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Products  |  Fluid Mechanics  |  Hydraulic Fluid Energy Machines  |  HM 430.C0
HM 430C Francis Turbine Trainer Show data sheet (pdf file) Print page
HM 430C - A product from the GUNT 2E range
Technical Description

  The Francis turbine is part of the reaction turbines which convert the pressure energy of the water into kinetic energy in the control device and in the impeller. Francis turbines are used for medium heads. The turbine power is controlled by adjusting the vanes in the control device. In practice, Francis turbines are used in run-of-the-river power stations and in storage power stations.

  HM 430C enables you to examine the function and operating behaviour of a Francis turbine. The dimensions of the trainer guarantee for realistic measured values. The closed water circuit consists of a tank with cooling circuit, a centrifugal pump with drive and a flow control valve for adjusting the inlet pressure. The transparent housing cover makes it possible to view the running turbine in an optimal way. The transparent cover enables you to observe the water flow, the wheel and the guide vanes during operation. The angle of incidence, the cross section and thus the power output of the impeller are changed by adjusting the guide vanes. The turbine is loaded with a DC generator with current converter. The DC generator is force-ventilated. A speed-controlled pump provides for an energy efficient operation.

  The speed is recorded by means of an inductive, non-contact position sensor at the motor shaft. For determining the drive power, the drive motor is equipped with a pendulum bearing and with a force sensor for measuring the driving torque. The pressures at the inlet and outlet of the

turbine, the temperature and the flow rate are recorded with sensors. The recorded measured values are displayed digitally and processed further in a PC. The PC is used to calculate the power output data of the examined turbine and to represent them by characteristic curves.

  The well-structured instructional material sets out the fundamentals and provides a step-by-step guide through the experiments.


Learning Objectives / Experiments

- investigation of the conversion of hydraulic into

  mechanical energy
- determination of torque and speed at the turbine

- determination of mechanical power and hydraulic

- determination of efficiency
- recording of characteristic curves
- investigation of the influence of the guide vane

- velocity triangles


* Experimental set-up with closed water circuit1
* Mech. turbine power approx. 1,4kW at 1500min-11

* Optimal view of the running turbine1
* Speed-controlled pump for energy-saving operation1
* LabVIEW software for data acquisition

Alternative products
HM 365.31 -- Pelton and Francis Turbine
HM 450.02 -- Francis Turbine

[1] investigation of a Francis turbine
[2] closed water circuit with pump, motor, flow control valve and tank with cooling circuit
[3] three-phase motor for pump with speed control via frequency converter
[4] adjustment of flow rate via flow control valve
[5] loading the turbine by use of the DC generator
[6] Impeller and control device of the turbine completely visible
[7] adjustable guide vanes for setting different angles of incidence
[8] non-contact speed measurement at the motor shaft and force sensor for measuring the driving torque  
[9] digital display for temperature, flow rate and pressures (additional manometer within scope of supply), speed and torque
[10] LabVIEW software for data acquisition via USB under Windows XP or Windows Vista


Technical Data

Francis turbine
- P hydraulic: 2,1kW at 1500min-1
- P mechanical: approx. 1,4kW at 1500min-1
- impeller, external diameter: 120mm, 15 vanes
- 10 guide vanes
Centrifugal pump, multistage
- electric output: 5,5kW
- max. flow rate 960L/min
- pump head 45m
Drive motor, speed-controlled
- speed: 500...3000min-1
DC generator
- as brake: 1,5kW at 1500min-1
- speed: 500...2500min-1
Tank: 550L


Measuring ranges
- temperature: 0100C
- pressure (at turbine inlet): -1...1bar
- pressure (at turbine outlet): 0...6bar
- flow rate 0..3000L/min
- torque: 0...20Nm
- speed: 0...9999min-1


Dimensions and Weight
LxWxH: 2350x1050x2050mm
Weight: approx. 370kg
Required for Operation
400V, 50Hz, 3 phases
Scope of Delivery

1 trainer

1 CD with LabVIEW software + USB cable
1 set of instructional material

Order Details
070.430C0  HM 430C  Francis Turbine Trainer
© 2005 G.U.N.T. Gerätebau GmbH