A pelton turbine is to operate under a net head of 650 m at 480 rpm. If a single jet with diameter 18 cm is used, then the specific speed of the machine is (Cv = 0.98, overall efficiency = 85%)
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In case of a Pelton turbine, an additional requirement for its operation at the condition of maximum efficiency is that the ration of bucket to initial jet velocity has to be kept at its optimum value of about 0.46.
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In case of a Pelton turbine, an additional requirement for its operation at the condition of maximum efficiency is that the ration of bucket to initial jet velocity has to be kept at its optimum value of about 0.46.
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