STUDI EKSPERIMEN PENGARUH JUMLAH GUIDE VANE TERHADAP DAYA MEKANIK TURBIN FRANCIS
A francis turbine is one type of water turbine that serves to convert water energy into electrical energy. Peformance inprovements in the francis turbine are influance by seferal factors and one of them is the number of guide vanes Francis turbine is one type of water turbine that aims to convert water energy into electrical energy. Performance improvements in the francine turbine are influenced by several factors, and one of them is the influence of the number of guide vanes or commonly referred to as the steering angle which serves to direct the flow coming from the pipeline to the turbine runner. The presence of a guide on a francis turbine is essential for improving the performance of the francis turbine, since the guide vane is a major component of the francis turbine and with guide vane fluid flowing from the drain can be well directed towards the runner. The addition of the number of guide vane is used to obtain optimal results. The francis turbine testing system used to support this research consists of three variations of 5, 8, and 10 guides vane. From the results of this study obtained for the number of guide vane 5 by producing the largest mechanical power that is equal to 98,037 W, and for guide vane 10 produces 80,576 W while the guide vane 8 produces the highest mechanical power of 80.884 W. For the best overall performance is obtained from the number of guide vane 5 because the power generated is greater.