Abstract—Continuing the previous study about cross flow savonius vertical axis turbine (CROSSVAT) which has the disadvantage of producing side impact in the form of negative torque, this study was using with a horizontal shaft design to improve that weaknesses. This study introduces the new model of Hydrokinetic Cross Flow Savonius Horizontal Axis Turbine (CROSSHAT) using a pair of savonius tandem blades (STB) placed in the center of rotor. The flow coming from the nozzle will first strike the blade on the outer rotor, then crosses inside through the STB, then strike again to the savonius blade. The aim of developing a new model of this turbine is to increase the torque which usually depends on water falling from upper side to the bottom side rotor by gravitation. Meanwhile, this new model using reversing blade also produces jet flow to strike on the concave side of the savonius blade on the center of rotor. Increasing the torque will be followed by increasing efficiency. The research methodology is experimental testing and Response Surface Method (RSM). The variation of the operation of turbine testing is (a) angle of inlet nozzle (α), (b) Head (H), (c) Flow Rate (Q), and Power (P) as the response variable. Based on experimental result, RSM optimization, and analytical review, the optimum value of operating variables were found. 
 

Index Terms—cross flow, horizontal axis, savonius tandem, nozzle angle, RSM

Cite: Bagus Wahyudi, Wirawan , Sarjiyana , Moh. Hartono , Satworo Adiwidodo, "The Experimental Study of Hydrokinetic Cross Flow Savonius Horizontal Axis Turbine (CROSSHAT TURBINE)" International Journal of Mechanical Engineering and Robotics Research, Vol. 8, No. 6, pp. 966-971, November 2019. DOI: 10.18178/ijmerr.8.6.966-971