10 October 2017 1 4K Report

We are pumping liquid through a pipe. After a pipe length, the flow area of pipe is reduced. As per bernoulli's equation, the velocity of flow will increase and pressure will decrease. In case the pipe area is reduced to a very low value then can the decrease in pressure due to reduction in flow area result in vaporization of liquid? Is this the working principle behind expansion valves used in refrigeration industry?

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