About this Abstract |
| Meeting |
MS&T25: Materials Science & Technology
|
| Symposium
|
Energy Materials for Sustainable Development
|
| Presentation Title |
Cascade Organic Rankine Cycle (ORC) power production systems using a low-temperature heat source. |
| Author(s) |
Faith Uchenna Babalola, Taiwo Yusuf Arowora, Oluwatobi Gideon Oyinlola |
| On-Site Speaker (Planned) |
Faith Uchenna Babalola |
| Abstract Scope |
The Organic Rankine Cycle (ORC) is a thermodynamic cycle that uses organic working fluids to transform heat into electricity through mechanical work. The performance of the ORC employing five working fluids was analyzed. The selected organic fluids could produce power from a low-temperature heat source; specifically solar heat between 25 oC-32 oC to avoid problems with condensation. The system performance indices (system efficiency, work output, and power output) were calculated using a commercial software named IPSEpro, which adopted an expander model and took pipe and heat exchanger pressure drops into account. R123 as the only working fluid in the three-stage system gave a power output 33.3% higher than that of the two-stage cycle which was 26.7% higher than the single-cycle system. The best working fluid combinations for two-stage and three-stage systems were shown to be R123+R245ca and R123+R245ca+R601a respectively. |