Technical-economic Analysis of the Organic Rankine Cycle with Different Energy Sources

In this study, the thermodynamic and economical design of an organic Rankine cycle with different energy sources in Arak is investigated. R245fa, Isobutane, R114, R123, Isobutene and Toluene are considered as working fluid. The effects of organic fluids and pinch temperatures on the Rankine cycle performance were examined. The use of other energy sources such as solar energy, biomass, heat recovery from microturbine was Discussed and the cost of power generation was calculated. Isobutene has been selected as the operating fluid of the cycle for further investigation. According to the heat required by the Rankin cycle, the solar tower has been designed and estimated. The output power of the organic Rankine cycle using microturbine is increased by about 20%. The results show over 70% of the solar tower cost is related to mirrors. The highest cost of power generation is the use of microturbine, solar energy, biomass and hot water, respectively.