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Undershot flat plate water wheel performance as a water lifter

In waterwheels, blade length would affect the bucket lift power to raise water from a low place to a higher place. From the three undershot blade length variation, the highest efficiency occurred at a the 60 mm blade length with a value of 35.839% compared to the 50 mm blade length with an efficiency value of 34.956% and the 40 blade length with the low efficiency, with a value of 32.322%. All blades have the same width, which is 70 mm. | Undershot flat plate water wheel performance as a water lifter