What is under cooling and supercooling?
Answers were Sorted based on User's Feedback
Answer / satish
Super-cooling may happen if a liquid is very gradually
cooled and stirred very, very gently. In such events, the
liquid stays in liquid stage (phase) well below it's
freezing point.
If such super-cooled liquid is disturbed or strongly
agitated, it suddenly freezes!
Have witness this happening too
Is This Answer Correct ? | 21 Yes | 8 No |
Answer / srikar
Undercooling is same as supercooling.
The liquid is cooled below its freezing point without solidification.
But how is this possible?
Ans : Just imagine icecube tray. What happens if u remove the tray premeturely? U can observe small ice flakes floating on water. Take a spoon and stir it and note temperature. You can see that the temperature of the ice water is still below the freezing point but it is still in liquid form.
Hope you got convinced.
Is This Answer Correct ? | 8 Yes | 5 No |
Answer / karthick
subcooling and super heating are used as a view to increase
the COP of refrigertaion.Subcooling is used to extract the
sensible heat from the saturated liquied to ensure that
that the refrigerant is not having any partial vapour
pressure in that.So now only saturated liquid is allowed to
expand inside the expansion valve.as a result of this COP
increases
Is This Answer Correct ? | 2 Yes | 9 No |
Answer / hiren kathrotiya
under cooling means cool liquid up-to freezing temp.(e.g. 0
degree for water) and if we further continue to cooling then
cooling beyond freezing temp. is called super cooling.(e.g.
decrease water temp. 0 to -20 degree)
Is This Answer Correct ? | 2 Yes | 9 No |
What is hertz in electrical system?
What are the different types of pumps? and their usage.
lim x tends to 0 sin4x/x
Name the only five parts of lathe machine?
why involute curve corve used in gear
Difference between ovality
What is max pressure?
Which parameter remains constant in isochoric process ?
What is the full form for KGF in the pipe or sheet thickness.
if any body selected in bhel et oct 08'pl tell me how to be selected
What causes friction in the cylinder?
I want technical questions of previous reqruitment examination