METEO 300 Lecture Notes - Lecture 19: Conservation Of Mass
Document Summary
Me 300 - lecture 19 - steady flow devices. Diffuser: purpose is to decrease speed. (opposite nozzle) Throttle (valve): purpose is to control flow rate of mass. inlet nozzle outlet. *if increases, has to decrease in order to maintain the equality. outlet inlet inlet diffuser outlet. Saturated liquid water (x=0) at 1 mpa enters a throttle. At the throttle exit, the pressure is 0. 1 mpa. Determine the density ratio between the throttle entrance and exit. The initial pressure is 1 mpa and x = 0, this means 1 = = 762. 52 kj/kg. Density can also be found on the saturation table, = = 887. 15 kg/m3. For a throttle, we know that 1 = 2 = 762. 52 kj/kg. Comparing this value to and at a pressure of 0. 1 mpa, you should find that water is a mixture and = 0. 153. You should be able to calculate for the density by using the quality relationship and find that 2 = 3. 845 kg/m3.
