Throttling High-Pressure Water

inlet temperature (°C)

227

outlet pressure (MPa)

0.1

Water at high pressure is allowed to expand to a lower pressure (throttled) through a partially closed valve. The exit stream is a vapor-liquid mixture appropriate for the pressure range. You can vary the inlet temperature

T

1

and outlet pressure

P

2

. The fractions of liquid and vapor in the exit stream are shown in the bar graph.