4) Decorative water fountain consists of a water reservoir and underground piping to and from a pump as shown. Informati

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4 Decorative Water Fountain Consists Of A Water Reservoir And Underground Piping To And From A Pump As Shown Informati 1 (71.63 KiB) Viewed 14 times

4) Decorative water fountain consists of a water reservoir and underground piping to and from a pump as shown. Information of the fountain system are listed below. a) Pressure difference is measured by a water manometer and a mercury manometer. Positions of the pressure taps are indicated in the figure. Assume the elevation difference between high and low pressure tap positions is very small (Az = 0). b) Manometer reading at some positions are shown in the Table Type Manometer reading High (m) Low (m) Туре Pipe Hp 1.000 Lp Mercury Elbow (3) H₂ H 0.700 L3 Water Pitot tube (7) H7= 0.600 L Mercury Gate vale (8) Hs=0.800 Ls Water Orifice meter (9) H₂ = 1.000 L9 Mercury c) The length of pipe between Hp and Lp is 5 m. d) Pipe diameter is d₁. e) Orifice diameter is 0.5 cm and discharge coefficient of the orifice meter is 0.8. The values of variable Lp, L3, L7, Lg, L9, and d₁ for each student are given in Table 4.1. Determine a) minor loss coefficient of the elbow (Ket), b) friction coefficient (f), c) discharge coefficient of the pitot tube (Cap), and d) minor loss coefficient of the gate vale (Kgv). = 0.641 | Lq: 0.115 m (10 marks) L3=0.432 Lp = 12 d₁= 0.010 m La=0.548 m I Lg=0.421% 0 11 L8 H8 L7 H7 10 6 7 L3 ● 2 Hp Lp H3 Remarks: 0= water surface; 1= inlet; 2, 3, 4, 6, 9 = flanged regular 90° elbows; 5 = pump; 7 = pitot tube; 8 = fully open flanged gate vale; 9 = orifice meter; 10 = exist; 11 = top of fountain, H high pressure, L= low pressure, pressure tap position. L9 H9