Bagus Wahyudi, Akhmad Faizin, Sudjito Suparman
Waterwheel has been developed over two millennia to be efficient hydraulic machine but have weaknesses due to his inability to increase the torque although the flow of water has been increased - because the efficiency of this water wheel is only dependent on the volume of buckets and gravitational those are always constant. In this study demonstrated a new method to improve the torque of overshot waterwheel (OWW) by recapturing overflow of water from the buckets and the excess flow from the channel to be converted into kinetic energy through the nozzle and then squirt against to the curve vane in the buckets by using hydraulic ram pump system. The result of performance test proved that OKDN using hydraulics ram able to improve their efficiency more than conventional overshot wheel. © (2013) Trans Tech Publications, Switzerland.
Mechanical Engineering Department of State Polytechnic of Malang, Indonesia; Mechanical Engineering Department of Brawijaya University, Malang, Indonesia
