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@sintiania4339 Ай бұрын
Good day sir what is the range of subcooling and super heat in cold room freezer and chiller thanks
@instituteofrefrigerationUK 28 күн бұрын
Good afternoon, we've been told by one of our technical expert "There is not one size fits all, most DX evaporator expansion valves would normally look to control 4-8k of superheat, subcooling is not controlled as such but you would expect to see between 2-5k of subcooling on simple systems. ". Hope this helps!
@SamuelGrills 2 ай бұрын
Someone gave her a yapachino. Eagle 4lyf 😂
@priyapandiyanpandiyan3564 4 ай бұрын
Not understand totally
@instituteofrefrigerationUK 4 ай бұрын
Let us know where you'd like clarifications, we'd love to help.
@AngelRodriguez-qg5zq 4 ай бұрын
Excellent explanation. I have always had the doubt of how exactly the temperature of the outside air affects the increase in the saturation temperature in the condenser.
@instituteofrefrigerationUK 4 ай бұрын
We're very happy that this helps! You can check out the entire presentation at ior.org.uk/events/ior-masterclass-june24
@nikoschazapis2379 5 ай бұрын
GREAT PRESENTATION !!
@instituteofrefrigerationUK 4 ай бұрын
Thank you!
@craiggirdlestone8663 8 ай бұрын
Dr Cotter identified probably the core to the energy issues that can be easily addressed with the improvement to maintenance as the largest impact on achieving net zero and improving Global heating. Training is also a major problem in the UK with a very limited route for training designers and an F-Gas qualification which is currently inadequate to be considered as a sole qualification for Refrigeration Technicians.
@tonyp6088 9 ай бұрын
Hi there, great demonstration. If you were to take the liquid line temperature just before the metering device would there be much difference? Would it continue to subcool?
@instituteofrefrigerationUK 9 ай бұрын
The reason for taking the temperature of the liquid on the ambient side of the cooled space (e.g. as the pipe enters the cold room) is to calculate the subcooling that has occurred because of the outside ambient conditions. You can measure the liquid line before the expansion device, this would then include the subcooling that has happened due to the liquid line entering the cooled space, care should be taken to ensure the expansion device temperature drop (happening due to the refrigerant expansion) does not influence the temperature of the liquid, line so suggest measuring no closer than 150mm to the inlet to the expansion (metering) device. The other reason for measuring the pipe on the ambient side is that evaporators can sometimes be difficult to access (loaded room, mounted high on room ceilings etc), whereas you can normally access the liquid line service on the roof or outside of the cooled space.
@craiggirdlestone8663 Жыл бұрын
I really like the touching and seeing experience for students, I understand your comments on fragility
@muhammadrizwanjan1984 Жыл бұрын
Sir I want to know that one of systems cooling 20000 ltr water 15c to 14c in 15 minutes, it's cooling capacity?
@raquelsapalaran2907 Жыл бұрын
thank you very much for sharing your knowledge.
@texture6 Жыл бұрын
Could you show the formula. I did my own division and how did you get 5.8k
@instituteofrefrigerationUK Жыл бұрын
Many thanks for your query. Here's the reply, we hope this will help 13 - 7.2 = 5.8 Evaporator exit temp minus saturated evaporating temp. = Superheat
@localchumb 21 күн бұрын
@@instituteofrefrigerationUK hi! is saturated temp another way of saying boiling point? knowing that would help me a lot. Also, why did we get the Suction pressure? I don't see it being used in the equation