He uses the term throttling valve which is correct but I believe it is the same as an expansion valve used in the refrig cycle and in the refrig. cycle the substance being used for a refrigerant has just left the condenser where it was condensed from a gas to a liquid. It is now under high pressure and of course saturated from the phase transformation. If you look want to see a great representation of this look up Basic Refrigeration Cycle by AC Power Web. They have an excellent pictorial with verbiage that should help. Good luck. Rick T.
@3:25 How do you know that the fluid entering the valve is at saturation (i.e. quality = 0)?
yea can you please explain that @navier thanks
He uses the term throttling valve which is correct but I believe it is the same as an expansion valve used in the refrig cycle and in the refrig. cycle the substance being used for a refrigerant has just left the condenser where it was condensed from a gas to a liquid. It is now under high pressure and of course saturated from the phase transformation. If you look want to see a great representation of this look up Basic Refrigeration Cycle by AC Power Web. They have an excellent pictorial with verbiage that should help. Good luck.
Rick T.
So yes at this point in the cycle the quality is 0. There is 0% vapor in a saturated liquid and 0% liquid in a saturated vapor.
Is it possible to have such a question in the exam, I mean it is hard to deal with an e-version of the chart
HI thanks for yr video could you please make video about the steam table