your LECTURE are very impressive,I am really very impressed. and I agree with you, lecture are long but deeply explain. I like your LECTURE, I like your tone voice, and also like your understanding process be continue sir.
I have a doubt. both condenser coil and evaporator coil looks like board with so many fins in it. What for is that fins? Sir. y no reply for working of jet engines, aeroplane fly? Need working of automatic transmission, manual transmission etc. pls
In condenser how phase transfer take place , as you are assuming the temp of gas after comp as 55°c and ambient is at 35°c due to temp difference the Heat transfer will take place but what happen when the temp of gas reaches 35°c . How further fall in temp take place or refrigerant reaches below its bpt .
Sir . Please make lecture on basic concept of thermodynamics and strength of material. Sir your way of teaching is superb . Please make vedio on this subject
Rohit Chowdhury thank you sir .... I have some doubt on psychometric chapter in comfort air conditioning, thermodynamics of human body ,effective temp , comfort and comfort chart and economic consideration for selecting the comfort point . Sir please make vedio on this topic .
DOUBT: at around 26:26 u have said that refrigerant temp after exit from evaporator is around 15 deg celcius. and abient temp is 35 deg. Whats the meaning in taking refrigerant temp above abient and taking down again to ambient using condenser ? Refrigerant will gain ambient temp spontaneously why compreesor needed. ? Plz explain genuine concepts... I invested many hours in all ur videos and now feeling that ur concepts arent clear or u r not able to explain neatly
See it is simple. In that portion I have tried to explain that why we need compressor. The refrigerant must loose heat to the ambient in the condenser. For that temperature of the refrigerant must be higher than that of ambient... If the temperature of the refrigerant is lower than that of ambient, then ambient will give heat to the refrigerant instead... To avoid that we send the refrigerant from the evaporator to the compressor to make its temp. Higher than that of ambient..then that heated and pressurised refrigerant moves to condenser.
See, sake of compressor is to bring high pressure back . High temp is because of compression and also because of heat flowed from food (in fridge )to refrigerant in evaporator process. This temp is reduced to normal ambient temp in condenser. and also phase change occurs here. What u r saying in reply is irrelevant.Please think over it. Our sake is to get refrigerant at lower temp so that it will be able to extarct heat from food in fridge. Then why we will take refrigerant which is at 15 deg celcius (after exit from evaporator ) to a temp higher than ambient then bringing it back to ambient temp. ? Temp rise is undesirable always but its unavoidable due to compressor action and heat extraction from food. This temp rise due to both reasons is reduced in condenser. Reply me only if u disagree with me.
Sir, when refrigerant goes to compressor and its temp. And pressure increase for ex. 55°c and ambient temperature is 35°c then how its temperature decreases to its initial temperature i.e, 10°c as it will cool maximum to 35°c and how it be converted from gas to liquid
DOUBT at around 20:00 , how can u say that as temp decrease moisture(specific humidity) also dec? In this cooling with dehumidification is occuring na? then dehumidification is just because keeping refrigerant temp below DPT of air,as u said in previous videos...Although temp of air decreases due refrigerant, dehumidification wont occur if refrigerant temp is above DPT of warm air entering, isnt it?
Thank u Rohit For Great Video, but i have a doubt while air leaves from compressor its temperature is 55°C & Ambient Temperature is 35°C Then how the temperature of outlet refrigerant from condenser comes to 2°C because my doubt is there is air is only coolant to cool the refrigerant & its temp. is 35°C then how outlet refrigerant comes in liquid state & its Boiling Point is 10°C?
a. dedicated lecturer. Congrats.
Excellent work sir
Excellent presentation Eventhough lecture is lengthy it is worth the effort to explain the seemingly complicated nature of AC working though simple.
Please make video on air refrageration cycle problem
Thanks brother.....for your keep updating lectures.
Plz make vdos on fluid machinery
sir ur lectures are super. and take ur time it's good for us to understand deeply.. please make another video on RAC
your lecture are very helpful for me
your LECTURE are very impressive,I am really very impressed. and I agree with you, lecture are long but deeply explain. I like your LECTURE, I like your tone voice, and also like your understanding process be continue sir.
Very precious comment. Very soon I will upload a numerical problem just on your request
Rohit Chowdhury thank you sir
Sir your lecture is awesome
Very nice explain for this Lecturer
I have a doubt. both condenser coil and evaporator coil looks like board with so many fins in it. What for is that fins? Sir. y no reply for working of jet engines, aeroplane fly? Need working of automatic transmission, manual transmission etc. pls
Where Dehumidificatio takes place in AC?
In condenser how phase transfer take place , as you are assuming the temp of gas after comp as 55°c and ambient is at 35°c due to temp difference the Heat transfer will take place but what happen when the temp of gas reaches 35°c . How further fall in temp take place or refrigerant reaches below its bpt .
Sir . Please make lecture on basic concept of thermodynamics and strength of material. Sir your way of teaching is superb . Please make vedio on this subject
Definitely. Very soon I will start lecture series on thermodynamics.
Rohit Chowdhury thank you sir .... I have some doubt on psychometric chapter in comfort air conditioning, thermodynamics of human body ,effective temp , comfort and comfort chart and economic consideration for selecting the comfort point . Sir please make vedio on this topic .
Sir please make a video on fluid mechanics. your teaching skills are very much appreciated.
Thanks for your support.
Sir, why is the expansion valve of A.C kept in the condenser unit.Is there any specific reason?
DOUBT: at around 26:26 u have said that refrigerant temp after exit from evaporator is around 15 deg celcius. and abient temp is 35 deg. Whats the meaning in taking refrigerant temp above abient and taking down again to ambient using condenser ? Refrigerant will gain ambient temp spontaneously why compreesor needed. ? Plz explain genuine concepts... I invested many hours in all ur videos and now feeling that ur concepts arent clear or u r not able to explain neatly
See it is simple. In that portion I have tried to explain that why we need compressor. The refrigerant must loose heat to the ambient in the condenser. For that temperature of the refrigerant must be higher than that of ambient... If the temperature of the refrigerant is lower than that of ambient, then ambient will give heat to the refrigerant instead... To avoid that we send the refrigerant from the evaporator to the compressor to make its temp. Higher than that of ambient..then that heated and pressurised refrigerant moves to condenser.
What I explained is not wrong. You read my reply u will understand
See, sake of compressor is to bring high pressure back . High temp is because of compression and also because of heat flowed from food (in fridge )to refrigerant in evaporator process. This temp is reduced to normal ambient temp in condenser. and also phase change occurs here. What u r saying in reply is irrelevant.Please think over it. Our sake is to get refrigerant at lower temp so that it will be able to extarct heat from food in fridge. Then why we will take refrigerant which is at 15 deg celcius (after exit from evaporator ) to a temp higher than ambient then bringing it back to ambient temp. ? Temp rise is undesirable always but its unavoidable due to compressor action and heat extraction from food. This temp rise due to both reasons is reduced in condenser. Reply me only if u disagree with me.
Sir, when refrigerant goes to compressor and its temp. And pressure increase for ex. 55°c and ambient temperature is 35°c then how its temperature decreases to its initial temperature i.e, 10°c as it will cool maximum to 35°c and how it be converted from gas to liquid
sir if we run with out expansion valve what will happen.
DOUBT at around 20:00 , how can u say that as temp decrease moisture(specific humidity) also dec? In this cooling with dehumidification is occuring na? then dehumidification is just because keeping refrigerant temp below DPT of air,as u said in previous videos...Although temp of air decreases due refrigerant, dehumidification wont occur if refrigerant temp is above DPT of warm air entering, isnt it?
REPLY SOONER PLEASE
reply sir quiker
Tq Very useful sir .upload slopes and deflections,simple bending and shear stress in beams
Plz sir help
Sir how can I find your new channel mechItEasy ?
This channels name will change to mechiteasy after some time
Hello sir I have a major doubt
What doubt ask
Thank u Rohit For Great Video, but i have a doubt while air leaves from compressor its temperature is 55°C & Ambient Temperature is 35°C Then how the temperature of outlet refrigerant from condenser comes to 2°C because my doubt is there is air is only coolant to cool the refrigerant & its temp. is 35°C then how outlet refrigerant comes in liquid state & its Boiling Point is 10°C?
Sir please make videos on different subjects in mechanical like kom,fem
Sir. I have a great expectation from you to explain the working of jet engines in aeroplanes. Could you please explain how an aeroplane flies?
Yes definitely. Soon you will get it.
can you make video on psychometric numerical problems. I want on this topic, please sir if possible.
thank you.
Explaining elementary aspects too much testing the patience and no clarity