion valve now drops the pressure again qnd temp because its not good to pump superheated gas into the suction port ,because this job is done inside the compresor ,but not befor it ,the heat of the gas its becauae the body of the compressor is hot ,and the refrigerant boils at -140 maybe or 170 ,the heat from the pump body ,not because of the vomoression ,compression alone allows condensation of the gas to a liquid ,
My advice to you readers is this, unless the person is a qualified PE engineer with ASHRAE or ARI. Be careful with whatbyou watch on RUclips😅
I want to know what mistake you found in this video?
Wary youz fulll. Gad blas-U
ruclips.net/video/yombl1k_L8s/видео.htmlsi=t-k5w8Roc-E_1SKY
Thank you 😊
Op