1. T s boiler turbine pump work in work out heat out heat in condenser 1 2 3 4 superheated vapor saturated liquid & vapor compressed liquid critical point constant pressure lines Rankine Cycle 1 2 4 w pump,in w turb,out q cond,out q boiler,in 3

2. 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:

3. 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 http://www.chemicalogic.com/_vti_bin/shtml.dll/steamtab/companion/download.htm 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.

4. T s 1 2 4 3b 3 Add Reheat boiler turbine pump work in work out heat out heat in condenser 1 2 3 4 3a 3b 3a

5. T s 1 2 4 3 7 5 6 Add Regeneration boiler high P turbine pump 2 condenser 1 2 3 4 low P turbine pump 1 open feedwater heater 5 6 7

6. boiler high P turbine pump 2 condenser 1 2 3 4 low P turbine pump 1 open feedwater heater 5 6 7

7. boiler high P turbine pump 2 condenser 1 2 3 4 low P turbine pump 1 open feedwater heater 5 6 7