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8700816 
Journal Article 
Parametric Analysis of Dry Hydrocarbons on the Performance of Organic Rankine Cycle Improved by Working Fluid Reheating 
Eskandari Manjili, F; Dehghani, H; Shamekhi, L 
2015 
44 
8 
738-752 
English 
In this paper, the performance of organic Rankine cycle with a two-stage turbine and internal heat exchanger, considering different dry hydrocarbons as working fluid, has been analyzed. This thermodynamic analysis is done using Engineering Equation Solver version 8.379 software. The influence of working fluid reheating has been studied and the critical temperatures for the thermal and exergy efficiencies are determined. Results show that thermal and exergy efficiencies increase with working fluid reheating and also through a two-stage turbine. RC-318 is a good replacement for R-236fa, R-113 has a better efficiency than R-236fa, R-245fa, and iso-butane and finally cyclohexane can achieve the highest efficiency. Although the maximum value of efficiencies for each one of working fluids are different, but all of these maximum values almost happen at a unique value of relative pressure of the cycle. The same result has been presented for variation of turbine inlet temperature. 2015 Wiley Periodicals, Inc. 
Dry hydrocarbons; Efficiency improvement; Organic Rankine cycle; Reheater