Pressure Drop Calculation for water and steam pipingFull description
Pressure drop cALCS
pressure drop calculation
Calculate pressure drop in rectangular steel air ducts. Low pressure.Full description
pressure drop
Full description
Full description
This Document is Used to Verify the Sizing of Transformer for a Motor Starting.Full description
Full description
design of a packed bed reactor
aliran dua fase
Pressure Drop Evaluation Along PipelinesDescription complète
design of a packed bed reactorFull description
Full description
Full description
Full description
CALCULATION OF PUMP HEAD ( ROUGH PIPE ) Ref.- Introduction to Chemical Engg. by Ghosal,Sanyal & Datta Fill data in Blue coloured cell Prepd. by - Dhananjay Thorat Flow req. (m3/hr) 50 RESULTS Flow req. (m3/s) 0.01389 Static Head ( m) Velocity (m/s ) 1.8 Velocity Head (m) Pipe Dia. (m.) 0.099116 Frictional head (m ) Corrected pipe dia. (m.) 0.08 Total head (m.of liq.column) Corrected velocity (m/s) 2.763452 Pump discharge pressure Static Head (m) ( + / - ) 5 in Kg/cm2 ( g) Density of fluid (kg/m3) -
1000
Viscosity of fluid (cp) -
1
Pipe length L (m) -
2
Fittings NRV ( Swing check ) No. of 450 - elbow No. of 900 - elbow No. of 1800 - close return bends No. of Tee used as elbow No. of Gate valve ( open ) No. of Globe valve ( open ) Std. Tee Sudden enlargement ( d/D = 1/4 ) ( d/D = 1/2 ) ( d/D = 3/4 ) Sudden contraction ( d/D = 1/4 ) ( d/D = 1/2 ) ( d/D = 3/4 )
0 0 3 0 1 1 0 0 0 0 0 0 0 0
Equivalent pipe length for fitting(m)-
15.44
Total pipe length L+ Le ( m ) -
17.44
Reynolds No.(NRe) Roughness of pipe 'e' (Micrometer) Friction factor -
221076.2 300 0.007139
Equivalent length 'Le' Data Fittings or valves
450 - elbow 900 - elbow 1800 - close return bends NRV ( Swing check ) Tee used as elbow Gate valve ( open ) Globe valve ( open ) Std. Tee Sudden Enlargement d/D = 1/4 d=Initial Dia. d/D = 1/2 D= Dia. After d/D = 3/4 enlargement Sudden contraction d/D = 1/4 D=Initial Dia. d/D = 1/2 d= Dia. After d/D = 3/4 contraction Where 'd' = Pipe diameter Roughness ' e ' Data Pipe MOC Steel Tube Rivetted Steel Galvanised iron Cast iron Asphalted cast iron Wood ,concrete Drawn Tube
5 -0.39 -2.42 2.19 0.2118
" Le" per fitting 15 x d 32 x d 75 x d 80 x d 90 x d 7xd 300 x d 65 x d 31 x d 19 x d 7xd 15 x d 10 x d 7xd
Suction side press Suction side press head Total suction head
1 10.330 12.52
Kg/cm2(a) mlc mlc
Liq. P0 at pumping Temp Liq. P0 at pumping Temp NPSH(A)
523 7.11 5.409
mmHg (a) mlc mlc
CALCULATION OF PUMP HEAD ( ROUGH PIPE ) Ref.- Introduction to Chemical Engg. by Ghosal,Sanyal & Datta Fill data in Blue coloured cell Prepd. by - Dhananjay Thorat Flow req. (m3/hr) 50 RESULTS Flow req. (m3/s) 0.01389 Static Head ( m) Velocity (m/s ) 2 Velocity Head (m) Pipe Dia. (m.) 0.09403 Frictional head (m ) Corrected pipe dia. (m.) 0.08 Total head (m.of liq.column) Corrected velocity (m/s) 2.763452 Pump discharge pressure Static Head (m) 7 in Kg/cm2 ( g) 3
Density of fluid (kg/m ) -
1000
Viscosity of fluid (cp) -
3
Pipe length L (m) -
70
Fittings NRV ( Swing check ) No. of 450 - elbow No. of 900 - elbow 0 No. of 180 - close return bends No. of Tee used as elbow No. of Gate valve ( open ) No. of Globe valve ( open ) Std. Tee Sudden enlargement ( d/D = 1/4 ) ( d/D = 1/2 ) ( d/D = 3/4 ) Sudden contraction ( d/D = 1/4 ) ( d/D = 1/2 ) ( d/D = 3/4 )
1 0 5 0 1 1 0 0 0 0 0 0 0 0
Equivalent pipe length for fitting(m)-
26.96
Total pipe length L+ Le ( m ) -
96.96
Reynolds No.(NRe) Roughness of pipe 'e' (Micrometer) Friction factor -
73692.05 300 0.00741
Equivalent length 'Le' Data Fittings or valves
450 - elbow 900 - elbow 1800 - close return bends NRV ( Swing check ) Tee used as elbow Gate valve ( open ) Globe valve ( open ) Std. Tee Sudden Enlargement d/D = 1/4 d=Initial Dia. d/D = 1/2 D= Dia. After d/D = 3/4 enlargement Sudden contraction d/D = 1/4 D=Initial Dia. d/D = 1/2 d= Dia. After d/D = 3/4 contraction Where 'd' = Pipe diameter Roughness ' e ' Data Pipe MOC Steel Tube Rivetted Steel Galvanised iron Cast iron Asphalted cast iron Wood ,concrete Drawn Tube
POWER REQUIRED 7
Pump efficiency
70
%
0.39
Pump Power Motor efficiency Motor required
3.7 80 7.2
BKW % HP
Discharge point press Discharge point press ∆p across CV ∆p across FT ∆p across Schenk filter Total Discharge head
1 10.3 0 0
Kg/cm2(a) mlc mlc mlc
31.70
mlc
Total Suction Head
12.52
mlc
Diff Head
19.18
mlc
13.98 21.37 2.0688
" Le" per fitting 15 x d 32 x d 75 x d 80 x d 90 x d 7xd 300 x d 65 x d 31 x d 19 x d 7xd 15 x d 10 x d 7xd
