In order for a gas to be condensed in to a liquid pressure needs to increase, right?
But I am a little thrown off by a TBR passage that describes an engine with a condenser saying that the gas expands and cool, and it goes from vapor --> liquid.
I get the part where air cools while it expands, but it doesn't make sense to me that a vapor would be condensed into liquid under a lower pressure.
According to TBR's explanation:
Can someone please explain how does this work? 🙂
(I can add more details of the passage if needed. Thanks)
But I am a little thrown off by a TBR passage that describes an engine with a condenser saying that the gas expands and cool, and it goes from vapor --> liquid.
I get the part where air cools while it expands, but it doesn't make sense to me that a vapor would be condensed into liquid under a lower pressure.
According to TBR's explanation:
This results in the pressure in the condenser being lower than the pressure in the piston. Because of the pressure differential between the piston chamber and the condenser, steam flows from the piston through the exhaust port and into the condenser (from a region of higher pressure to a region of lower pressure).

Can someone please explain how does this work? 🙂
(I can add more details of the passage if needed. Thanks)