Question

Water Dam P1 = 9.3 psig P1 = 9.3 psig V, -5 ft's Turbine 200 Ft P2 = 4.3 psig, p=62.42 lbm/ft"; V 2 = 40 ft./s; D2 = 4 ft H A hydraulic turbine generator have the given data shown in the figure. Determine: • • Mass flow rate in Ibm/s Power produced in hp Power produced in kW Determine the value of the power produced in dollars per day if evaluating the electricity generated at 8.5 cents per kW hr.

Answer 1

Given data At inlet of turbine ºi = 9.3 Psig a 9.3 (gauge) { gauge means Pressure 7 p = 9.3x144 - 1239.2 et 2 is above atm. = 1339.2 psfg ya sh i velocity at inter) hy = 200 ft (height from early at inter) L- Genesatori Dalyan © AT outlet q = 403 psig = 43 hsf P = 4.3 +144 lip geuses -PL = 619.2 Pefg = 40 ft/s (outlet Velouly ) 2 = 0 (at Darum ,

e = 62042 Deneity of water lsm ft3 Specific weight e = eig = 62042 (element) x 32017 () y = 62042 ( lom) x 32017 46 x 32-17 ebm-ft esa r2 12=62112 et en 1 o Mass flow rate of water (bag m = min maut (for steady flow) •) ma l.AUR - 62012. (everyone x 4 x 427 50 Tmz 31375.71 ebm S Nass flow rate of Wues - Power Produced in up apply Bernoullis eqn 6/0 0 and ③ le, at julet and outer H = Pople use these 12,-22) Hz - 1339 2 - 619.2 62-42 5² 402 2x 32.17 + - THE - 184.055 Ft Head developed by thissine wwwwwwwwwww

Power developed in CHP) P = a night § - 31315.71 (esuy )* 3217 x 1840055 Ft 5 D Þ 31375-7, esmette - x 32:47 xl- / ASF (32.11 ebonaft 52 xley.055 Ft => Ý D Ď = 58689970112 lbf-ft 5868997-112 lb pofty ( P = 10670-87 HP Power produced in (HP), 3 -Power-produced in lew I deo - 14p = 0.7457 kw La P = 10670-87 HP - (0670.67 * 0-7457 kw P = 7957.27 km power produced in ko. W Value of power produce Power produced in one day (zahr) p=7957.27 x 24 korks value of Power 8-5 Cents per lew.he So-value of power genereled = 7957• 27 x24 *8.5 Cents vame of Power = 7957.27X24 x 8.5x to dollars value of power p = 16232.83 & dollars Answek