Cyclo butane can be used as a working fluid for an organic rankine cycle (ORC). Let us design an ORC working on renewable solar energy. If ambient temperature is 30C and a concentration solar system of fluid heating to 150C, then design an ORC using cyclo butane. If the pump and turbine has an efficiency of 70%, then determine the energy output of the cycle. Can we design ORC having boiler temperature above critical point of cyclo butane (assume concentration solar system can achieve supercritical temperature)? What will be advantages and disadvantages of such a system Thermodynamic Diagram of Cyclo-butane 400 400 1 pris -6.895 kPa 1 BTUND - 2.326 kJAG 1 BTUAR - 4.187 kJ OK 300 300 700 F s-0.15 200 200 8.00 100 500 F 100 Enthalpy, BTU/b 5.0.06 o 300F -100 -100 100F -200 - 200 -100F -300 10 -300 10000 100 1000 Pressure, psia