Tamar Designs

POWER FROM WATER

How much power can be generated from an available water source depends on fall and flow. A prospective site should be properly surveyed.

Turbines are chosen to suit the site and power requirements.

Tamar Designs manufactures Kaplan, Francis, Turgo Impulse and Pelton turbines covering a full range of outputs up to approx 5 mega Watts, operating on falls as little as 1 metre to over 800 metres.

For a given power requirement, the cost of the turbine usually reduces as the "nett head" or "fall" is increased. This is because less water is required for the same power if the head is increased, and consequently a smaller machine can be used.

Where there is a consistent and adequate water flow, Tamar Designs can build turbines with a governing system that controls the speed without changing the flow of water through the turbine.

Where the water flow is inadequate for a constant flow governing system, we have systems where the governor regulates the flow to suit the load.

For systems to work on a minimal water flow, at sites where there is some water storage, we can offer the 'Automatic Start on Demand' system. With this, the turbine shuts down and uses no water when there is no electrical load.

	GUIDE TO ELECTRICAL POWER FROM WATER
NETT HEAD OR PRESSURE IN METRES OF WATER	APPROXIMATE PIPE DIAMETER (mm) WATER FLOW IN LITRES PER SECOND