A solar-thermal power plant uses ideal Rankine with R-134a. Mass flowrate is 5000 kg/s. The sat. vapor enters the turbine at 80 C and the condensor pressure is 8 bar. The useful power output from the solar collector to the R-134a is 300 W/sqm.
1. At each stage, find pressure, temperature, specific volume, specific internal energy, and phase (sat. vap., L-V, etc.)
2. Calculate net power output
3. Calculate heat transfer rate from solar collector to R-134a
4. Required solar collector area
5. Thermal efficiency
6. Is this plant impossible - i.e., does it exceed any efficiency limits (e.g., Carnot)