Francis turbine Model of a reaction turbine with speed and torque measurement; adjustable guide vanes Features - Francis turbine with visible operating area - closed water circuit and data processing software for use with the HM 450C trainer Learning objectives/experiments - determination of mechanical output - determination of efficiency - recording of characteristic curves - investigation of the influence of the guide vane position on the power output - velocity triangles Specification [1] recording the curves of a Francis turbine and investigating the influence of the guide vane position [2] transparent front panel for observing the operating area [3] adjustable guide vanes for setting different angles of attack [4] loading the turbine by use of the adjustable band brake [5] recording the torque via band brake and force sensor [6] pressure sensor at the turbine inlet [7] speed, torque and pressure displayed on the switch cabinet of HM 450C [8] water supply, flow rate measurement and data processing software via HM 450C Technical data Turbine - output: approx. 350W at 1500min-1, 270L/min, H=15m - max. speed: 3000min-1 - rotor -- 11 blades -- medium diameter: 60mm - distributor -- 7 guide vanes -- angle of attack: 0...20° Measuring ranges - torque: 0...9,81Nm - pressure: 0...4bar abs. - speed: 0...4000min-1 LxWxH: 510x490x410mm Weight: approx. 38kg