Waste Heat Recovery System (WHRS) technology, e.g., Organic Rankine Cycle (ORC) has been explored as a solution to the increase in geothermal potential, possibly applied in binary or combined form, as a single-flash plant. This approach utilizes waste brine obtained from the separator. The purpose of this study, therefore, was to determine the performance of R134a refrigerant on ORC systems, using scroll-expander. The experiment was conducted with motor different frequency, at 7.5 Hz, 10 Hz, 12.5 Hz, 15 Hz, 17.5 Hz, and 20 Hz, evaporator temperature regulation of 95 °C, condenser at 10 °C, and an initial working fluid pressure of 5 bar. The results showed modifications in the ORC system performance with scroll-expander, alongside the motor frequency, which influenced the net power and energy efficiency. In addition, the maximum speed produced by the expander was 505.8 rpm, while the highest for energy efficiency achieved from the system was 3.17%, at a motor frequency of 7.5 Hz, with a resulting net power of 584.5 Watt.

废热回收系统 (WHRS) 技术，例如有机朗肯循环 (ORC)，已被探索作为地热潜力增加的解决方案，可能以二元或组合形式应用，作为单闪蒸工厂。该方法利用从分离器获得的废盐水。因此，本研究的目的是使用涡旋膨胀机确定 R134a 制冷剂在 ORC 系统上的性能。实验采用电机不同频率，7.5Hz、10Hz、12.5Hz、15Hz、17.5Hz和20Hz，蒸发器温度调节95℃，冷凝器10℃，初始工作液压力为5 巴。结果表明，使用涡旋膨胀机的 ORC 系统性能以及电机频率发生了变化，这影响了净功率和能源效率。此外，