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Water
Power Calculations. |
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Click to see a video of Florence Court Waterwheel in operation this is a breast fed wheel. To calculate the potential power of a river or stream you must find the volume of the flow and using this together with the available head, which is the distance the water can fall. Using the formula below you can deduce the maximum theoretical power output of the stream. The flow rate is the rate at which water travels along a flume measured in liters per second. One way to obtain an approximation of the flow rate is to throw a buoyant object into the middle of the flume, and time its travel in seconds over a known distance in meters. Then multiply by the estimated cross-sectional area of the stream, in square meters, and divide by 1000 to obtain the flow rate in liters per second. It is probably safe to say that 12 Cub Ft of water falling one foot in one second would produce one horse power.Power = Head (meters) x Flow (liters per second) x 9.81 Example If the head = 60 Meters and the flow = 10 Liters second then: Power = 60 x 10 x 9.81 = 5886 watts or 5.9 kW We have a data spread sheet available with this
and other formulas on it. |
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are three basic types of waterwheel, the overshot type is where
the water is fed over the top and the wheel. This is the most
efficient type and can deliver up to 75% of the potential power
of the flow.|
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