Nita CV Monintja, Rudy Soenoko, Slamet Wahyudi, Judy Suryairawan
Basically alternative energy sources would not ended for the foreseeable future, alternative energy is not only needed but, to be considered, how to transform energy from one form of energy to another form of energy without causing pollution that will harm the environment. One of the alternative energy is the water potency. In Indonesia, especially the potential of the river water is very big. The enormous potential energy from river water flow is the water kinetic energy due to the flow velocity. The energy crisis could be solved by managing and implementing these potential rivers water velocity. The purpose of this study is to obtain the optimum performance of the bowled blade kinetic turbine. The method used in this study is an experimental research and the turbine research object, were made on a laboratory scale. The kinetic turbine tested is a turbine with an eight bowled bladed. The Response Surface Method was used to obtain the optimum turbine performance mathematical equation. The independent variables used in this study were the flow steering angle variation, which is 15°, 25°, 35°. While the water flow rate variation are 50, 55 and60 m3/h and the turbine rotation variation are 30, 40 and 50 rpm. From the observation and analysis it is obtained a Full Quadratic Empirical Model Testing for turbine power generation. Based on the analysis response surface model a mathematical model was found which is: Y = 1, 38 - 1, 13X1 + 0, 07X2 + 0, 445X3 + 0, 97X1 2 + 0, 42X2 2 + 0, 85X1 2 - 1, 43X1X2 - 0, 09X1X3 - 2, 16X2X3, and the turbine efficiency full quadratic model based on the analysis of the response surface models a mathematical model was derived: Y = 14, 28 + 3, 38X1 - 0, 661X2 + 1, 6X3 - 2, 5X1 2 - 0, 2199X2 2 - 0, 355X3 2 + 2, 73X1X2 - 3, 2X1X3 - 2, 29X2X3. Where X1 = water flow steering angle (°), X2 = water flow rate (m3/jam), and X3 = turbine rotation (rpm). © Research India Publications.
Brawijaya University, Mechanical Engineering Department, Engineering Faculty, Malang, 65145, Indonesia
