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OBSERVATION - OBSERVATION AND CALCULATIONS FOR WATER AT 30...

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OBSERVATION AND CALCULATIONS: FOR WATER AT 30° C AND 1 ATM: DENSITY=996kg/m KINEMATIC VISCOSITY=0.802*10^-6 DIAMETER 1=0.0183 m DIAMETER 2=0.0240m Re=ρDV/ ʋ Fitting Manomete r 1 Manometer 2 Head Loss h Total head loss Δh Volume Time h h h -h h+h 1 V t m m m m m³*10^-3 sec MITRE 2.42 2.18 0.24 0.24 1 10 ELBOW 2.8 2.63 0.17 0.17 1 10 SHORT BEND 3 2.88 0.12 0.12 1 10 ENLARGEME NT 3.06 3.18 -0.12 -0.1151269 1 10 CONTRACTIO N 3.1 3.02 0.08 0.08487308 1 10 GAUGE VALUE READING= 0 m Reynold’s No. Flow Rate Area Velocity Dynamic Head K Flow Q t A=PI/4*d² V V²/2g Δh/(V²/2g) m³/s m/s m 440220.465 0.0001 0.00026312 8 0.38004337 9 0.019370203 12.390164 5 Turbulent 440220.465 0.0001 0.00026312 8 0.38004337 9 0.019370203 8.7763665 5 Turbulent 440220.465 0.0001 0.00026312 8 0.38004337 9 0.019370203 6.1950822 7 Turbulent 335668.104 0.0001 0.00045257 1 0.22095959 6 0.011261957 - 10.655342 Turbulent 440220.465 0.0001 0.00026312 8 0.38004337 9 0.019370203 4.1300548 5 Turbulent AREA: A = 3.142 D 2 / 4 A= 3.142 (0.0183) / 4 A= 2.63 * 10 -4 m 2 For enlargement and contraction: For enlargement and contraction change in area results in an additional pressure head which has been added to head loss readings for enlargement and contraction in the following tables: h’=(V 2 2 /2g)-(V 1 2 /2g) H 1 ’=(0.380043379 2 /2*9.81)-(0.220959596 2 /2*9.81)= H 2 ’=(0.76008675 2 /2*9.81)-( 0.441919192 2 /2*9.81)=
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H 3 ’=(0.95010844 Fitting Manometer 1 Manometer 2 Head Loss Δh Volume Time h h h -h V t m m m m m³ *10^- 3 sec MITRE 1.99 1.46 0.53 0.53 2 10 ELBOW 2.75 2.38 0.37 0.37 2 10 SHORT BEND 3.15 2.94 0.21 0.21 2 10 ENLARGEM ENT 3.25 3.44 -0.19 - 0.18980507 2 10 CONTRACTI ON 3.41 3.18 0.23 0.23019492 2 10 GAUGE VALUE READING= 0 m Reynold’s No.
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