Simple vapor power plant (thermo I)

[megr_ftw]

I have a simple vapor power plant with a boiler, turbine, condenser and pump. I have the pressures leaving the boiler, entering the turbine, leaving the turbine and entering the condenser, leaving the condenser and entering the pump. I also have the temps for the above except I have the quality of leaving the turbine and entering condenser. Also have the pump work.

Okay so if that makes any sense, don't I need the mass flow rate or velocity of any of them in order to find the heat transfer between the boiler and turbine? So far I focused on the turbine and found the different enthalpy values for the input and output and I am trying to fine the work_out for the turbine. What should I assume in this problem? m1=m2 (flow rate)??

 

[h2oski1326]

So you have all of the information to get your state points. You also have one work value. Assuming you have calculated all of the enthalpy values for the cycle how can you use the work input to the pump to calculate the flow rate for the cycle? Do an energy balance (i.e. 1st law analysis) on each component to find out.

Is the flow rate constant throughout the entire cycle? Do a mass balance on each component to find out.

Hope this helps.