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- When the refrigerant in an air-conditioner goes through the metering device, the metering device lower the pressure of the refrigerant a great deal and the refrigerant turns into a mixture of 75% liquid, 25% flash gas. How does lowering the pressure of the refrigerant cause 25% of the refrigerant to turn into flash gas?
When refrigerant enters the metering device of an air-conditioner, the refrigerant enters the metering device as 100% liquid. When the refrigerant in a straight air-conditioner goes through the metering device, the metering device lowers the pressure of the refrigerant a great deal. The refrigerant leaves the metering device as 75% liquid and 25% flash gas. Since the only thing that the metering device directly does to the refrigerant is lower the refrigerant's pressure, I think that the metering device's lowering the pressure of the refrigerant must be what causes 25% of the refrigerant to turn into flash gas immediately after the refrigerant leaves the metering device.
But outside of metering devices in air-conditioners, I have never heard of lowering the pressure on a liquid causing part of the liquid to change phase from liquid to gas. I don't think that the ideal gas laws would explain why lowering the pressure on a liquid would cause part of the liquid to turn into a gas because the ideal gas laws don't apply to liquid, as far as I know.
In an air-conditioner, why does the metering device's lowering the pressure of the liquid refrigerant cause 25% of the liquid refrigerant to change phase into gas?
If there is a "Law" of physics with a name that explains this, what is the name of this law of physics?
But outside of metering devices in air-conditioners, I have never heard of lowering the pressure on a liquid causing part of the liquid to change phase from liquid to gas. I don't think that the ideal gas laws would explain why lowering the pressure on a liquid would cause part of the liquid to turn into a gas because the ideal gas laws don't apply to liquid, as far as I know.
In an air-conditioner, why does the metering device's lowering the pressure of the liquid refrigerant cause 25% of the liquid refrigerant to change phase into gas?
If there is a "Law" of physics with a name that explains this, what is the name of this law of physics?