| dc.description.abstract | Peanuts (Arachis hypogaea L.) are an important agricultural commodity in Indonesia, playing a significant role in the food industry and economy. However, the manual threshing process requires substantial time and labor, reducing efficiency and productivity. To improve the threshing process efficiency, the use of threshing machines powered by electric motors and combustion engines presents a viable solution. This study aims to compare the efficiency and effectiveness of electric motors and combustion engines used in peanut threshing machines. Key performance parameters measured include effective capacity, energy consumption, fluctuation of speed rotation, unthreshed material, and yield. Eight trials were conducted for each motor type, and the results were analyzed using a two-sample t-test to determine any significant differences. The study results show no statistically significant difference in the effective capacity between combustion engines and electric motors, indicating comparable performance in terms of threshing capacity. However, electric motors proved to be far more efficient in energy consumption, with much lower energy usage compared to combustion engines. Fluctuation of speed rotation in electric motors was also more stable, though this difference was not statistically significant. In terms of unthreshed material, combustion engines performed better, with a lower average percentage of unthreshed material compared to electric motors, and this difference was statistically significant. Additionally, combustion engines had a higher yield than electric motors, and this difference was also statistically significant. Based on the study results, electric motors are recommended for use in conditions where energy efficiency and stability of speed rotation are crucial. Conversely, combustion engines are more suitable for situations requiring high effective capacity and yield. | en_US |
