Masoud Khaleghi - Faculty Member-Sirjan, Iran
Seyyed Mohsen Jahandide - B.Sc. Student- Sirjan, Iran

Today, with a view to reducing the alarming global energyresources, countries are trying to optimal use of energyresources, for this reason the researchers have consideredthe analysis of the second law along the first law. In thisresearch, we have tried using the second law analysis(Qualitatively) to investigative Rankine cycle with reheat,by using Exergy-Topology method. This method has amodelling that which one of them checks the problem fromthe perspective of input and output Exergy, and the otherchecks from the view of available Exergy and used Exergy.Each of these views has parameters to evaluate the system,that for obtaining them, there have been providedrelationships. Intended Rankine cycle works with R113operator fluid. Finally, with investigate the specificparameters of the system such as Evaporator pressure andtemperature of the inlet hot gas, we have tried to reduceexergy loss and enhance efficiency. The significant resultsof the evaporator inlet hot gas temperature testify on systemperformance.

Rankine cycle, ORC cycle, Reheat, Exergy-Topology, Optimization, Efficiency, Modelling