| Performance analysis of the use of different fluids in an organic Rankine cycle system with an open feed water heater stage |
| Paper ID : 1437-NICAME1402 |
| Authors: |
|
Milad Soleimani *1, Sadegh Mirzamohammadi2 1Bachelor student, Department of Mechanical Engineering, Technical and Vocational University (TVU), Tehran, 2Assistant professor, Department of Materials and Metallurgical Engineering, Technical and Vocational University (TVU), Tehran, Iran. |
| Abstract: |
| Nowadays, due to the increasing consumption of non-renewable energy such as natural gas, the use of renewable energy has been considered. Organic Rankine cycle is a thermodynamic Rankine power generation cycle that uses an organic fluid to generate power. The organic Rankine cycle is one of the most widely used systems in the process industries (power plants) because in the process industries, as it has a lot of heat loss, with the help of the organic Rankine cycle, enough heat can be used to generate power and generate electricity. This article, using thermodynamic simulation, analyzes the performance of the organic Rankine cycle with an open feed water heater stage and selects the appropriate working fluid for this cycle. The cycle performance analysis is based on the first law of thermodynamics and using EES software. Fluids R11, R114, R245fa, R600, ammonia and methanol have been selected as working fluids. The effect of these 6 fluids on the overall efficiency of the cycle has been investigated. Thermodynamic and physical properties, earth destruction potential, earth warming potential, safety, availability, etc. are very important for choosing the working fluid. The results show that R114 fluid with 53.44% has the highest efficiency for the cycle, but in terms of safety level, the global warming potential is not at a suitable level. The most suitable fluid for this cycle according to all aspects (boiling temperature, density, input heat, thermal efficiency, ozone layer destruction potential, global warming potential and safety level classification of working fluids) is R245fa. |
| Keywords: |
| Organic Rankine Cycle (ORC), organic working fluid, thermodynamic analysis, power generation, EES |
| Status : Paper Accepted (Poster Presentation) |
