We present a thermo-economic analysis of an Organic Rankine Cycle (ORC) for waste heat recovery. A case study for a heat source temperature of 150 ̋C and a subcritical, saturated cycle is performed. As working fluids R245fa, isobutane, isopentane, and the mixture of isobutane and isopentane are considered. The minimal temperature difference in the evaporator and the condenser, as well as the mi...

Heat pump electricity costs grow with a power relationship as the evaporator temperature in cycle decreases. The thermo-economic study of solar thermal-assisted heat and storage system determines minimum cost coupled for an temperature. Through two case studies, one dairy industry other 2G bioethanol production, was evaluated different temperatures evaporator, from 30 to 90 °C, determined. For ...

The thermodynamic and economic suitability of four geothermal power systems is analyzed. When the heat source temperature ranges from 100-150?C, performance indicators capacity per unit geo-fluid, exergy efficiency, payback period, net present value internal rate return for types system are calculated. results show that when increases geo-fluid single flash, organic rankine cycle (ORC), double ...