Understand All about Sub cooling

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Hi Friends!
This video, we going to understand, all about Sub cooling.
What is Sub cooling?
Happening in Which part of System?
Benefits of Sub cooling?
Why the correct Sub cooling is an important?
Possible Cause for Low Sub cooling?
Possible Cause for High Sub cooling?
How to measure the Sub cooling?
Diagnosis use Sub cooling.
what is the Normal Sub cooling Range?
Important points to Take note.

HVAC-R -BE PROFESSIONAL

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Really appreciative job for cooling or heating world Technician

jameelSirITI

One of the best Great video information 👍❤ thank you for sharing your knowledge 💯❤🇵🇭

JaykeSapalaran-iqqs

As liquid enters expansion valve, some flash gassing occurs to effectively cool the liquid down to evaporator saturation temperature. This flash gas does not contribute to evaporator cooling therefore is efficiency loss. Larger amount of subcooling is advantageous for this particular aspect, but ...

Higher subcooling reduces condenser effective area for cooling refrigerant hot vapor which exchanges heat to air flow much better than cooled, condensed liquid refrigerant due to the greater temperature difference in condensing hot gas to air flow through condenser. Higher subcooling on output of condenser raises compressor discharge gas temperature/pressure and can increase load on compressor causing more compressor electrical consumption, which is an efficiency loss.

Higher SEER units often accomplish their increased efficiency by using a larger condenser. Larger condenser usually holds more refrigerant so there is greater volume of liquid refrigerant margin allowing them to run at lower subcooling levels.

Large condensers can cause problems with compressor input flooding in off mode due larger refrigerant system loads. Many systems with large condensers shut down expansion value when compressor is shut down and rely on compressor discharge check valve to trap liquid refrigerant between compressor check valve and shut off expansion valve. Once condenser cools down in off mode, most of liquid will stay in condenser during off mode even when there is some leaking of check valve and shut down expansion valve. This greatly reduces possible liquid flood back to compressor input during off mode by keeping most of liquid refrigerant in condenser during off mode.

rcinfla

Line ( dome line) represents saturated liquid or saturated vapor?
and
everything within the dome is also saturated liquid or saturated vapor?
And
Left & right of the dome is sub cooled liquid and super heated vapor respectively?

Please verify?
Thank u

gooddeedsleadto