Jindal Steel & Power Limited

LDO Unloading Pump sizing:

A) Capacity selection of LDO unloading Pump for 6x135 MW CPP:

We have considered that the required LDO will be brought to the CPP fuel oil unloadingarea in road tankers. The unloading system will be designed to unload LDO from two (2)nos. road tankers sequentially one after another.

The capacity for each tanker is considered 13

The effective unloading time for each tanker considered 20 minutes

Hence, required capacity of unloading pumps comes out to be = (13 x 60)/20 m3/hr.39 m3/hr.

Margin over required pump capacity considered 10%

So, design capacity of pumps (considering margin) 42.9 m3/hr.

Hence, selected LDO unloading pump capacity 45 m3/hr.

B) Capacity selection of LDO unloading Pumps for 5x180 TPH Process Boiler Plant:

We have considered that the required LDO will be brought to the fuel oil unloadingarea dedicated for Process Boiler Plant in road tankers. The unloading system will be designed to unload LDO from two (2) nos. road tankers sequentially one after another.

The capacity for each tanker is considered 13

The effective unloading time for each tanker considered 20 minutes

Hence, required capacity of unloading pumps comes out to be = (13 x 60)/20 m3/hr.39 m3/hr.

Margin over required pump capacity considered 10%

So, design capacity of pumps (considering margin) 42.9 m3/hr.

Hence, selected LDO unloading pump capacity 45 m3/hr.

6x135 MW CPP + 5x180 TPH Process Boiler Plant at Angul, Orissa

m3

m3

ATTACHMENT-1A

ATTACHMENT-1BLDO UNLOADING PUMP (FOR CPP) TDH CALCULATION

CONSIDERATION1. Kinematic viscosity of LDO =7 Cst2.LDO Storage Tank inlet nozzle elevation = 10.5 M3. Flow through suction header = 45 m3/hr.

SUCTION DISCHARGE

150 100

168.3 114.3

7.11 6.02

154.08 102.26

70 100

45 45

810 810

Viscosity (CS) 7 Viscosity (CS) 7

Reynolds No. 14756.24 Reynolds No. 22233.93

0.023 0.025

0.670 Velocity (m/sec) 1.522

0.239351 2.8864

0.26329 3.1750

1

1.2633 3.1750

PUMP HEAD CALCULATION

10.5

PIPE SIZE (mm NB)

PIPE SIZE (mm NB)

Pipe outer Diameter

Pipe outer Diameter

Pipe Thickness (mm)

Pipe Thickness (mm)

Pipe Inner Diameter (mm)

Pipe Inner Diameter (mm)

Suction Piping Length (m)

Discharge Piping Length (m)

Flow, Q (m3/hr) Flow, Q (m3/hr)

Density (kg/m3) Density (kg/m3)

Darcy Friction Factor

Darcy Friction Factor

Velocity (m/sec)

Pressure Drop (m) in st pipe

Pressure Drop (m) in st pipe

Adding 10% MARGIN ON PRESSURE DROP = (M)

Adding 10% MARGIN ON PRESSURE DROP = (M)

Pr.loss due to strainer(MLC)

TOTAL SUCTION HEAD LOSS (ABSOLUTE) (MLC)

TOTAL DISCHARGE HEAD LOSS (ABSOLUTE) (MLC)

Total staic Head to be developped(by differnce)in MLC

= 14.938 MLC

Bend & Fittings loss considered = 5%

Total Dynamic head (considering Bend & Fittings Loss) = 15.685 MLC

Margin over estimated pumping head required = 5%

SELECTED TOTAL HEAD = 16.47 MLC

20 MLC

TOTAL DYNAMIC HEAD (without bend & Fittings loss)= Total Static head to be developed+Friction loss (suction+ discharge)

of total developed head

NOTE: Minimum wall thickness for steel piping shall be (i) Sch. 80 for pipe sizes up to 50 NB; (ii) Sch. 40 for pipe sizes above 50 NB but below 300 NB; and (iii) Sch. STD for pipe sizes 300 NB and above.