1 / 5

Lecture 15

Lecture 15. Nozzles/Diffusers, Valves, Heat XGERs. The Laws of the Universe. Conservation of Mass – The Continuity Equation. Conservation of Energy – The First Law of Thermodynamics. Steam Whistle.

luther
Télécharger la présentation

Lecture 15

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. Lecture 15 Nozzles/Diffusers, Valves, Heat XGERs

  2. The Laws of the Universe Conservation of Mass – The Continuity Equation Conservation of Energy – The First Law of Thermodynamics

  3. Steam Whistle 6.13 A steam whistle is devised by attaching a simple converging nozzle to a steam line. At the inletto the whistle, the pressure is 60 psia, the temperature is 600°F, and the velocity is 10 ft/s. The steamexpands and accelerates horizontally to the outlet, where the pressure and temperature are 14.7 psia and 500°F. Determine the stem velocity at the whistle outlet. Assume the process is adiabatic, aergonic,and steady flow.

  4. Throttling Valve 6.19 Wet steam is throttled adiabatically and aergonically from 800 psia to 5 psia and 200°F. If the inlet and exit velocities and heights are equal, what is the ratio of the exit area to the inlet area for this device?

  5. Feedwater Heater 6.30 The steady state, steady flow, adiabatic, aergonicfeedwater heater shown is used in an electric power plant. It mixes superheated steam with saturated liquid water to produce a low-quality outflow, in which 10 lbm/s of superheated steam at 80 psia and 500°F is mixed with saturated liquid water at 80 psia. The outlet stream has a quality of 10% at 80 psia. What is the mass flow rate of the saturated liquid water flow stream?

More Related