Steam at 10 MPaa, 550 degrees celsius enters an ideal engine that has one stage of regenerative cycle; condenser pressure is 10kPaa and extraction of steam is at 1 MPa. Compute the following 8. Engine efficiency 9. Fraction of steam extracted from the turbine

The condensing pressure for a Rankine engine is 0.001325  MPavac. Calculate the following for steam flow rate  =  1 + (200/13) kg/sec of steam when the steam at the beginning of expansion is at 119.6 deg SH and 4.0 Mpaa.  Draw the TS and equipment diagrams for the ideal and actual case and find for the following for the ideal case: PV and TS diagrams of the cycle showing ideal and actual process lines Heat rejected at condenser (KJ/sec). Ans.____________________________ Mass of cooling water in kg/sec if cp H2O = 4.18 KJ/kg-K, and inlet temp of water to condenser = 20 deg C, outlet temp is 35 deg C. Ans.____________________________ Rankine engine efficiency (%). Ans.____________________________ Cycle thermal efficiency ( %). Ans.____________________________

In a reheat cycle steam at 15 MPa, 540 degrees Celsius enters the engine and expands to 1.95 MPa. At this point the steam is withdrawn and passes through a reheater. It reenters the engine at 540 degrees Celsius. Expansions now occur to the condenser pressure of 0.0035 MPa. Find the efficiency.

A boiler operates at a pressure of 3 MPa and exit temperature of 350°C for a simple rankine cycle. The condenser operates at 50 kPa. Assume simplified and ideal conditions. a. What is the mass fraction of saturated vapour leaving the turbine? b. What would be the value of the efficiency?