A Pelton wheel converts what power into usable energy?
Pelton wheel Pelton wheel The Pelton wheel is an impulse-type water turbine. It was invented by Lester Allan Pelton in the 1870s. The Pelton wheel extracts energy from the impulse of moving water, as opposed to water's dead weight like the traditional overshot water wheel. Many variations of impulse turbines existed prior to Pelton's design, but they were less efficient than Pelton's design. Water leaving those wheels typically still had high speed, carrying away much of the dynamic energy brought to the wheels. Pelton's paddle geometry was designed so that when the rim ran at half the speed of the water jet,
Pelton wheel jet is converted to shaft output. A wheel power divided by the initial jet power, is the turbine efficiency, "η" = 4"u"("V" − "u")/"V". It is zero for "u" = 0 and for "u" = "V". As the equations indicate, when a real Pelton wheel is working close to maximum efficiency, the fluid flows off the wheel with very little residual velocity. In theory, the energy efficiency varies only with the efficiency of the nozzle and wheel, and does not vary with hydraulic head. The term "efficiency" can refer to: Hydraulic, Mechanical, Volumetric, Wheel, or overall efficiency. The conduit bringing