Effect of Sub Cooling on COP || GEAR INSTITUTE || Refrigeration and air conditioning

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It is shown that, as condenser subcooling increases, the COP reaches a maximum as a result of a trade-off between increasing refrigerating effect and specific compression work.
What is the effect of subcooling on COP?
In a refrigeration system, subcooling increases COP.
The method of subcooling involves lowering the liquid refrigerant's temperature below the condensing temperature for a specific pressure.
What is the effect of sub-cooling of condensate?
Increased sub-cooling gives a lower pressure drop over the expansion valve and thus increases the mass flow. On the cold side, a higher gas temperature causes the expansion valve to open, because it is interpreted as if the mass flow passing through the evaporator were too low.
What is the effect of high subcooling?
Higher subcooling indicates excess refrigerant backing up in the condenser. On TXV systems with high superheat, be sure to check the subcooling as refrigerant is added. If the superheat doesn't change, and the subcooling increases, the problem is with the metering device.
Does superheating increase COP?
Even though the refrigerating effect and the compressor work input increase with superheating, the increase in refrigerating effect is slightly more dominant, resulting in a slight increase in COP with superheating at compressor inlet.
What is the importance of subcooling?
The Importance of Subcooling
Generally, the lowest temperature a condenser can achieve, the better. In other words, the colder the refrigerant is as it flows into the evaporator coil, the more heat it will be able to absorb. In this regard, subcooling acts as a useful predictor of overall efficiency.
What causes high sub cooling?
What Should My Subcooling Be? - HVAC School
High Subcooling is an indication that more than the designed amount of refrigerant is “backing up” or “packed” into the condenser. This can be caused by overcharge, restriction (such as a contaminated line drier or kinked liquid line), or an undersized or failing closed metering device.
What is the effect of undercooling?
Effects of Under cooling: It can lead to engine damage, decreased engine performance. Increased fuel consumption result in lower fuel economy. Damage to cylinder head, cylinder & piston.
How to increase subcooling?
The difference between the measured liquid line temperature and the saturated condensing temperature is the liquid subcooling. Add refrigerant to increase subcooling. Recover refrigerant to reduce subcooling.
What happens if subcooling is too low?
When you receive a low or high subcooling reading, it all comes back to the refrigerant. For low readings, there is likely not enough refrigerant in the system. Weak compression, an inappropriate metering device, and undercharge can all cause this outcome.
Does subcooling increase efficiency?
What are the advantages and disadvantages of subcooling?
What is the effect of sub cooling on COP?
What is the effect of undercooling on COP?
What increases COP?
What is the effect of subcooling?
Is high subcooling bad?
What is the formula for subcooling?
Why is subcooling important?
Can subcooling be negative?
How does sub cooling affect a liquid?
What is the effect of cooling?
What is the effect of increasing undercooling?
Why is undercooling important?
How to check sub cooling?
What is a good range for subcooling?
Does subcooling increase capacity?
How do you adjust subcooling?
What is the effect of subcooling on system performance?
What is the degree of subcooling?
What is acceptable subcooling?
What is the formula for superheat?
What is a good subcooling level in Celsius?

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[@shaikhabdulqadir135]

excellent, one of the best video on basic of subcooling, very clear

[@Zamans2220]

Very good information sir thank you

[@amansoren6637]

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[@MohammadfirozKhan-lc1jo]

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[@ashisghosh9349]

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