Energy, Exergy and Thermoeoconomic Analysis of Oil Pipeline

In this research, a 16-inch pipeline of Ahwaz-Rey oil transmission, 750 km long, was simulated using the Aspen Plus and Pipe Phase software to obtain outgoing flow data and equipment. Exergy analysis of pipelines and pressure boost stations were calculated to determine the exergy degradation. The lowest exergy damping with an approximate value of 34 kilowatts was obtained at Sheshmeh Shoor Station. Thermoeconomic analysis was performed to obtain the price of equipment, material flows, heat and work, as well as the price of feed and product flows, and to calculate the thermoeconomic coefficient in order to optimize the system economically. The highest price level was found at 0.00130 $ per second at the Sabzab pressure station. The highest thermoeconomic coefficient was obtained at 0.8477 at Cheshmeh Shoor station. The maximum value of this coefficient for pipelines was equal to 0.8745 between Astra stations and pole Baba. It was found that the increase in ambient temperature, operating pressure, mass flow rate, pipeline length and diameter increase the final cost.