Regenerative Rankine Cycle

Cycle data

Known properties

Water is used as working fluid;
Pressure passing through the condenser of 10 kPa;
Pressure going to the mixing chamber of 100 kPa;
Boiler pressure of 1000 kPa;
Temperatures after leaving the boiler of 250 °C.

Input code

using CycleSolver

@solve begin
    st3.T = 250 + 273
    st3.p = 1000
    st4.p = 100
    st5.p = 10
    
    newCycle[]
        pump(st1, st2)
        boiler(st2, st3)
        turbine(st3, [st4, st5])
        condenser(st5, st6)
        pump(st6, st7)
        heater_open([st7, st4], st1)
end

PrintResults()

Output:

1- CYCLE [water]

State Name	T [K]	P [kPa]	h [kJ/kg]	s [kJ/kg.K]	x	Mass-flux fraction
st1	372.756	100.0	417.504	1.3028	0.0	1.0
st2	372.818	1000.0	418.443	1.3028		1.0
st3	523.0	1000.0	2942.79	6.9258		1.0
st4	372.756	100.0	2513.54	6.9258	0.9285	0.0972
st5	318.956	10.0	2193.78	6.9258	0.8369	0.9028
st6	318.956	10.0	191.806	0.6492	0.0	0.9028
st7	318.959	100.0	191.897	0.6492		0.9028

Cycle Properties:

	Total	Component	Value
qin Q̇in	2524.3482 kJ/kg 0.0 kW	boiler: st2 >> st3	2524.3482 kJ/kg
qout Q̇out	2001.9783 kJ/kg 0.0 kW	condenser: st5 >> st6	2001.9783 kJ/kg
win Ẇin	1.0296 kJ/kg 0.0 kW	pump: st6 >> st7 pump: st1 >> st2	0.0909 kJ/kg 0.9387 kJ/kg
wout Ẇout	717.9338 kJ/kg 0.0 kW	turbine: Any[: st3] >> Any[: st4, : st5]	717.9338 kJ/kg

Regenerative Rankine Cycle

Output:

1- CYCLE [water]

Cycle Properties:

Thermal efficiency (n) = 28.3996 %