Studi eksperimen kinerja turbin vortex berbasis gravitasi dengan sudu backward dan forward

Nowadays, the use of hydro energy in Indonesia is still focused on large-scale hydropower development which has negative effects environment such as changes natural flow rivers, disruption population aquatic biota that live these watersheds and risk potential disasters if dam fails. In fact, from mini-micro source 19,835 MW, but its utilization very low around 100 MW. Therefore, extraction water form rivers irrigation channels with head altitude differences considered important urgent so a gravity vortex turbine-based mini / micro research proposed. Specifically, this study aims to analyze performance turbine backward forward blades conical basin through laboratory experimental devices. Experiments were carried out fluid rate 120 liters per minute (lpm) lpm by loading using prony brake dynamometer order obtain torque data variations blade rotational speed. experiment, results showed was superior optimal efficiency reaching 36.7% at discharge rotating speed 80 rpm than only able achieve highest 33.19%.