3) For the two identical installations (except for turbine type) and following information, calculate /answer the following: T.W. Generator Reaction turbine H.W. Schematic drawing of reaction turbine installation. H.W. HOME WORK C.3- Turbine T.W. Schematic drawing of impulse turbine installation. DATA Head Water Elevation: 1400 meter above sea level (m.a.s.l.) Tail Water Elevation: 1100 meter above sea level (m.a.s.1) Runner axis Elevation: 1103, m.a.s.l Total Head Loss: 5 meter Flow(Q): 30 m/s Runner Diameter(D): 3 meter Turbine Efficiency: 94% H Effective head (m) = Turbine Power(kW) = (Q) x (H) x (Efficiency) x (9.8) Water temperature: 20 degree centigrade QUESTIONS A) Turbine mode i) What would be the turbine capacity of each type ii) If "head" increases by 20%, what would be the effect on the water velocity at entrance point of the runner, in both cases? iii) In theory, what would be the limit of tail water elevation being lower than that of the runner axis elevation in both cases? B) Pump mode i) Which installation can operate in reverse as pump, and what would be the capacity of the pump (assume pump efficiency of 0.9) ii) In theory, what would be the limit of tail water elevation being lower than that of the runner axis elevation in both cases? 1) Values of Atmospheric Pressure(Ha),at different Altitude Atmospheric Pressure and Vapor Pressure Variation Atmospheric Pressure Altitude (ft) h (lb/in) (ft HO) Altitude (m) ha (mm Hg) ha (m HO) 14.70 33.96 o 760.00 10.351 500 14.43 33.35 500 715.99 9.751 1,000 14.17 32.75 1,000 674.07 9.180 1,500 13.92 32.16 1,500 634.16 8.637 2) Values of Water Vapor 2,000 13.66 31.57 2,000 596.18 8.120 2,500 13.42 31.00 2,500 560.07 7.628 3,000 13.17 30.43 3,000 525.75 7.160 Pressure(Hv), 3,500 12.93 29.88 3,500 493.15 6.716 4.000 12.69 29.33 4,000 462.21 6.295 at different temperature 4,500 12.46 28.79 5,000 12.23 28.25 Water Vapor Pressure 5.500 12.00 27.73 6,000 11.78 27.21 6,500 11.56 26.70 Temp (1) " Temp (C) (m) 7,000 11.34 26.20 7,500 11.12 25.71 40 0.28 S 8,000 0.089 10.91 25.22 50 0.41 10 8.500 0.125 10.71 24.74 60 0.59 9.000 15 10.50 0.174 24.27 9,500 70 0.84 20 10.30 0.239 23.81 10,000 BO 0.17 25 10.10 0.324 23.35