EXPERIMENT 9 - OBSERVATION AND CALCULATIONS FOR WATER AT 30° C AND 1 ATM • DENSITY=996kg/m • KINEMATIC VISCOSITY=0.802*10^-6 • DIAMETER

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Unformatted text preview: 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 AREA: A = 3.142 D 2 / 4 A 1 = 3.142 (0.0183) 2 / 4 A 1 = 2.63 * 10-4 m 2 A 2 =3.142(0.0240) 2 /4 A 2 =0.000452 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)= 0.00487308 • H 2 ’=(0.76008675 2 /2*9.81)-( 0.441919192 2 /2*9.81)= 0.00019492 Fitting Manometer 1 Manometer 2 Head Loss h Total head loss Δh Volume Time h ₁ h ₂ h -h ₁ ₂ h+H1’ V t m m m m m³*E-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 Qt A=PI/4*d² V V²/2g Δh/ (V²/2g) m³/s m² m/s m 440220.465 0.0001 0.0002631 0.3800433 0.019370203 12.39016 Turbulen t 440220.465 0.0001 0.0002631 0.3800433 0.019370203 8.776366 Turbulen t 440220.465 0.0001 0.0002631 0.3800433 0.019370203 6.195082 Turbulen t 335668.104 0.0001 0.0004525 0.2209595 0.011261957-10.6552 Turbulen t 440220.465 0.0001 0.0002631 0.3800433 0.019370203 4.130054 Turbulen t • H 3 ’=(0.95010844 2 /2*9.81)-( 0.55239899 2 /2*9.81)= 0.000304 Fitting Manometer 1 Manometer 2 Head Loss h Total head loss Δh Volume Time h ₁ h ₂ h -h ₁ ₂ 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...
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This note was uploaded on 03/30/2012 for the course CHEMICAL 205 taught by Professor Ammarali during the Spring '12 term at NED Univ. of Engineering & Tech..

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EXPERIMENT 9 - OBSERVATION AND CALCULATIONS FOR WATER AT 30° C AND 1 ATM • DENSITY=996kg/m • KINEMATIC VISCOSITY=0.802*10^-6 • DIAMETER

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