We add superheat and reheat to the cycle above. Steam enters thefirst turbine st

We add superheat and reheat to the cycle above. Steam enters thefirst turbine stage at 8 MPa 480oC and leaves at 0.7 MPa. It isreheated to 440oC and enters the second turbine stage where it isexpanded to 0.008 MPa. Saturated liquid leaves the condenser at0.008 MPa. The turbines and pump again have isentropic efficienciesof 85% and the plant has 100 MW net power. Find: a) (6 points)Draw a system diagram and label all the components. Number theflow starting with a 1 at the pump inlet. b) (6 points) Draw a T-sdiagram for the isentropic and actual process. c) (6 points) Themass flow rate of the working fluid (steam). Compare to the answeryou got in problem I. Is it less the same or greater? d) (6points) The actual thermal efficiency of the cycle. Compare to theanswer you got in problem I. Is it less the same or greater? e) (6points) Calculate the mass flow rate of the cooling fluid (assumesubcooled water with a Cp of 4.184 kJ/kgK) ) if this cooling fluidenters the condenser at 15oC and leaves at 25oC.

You can leave a response, or trackback from your own site.
error: Content is protected !!