THER Propane vapor flows through a well-insulated porous plug. At the inlet, the
ID: 2994866 • Letter: T
Question
THER
Propane vapor flows through a well-insulated porous plug. At the inlet, the specific enthalpy is 565.2 kJ/kg, the pressure and temperature are 10 bar and 60 degree C, respectively. At the exit, the pressure is reduced to 5 bar. What is the specific enthalpy at the exit? Which of the following statements is correct for a liquid flowing in an adiabatic pump? The inlet enthalpy is less than the exit enthalpy The flow is isenthalpic The inlet enthalpy is greater than the exit enthalpy The flow is compressible Which of the following statements is correct for a diffuser? Kinetic energy at the inlet is greater than kinetic energy at the exit Effects of potential energy and kinetic energy are negligible If it is adiabatic, then there is no change in enthalpy Exit velocity is greater than inlet velocity Which of the following assumptions can be possible for a gas flowing through a throttling device? Isenthalpic process Adiabatic process Ideal gas All of the above Steam enters a well-insulated turbine at a specific enthalpy of 3177.2 kJ/kg, 60 bar, and 400 degree C. At the exit, the pressure is reduced to 0.1 bar. What could be the specific enthalpy at the turbine exit?Explanation / Answer
1 (a) because in a porous plug it is isenthalpic process, no change in enthalpy.
2 (a) becuase we need to give power to run apump which increses its enthaply and it is isentropic.
3 (a) inlet velocity is much much greayter than exit velocity
4 (c) isenthalpic as enthalpy doesnt change in throttling and it is adiabatic too
5 (d) becuse enthalpy must decrese in turbines
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.