Heki has a test platform designed to perform detailed and high-quality studies for developing hydraulic turbines

Platform Characteristics

The hydraulic turbine test platform occupies an area of 350 m2 on three floors. The lower floor is occupied by the main supply tank built in waterproof concrete; it has a capacity of 270 m³. The test loop is set up on the other two floors.

Test Loop Operation

The test loop operates in open and closed circuits and can be adapted to reaction turbines (Francis, Kaplan or bulb) with diameters ranging from twenty-five to fifty centimetres. Its maximal capacities are :

Flow rate (Q) < 1m3/s
Water head (H) < 50m
Turbine rotation speed < 2 000 tr/min
Supplied power (P) < 225 kW

Water is delivered to the turbine through a semi-axial pump driven by a 260-kW variable speed motor. In a closed loop, water in the circuit is maintained at a constant temperature by heat exchangers that use water cooled by Université Laval chilled water plant (CERSO). A vacuum pump depressurizes the downstream tank to control cavitation in the turbine.