T s boiler turbine pump work in work out heat out heat in condenser superheated vapor saturated liquid & vapor compressed liquid critical point constant pressure lines Rankine Cycle w pump,in w turb,out q cond,out q boiler,in 3

Energy Analysis Conservation of Energy (for steady flow): Apply to each device: Pump Boiler Turbine Condenser For State 1 and State 2, the working fluid is a liquid. Since water is basically incompressible, v 1 can be used here. Efficiency of the thermal cycle:

How and When to Use Steam Tables When the working fluid is on the T-s saturation dome curve, you can find all the properties of the fluid from a saturated steam table using just one state parameter (e.g. T or P). If you want an easy way to get steam properties, then download ChemicaLogic Steam Tab Companion When the working fluid is above the curve and to the left of the peak on the T-s plot, your working fluid is a compressed liquid and you can find all the properties of the fluid from a compressed liquid water table using two state parameter (e.g. T and P, or P and s). When the working fluid is above the curve and to the right of the peak on the T-s plot, your working fluid is a superheated gas and you can find all the properties of the fluid from a superheated steam table using two state parameter (e.g. T and P, or P and s). When the working fluid is below the curve on the T-s plot, your working fluid is a combination of saturated liquid and saturated gas. To find the properties of the fluid you will use the saturated steam table and the percent that is liquid.

T s b 3 Add Reheat boiler turbine pump work in work out heat out heat in condenser a 3b 3a

T s Add Regeneration boiler high P turbine pump 2 condenser low P turbine pump 1 open feedwater heater 5 6 7

boiler high P turbine pump 2 condenser low P turbine pump 1 open feedwater heater 5 6 7

boiler high P turbine pump 2 condenser low P turbine pump 1 open feedwater heater 5 6 7