PUMP CALCULATION SHEET [PDF]

PUMP CALCULATION SHEET (RECIPROCATING PUMP) CLIENT PROJECT TITLE JOB NO. DOC. NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59

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( REV.

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1

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CHKD

CHKD

APVD

APVD

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DATE

DATE

ITEM NO. : SERVICES : FLUID PUMPED LIQUID OPERATING TEMPERATURE VISCOSITY AT OPERERATING TEMP. VAPOR PRESSURE SP. GR. AT OPERATING TEMP. GRAVITY CAPACITY EXCESS CAPACITY MAX. CAPACITY VOLUMETIRIC EFFICIENCY PLUNGER DISPLACEMENT CAPACITY

Symbol WATER 90 0.23 0.15 0.99 9.81

O

C cP

kg/cm2A m/s2 m3/hr % m3/hr % m3/hr

ESTIMATED STROKE LENGTH mm EST'D SPEED RPM EST'D PLUNGER DIA. mm NUMBER OF PLUNGER SUCTION PIPE DIA. AND DISCHARGE mm SUCTION PIPE LENGTH and DISCHARGE m SUCTION PRESSURE AT EQUIPMENT kg/cm2A MIN. STATIC HEAD ( + or - ) m PIPE FRICTION kg/cm2 PRESS. DROP AT EQUIPMENT(……… ) kg/cm2 SUCTION PUMP DIA. mm VELOCITY HEAD AT SUCTION kg/cm2 SUCTION HEAD kg/cm2 PUMP SUCTION PRESSURE kg/cm2A NPSH AVAILABLE m DISCHARGE PRESSURE AT EQUIPMENT kg/cm2A STATIC HEAD m PRESSURE DROP AT : PIPE (include fittings & valves) kg/cm2 Equipment 1 (……………………… kg/cm2 Equipment 2(………………………. kg/cm2 Equipment 3 (……………………… kg/cm2 DISCHARGE PRESSURE DROP kg/cm2 DISCHARGE HEAD kg/cm2 ORIFICE PRESS. DROP RATIO %

194 9

120 0 120 94 127.7 152 360 133 3 / /

kW kW

76.96

m

21.83 2.40

DRIVER BHP ESTIMATED NPSH R MINIMUM SUCTION EQP. PRESS. NOTES :

kg/cm2 m m % %

kg/cm2A

Data Data Data Data Data Data Q' = 0.01 Q (100+Qe%) Page 7 Qp1 = 100 Q /ηV Fig. 10, 9, app. A

z=3 triplex, L = 152 mm N=360 rpm

Eq. 13 or Appendix A 146 50

z Dps, Dpd Lps, Lpd P1 H1

P2 H2

kW

kg/cm2A

Qp1 L N

12 24

PUMP BHP

kg/cm2 kg/cm2A

ηV

ID HV DPt1 PS NPSHA

LIQUID HORSE POWER

kg/cm2

Q Qe% Q'

3 1 0.12 0.05 146 0.020 -0.091 2.909 27.868

0.12 0.11 0.1 0.05 0.380 3.136 20 0.627 0.000 18.139 2.909 15.230 153.84 154.00 88 93 59.21 71.57

ORIFICE PRESS. DROP ACCELERATION HEAD PUMP DISCHARGE PRESSURE PUMP SUCTION PRESSURE PUMP DIFF. PRESSURE TOTAL HEAD (CALCULATED) TOTAL HEAD (TAKE) MECHANICAL EFFICIENCY GEAR EFFICIENCY

VIS PV SG g

Note

DP2 DPt2

ηP

DPOR PD PS DP H H

ηM ηGEAR LHP

Appendix A Data Data Data (minus if bellow pump elevation) Data See note 1) Data See note 1) App. A Eq. 1 and 2 See note 1) = 0.1 SG.H1 - Loss in line 25&26 - HV Eq. 1 to 3 Eq. 8 Data Data Data Data See note 1) Data Data = total of line no. 36 up to 39 = DP2 + 0.1(H2)(SG) If require pulsation dampener. If not fill with 0 Eq. 18 If does not require pulsation dampener use eq. 15 PD = P2+0.1(H2)(SG)+DP2 = line 22 DP=PD-PS H=10(DP)/SG Page 7 Page 7 Eq. 9 and 10

BHPPUMP

Eq. 11

BHPDRIVER NPSHR P1MIN

Eq. 12 Eq. 20 =0.1 NPSHR.SG + PV - DPt1

1) THIS PRESSURE DROP SHALL HAS BEEN MULTIPLIED FROM CONTINOUS FLOW PRESS. DROP CALCULATION BY :

10 times for simplex

60

2.6 times for duplex

61

1.2 times for triplex

Note 2). Pulsation dampener vol. = (25 Lt x 18/11.2)/22 = 1.8 Lt Value of 25 Lt provided from fig. 13

PUMP CALCULATION SHEET (RECIPROCATING METERING PUMP) CLIENT PROJECT TITLE JOB NO. DOC. NO. 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59

:

REV.

: : :

( 1

2

3

) MADE

BY

CHKD

CHKD

APVD

APVD

(

)

DATE

DATE

ITEM NO. : SERVICES : Preliminary

FLUID PUMPED LIQUID OPERATING TEMPERATURE VISCOSITY AT OPERERATING TEMP. VAPOR PRESSURE SP. GR. AT OPERATING TEMP. GRAVITY

NH3 -33 0.23 1.002 0.72 9.81

O

C cP

kg/cm2A

CAPACITY EXCESS CAPACITY MAX. CAPACITY

m/s2 m3/hr %

VOLUMETIRIC EFFICIENCY PLUNGER DISPLACEMENT CAPACITY

m3/hr % m3/hr

ESTIMATED STROKE LENGTH mm EST'D SPEED RPM EST'D PLUNGER DIA. mm NUMBER OF PLUNGER SUCTION PIPE DIA. AND DISCHARGE mm SUCTION PIPE LENGTH and DISCHARGE m SUCTION PRESSURE AT EQUIPMENT kg/cm2A MIN. STATIC HEAD ( + or - ) m PIPE FRICTION kg/cm2 PRESS. DROP AT EQUIPMENT(……… ) kg/cm2 SUCTION PUMP DIA. mm VELOCITY HEAD AT SUCTION kg/cm2 SUCTION HEAD kg/cm2 PUMP SUCTION PRESSURE kg/cm2A NPSH AVAILABLE m DISCHARGE PRESSURE AT EQUIPMENT kg/cm2A STATIC HEAD m PRESSURE DROP AT : PIPE (include fittings & valves) kg/cm2 Equipment 1 (……………………… kg/cm2 Equipment 2(………………………. kg/cm2 Equipment 3 (……………………… kg/cm2 DISCHARGE PRESSURE DROP kg/cm2 DISCHARGE HEAD kg/cm2 ORIFICE PRESS. DROP RATIO % ORIFICE PRESS. DROP kg/cm2 ACCELERATION HEAD kg/cm2 PUMP DISCHARGE PRESSURE kg/cm2A PUMP SUCTION PRESSURE kg/cm2A PUMP DIFF. PRESSURE kg/cm2 TOTAL HEAD (CALCULATED) m TOTAL HEAD (TAKE) m MECHANICAL EFFICIENCY % GEAR EFFICIENCY % LIQUID HORSE POWER kW

80 8

5 0 5 94 5.32 80 130 105 3 / /

kW

PUMP BHP

65 40

Recalculation NH3

Note

-33 0.23 1.002 0.72 9.81

Data Data Data Data Data

5 0 5.00 94.00 5.32 80 130 105 3

Data

80 8

Q' = 0.01 Q (100+Qe%) Page 7 Qp1 = 100 Q /ηV Fig. 10, 9, app. A

z=3 triplex, L = 80 mm N=130 rpm

Eq. 13 or Appendix A 65 40

Appendix A Data

1.013 2 0.05 0 100 0.000 0.094 1.107 1.457

1.013 7.5 0.05 0.00 100.0 0.000 0.490 1.503 6.957

Data Data (minus if bellow pump elevation) Data See note 1) Data See note 1) App. A Eq. 1 and 2 See note 1) = 0.1 SG.H1 - Loss in line 25&26 - HV Eq. 1 to 3 Eq. 8

12 24

12.00 24.00

Data Data

0.12 0.11 0.1 0.05 0.380 2.488 20 0.498 0.00 16.714 1.107 15.607 216.76 217.00 88 93 2.27 2.75

0.12 0.11 0.10 0.05 0.38 2.488 20.00 0.498 0.00 16.714 1.503 15.211 211.26 212.00 88 93 2.27 2.75

Data Data See note 1) Data Data = total of line no. 36 up to 39 = DP2 + 0.1(H2)(SG) If require pulsation dampener. If not fill with 0 Eq. 18 If does not require pulsation dampener use eq. 15 PD = P2+0.1(H2)(SG)+DP2 = line 22 DP=PD-PS H=10(DP)/SG Page 7 Page 7 Eq. 9 and 10 Eq. 11

kW DRIVER BHP Eq. 12 2.95 2.95 ESTIMATED NPSH R Eq. 20 m 5.66 5.66 MINIMUM SUCTION EQP. PRESS. =0.1 NPSHR.SG + PV - DPt1 0.42 1.18 kg/cm2A IS NPSHA IS ADEQUATE ? See note 2) YES NO NOTES : 1) This value shall has been multiplied from continous flow pressure drop calculation by :

10 times for simplex

60

2.6 times for duplex

61

1.2 times for triplex

Note 2)

83

First calculation, NPSHA is not adequate. Recalculate by elevating liquid level.

Note 3) Pulsation dampener vol. = (9 Lt x 5/11.2)/22 = 0.6 Lt

lt/min