Question

water 248 m 945 ml 2 Water Pipe GENERATOR TURBINE 1) A dam in somewhere with a height of 248 m, is one of the tallest dam in the world. Water flows with a volumetric flow rate of 65 m'ls to a turbine, where electric power is generated. The total irreversible head los in the piping system from point 1 to point 2 (excluding the turbine unit) is determined to be 95 m. The pressure difference due to elevation cannot be neglected. The pressure at (1) is 8730 Pa hile it is 101300 Pa at point (2), If the ovecrll efficiency of the 1S percent, estimate the electric power output in MW with three significant turbine-generátor digits (p-1000 kg/m) (40 points) i. Write the general energy balance ii. Cancel the irrelevant terms ii. Find the hthen the power of the turbine and the electricity generated. 944633 o

Answer 1

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tere Abso, area o pipe is net Thur, se can neglect v and V tmn balance equation, 冫 Pm. 101300 Pa . sing there valuis in equatioaD 8 17 502 一一.. + 248 ^ 101300 eo. 326 t q s +.coocot 8.qyy t 2,8 ち) 1o torbine Pocvex outpethx9