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STAR REFINERY
REFINERY FIREFIGHTING SYSTEM IMPROVEMENT
PROJECT
CONTRACT Nº STR-PRM-CTR-016
UNIT Nº 000
CONTRACTOR DOC No: 920858-FI-011-006
SH/OF 1/8
STAR DOCUMENT No. 000-A-ZE-0040006-015
REV 0
HYDRAULIC CALCULATION FOR HIGH EXPANSION FOAM SYSTEM OF LPG
IMPOUNDING BASEMENT
0 09-Dec.-19 Issue for Review ESS ESS OS
REV. ISSUE DATE REASON FOR ISSUE PREPARED
BY
CHECKED
BY
APPROVED
BY
STAR REFINERY
REFINERY FIREFIGHTING SYSTEM IMPROVEMENT
PROJECT
CONTRACT Nº STR-PRM-CTR-016
UNIT Nº 000
CONTRACTOR DOC No: 920858-FI-011-006
SH/OF 2/8
STAR DOCUMENT No. 000-A-ZE-0040006-015
REV 0
TABLE OF CONTENTS
1 GENERAL ............................................................................................................................................... 3
1.1 PURPOSE ....................................................................................................................................... 3
1.2 OBJECTIVES ................................................................................................................................... 3
2 REFERENCES ......................................................................................................................................... 3
2.1 PROJECT DOCUMENTS ................................................................................................................. 3
2.1.1 Project Specifications ................................................................................................................... 3
2.1.2 Basis of Design and Project Documents ....................................................................................... 3
2.2 INTERNATIONAL STANDARDS AND CODES .................................................................................. 4
3 ABBREVIATIONS .................................................................................................................................... 4
4 DEFINITIONS ......................................................................................................................................... 4
4.1 GENERAL DEFINITIONS ................................................................................................................. 4
5 REQUIREMENTS .................................................................................................................................... 5
6 FORMULA AND CALCULATION DATA ................................................................................................... 5
6.1 GENERAL CRITERIA ....................................................................................................................... 5
6.2 FORMULA ..................................................................................................................................... 6
7 ATTACHMENT ....................................................................................................................................... 8
STAR REFINERY
REFINERY FIREFIGHTING SYSTEM IMPROVEMENT
PROJECT
CONTRACT Nº STR-PRM-CTR-016
UNIT Nº 000
CONTRACTOR DOC No: 920858-FI-011-006
SH/OF 3/8
STAR DOCUMENT No. 000-A-ZE-0040006-015
REV 0
1 GENERAL
1.1 PURPOSE
The scope of this document is the Fire Water Hydraulic Calculation of High Expansion Foam
System of LPG Impounding Basement within LPG Tanks Area (Unit 630) according to design
specification and standards used in the AEGEAN REFINERY project. 1.2 OBJECTIVES
The purpose of this document is to define and present the guidelines and requirements of fire
water hydraulic calculation for fire protection systems of plant, in conjunction with relevant
project specifications, which will be supplied for TAR AEGEAN REFINERY Fire Fighting
Improvement Project.
The following values are determined by means of hydraulic calculation within document;
Flow rates
Simultaneous system actuation
Friction losses
System pressures available
Velocities and line sizes
2 REFERENCES
The fire protection system shall be designed and installed in accordance with the following
referenced Codes, Standards and Technical Specifications. The editions of the listed codes are
the current revisions at the date of Contract signature.
2.1 PROJECT DOCUMENTS
2.1.1 Project Specifications
STGPS-S4 FIRE PROTECTION AND SAFETY FACILITIES
2.1.2 Basis of Design and Project Documents
920858-PC-105-001 FIRE PROTECTION SYSTEMS DESIGN BASIS
630-A-EB-050901-001 LPG STORAGE AREA (U-630)
STAR REFINERY
REFINERY FIREFIGHTING SYSTEM IMPROVEMENT
PROJECT
CONTRACT Nº STR-PRM-CTR-016
UNIT Nº 000
CONTRACTOR DOC No: 920858-FI-011-006
SH/OF 4/8
STAR DOCUMENT No. 000-A-ZE-0040006-015
REV 0
2.2 INTERNATIONAL STANDARDS AND CODES
NFPA 13 STANDARD FOR THE INSTALLATION OF SPRINKLER SYSTEMS
NFPA 14 STANDARD FOR THE INSTALLATION OF STANDPIPE AND HOSE SYSTEMS
NFPA 24 STANDARD FOR THE INSTALLATION OF PRIVATE FIRE SERVICE MAINS AND THEIR APPURTENANCES
API 2001 FIRE PROTECTION IN REFINERIES
API 2021 MANAGEMENT OF ATMOSPHERIC STORAGE TANK FIRES
3 ABBREVIATIONS
Lengths (L) Meters (m)
Time (T) Minutes (m)
Pipe Diameter (ø) Inch or mm
Pressure (P) Bar
Pressure loss (P) Bar/m
Flow Meter cubic per hour (m3/h) or gallon per minute (gpm)
Discharge Density Liters per minute and square meter (l/min/m2)
Velocity Meters per second (m/sec)
Temperature Degree centigrade (ºC)
Height elevate Meters (m)
C-factor Friction loss coefficient
4 DEFINITIONS
4.1 GENERAL DEFINITIONS
The following words and expressions used in the Specification have the following meanings:
OWNER shall mean STAR Refinery A.Ş. (STAR)
ENGINEER means ÇİMTAŞ.
VENDOR shall mean any part who delivers equipment and materials for FACILITIES/UNITS
PROJECT means Fixed Fire Fighting system rehabilitation and U-630/640 LPG unit &
STAR REFINERY
REFINERY FIREFIGHTING SYSTEM IMPROVEMENT
PROJECT
CONTRACT Nº STR-PRM-CTR-016
UNIT Nº 000
CONTRACTOR DOC No: 920858-FI-011-006
SH/OF 5/8
STAR DOCUMENT No. 000-A-ZE-0040006-015
REV 0
Impounding basin area Fire Fighting system rehabilitation of STAR Refinery A.Ş.(STAR) at
Aliağa, TURKEY
FACILITIES/UNITS shall mean the entire facilities, units, and plants where fire fighting
systems to be rehabilitated in conformity with the PROJECT requirements and scope that
ENGINEER meet its liabilities as defined in the agreement on, under, in or through
OWNER’s JOBSITE.
JOBSITE shall mean OWNER’s property land at IZMIR – ALIAĞA, TURKEY on, under, in or
through which the required FACILITIES for rehabilitation of fire fighting systems.
5 REQUIREMENTS
The Hydraulic calculation shall be performed considering the minimum pressure at nozzle on the remote controlled monitors.The minimum pressure at hose connections most remote nozzle is 7 bar (NFPA 24). The pressure and flow required by the system at the point of connection to the water supply system have been verified by Omnicadd HCS 2.3.The results are shown in Calculation Report table. For hydraulic calculation, the following general data has been considered for all calculation: • Minimum Pressure at Hose Connection = 7 bar
• Values “C” for Carbon Steel Pipe = 120 (Table 23.4.4.8.1 of NFPA 13)
• Maximum velocity allowable for Fire Water Mains = 3.5 m/sec.
6 FORMULA AND CALCULATION DATA
6.1 GENERAL CRITERIA
The calculations are performed by a hydraulic calculation software, the procedures described on
NFPA 13 and NFPA 24.
ASME-B36.10 ASTM A106 Grade B Seamless pipes shall be installed for aboveground fire
protection systems. Equivalent lengths of the used fittings as given in NFPA 13, are added to the
actual length of each pipe pathway for input into the pressure drop calculation. Pressure drop
due to friction is calculated for each pathway by using the Hazen-Williams pressure drop
method. All pressure drops through each critical pathway leading to a system are added for a
total pressure drop due to friction.
STAR REFINERY
REFINERY FIREFIGHTING SYSTEM IMPROVEMENT
PROJECT
CONTRACT Nº STR-PRM-CTR-016
UNIT Nº 000
CONTRACTOR DOC No: 920858-FI-011-006
SH/OF 6/8
STAR DOCUMENT No. 000-A-ZE-0040006-015
REV 0
6.2 FORMULA
Friction loss formula is described in item 23.4.2.1.1 of NFPA 13
𝑃𝑚 = 6.05 × (𝑄𝑚
1.85
𝐶1.85 × 𝑑𝑚4.87) × 105
where: Pm = frictional resistance (bar/m of pipe)
Qm = flow (L/min)
C = friction loss coefficient
dm = actual internal diameter (mm)
The minimum rate of discharge shall be calculated from the following formula 6.12.8.2.3 of NFPA 11
𝑅 = (𝑉
𝑇+ 𝑅𝑠) 𝑥 𝐶𝑁 𝑥 𝐶𝐿
where:
R = rate of discharge in m3/min
V = submergence volume in m3
T = submergence time in minutes
Rs = rate of foam breakdown by sprinklers in m3/min
CN = compensation for normal foam shrinkage
CL = compensation for leakage
Foam depth: Depth = 1.5 × 1.1 = 1.65 m (This depth is greater than minimum cover of 0.6 m.) Submergence volume: V = 72.5 × 12.5 × 1.65 = 1495 m3
Submergence time: T = 3 minutes (from Table 6.12.7.1)
Rate of foam breakdown by sprinklers:”0” Due to sprinkler system isn’t existed
STAR REFINERY
REFINERY FIREFIGHTING SYSTEM IMPROVEMENT
PROJECT
CONTRACT Nº STR-PRM-CTR-016
UNIT Nº 000
CONTRACTOR DOC No: 920858-FI-011-006
SH/OF 7/8
STAR DOCUMENT No. 000-A-ZE-0040006-015
REV 0
Normal foam shrinkage: CN = 1.15 [from 6.12.8.2.2(3)]
Leakage: CL = 1.2 (assumption)
𝑅 = (1495
3+ 0) 𝑥 1.15 𝑥 1.2
R = 688 m3/min
Foam output capacity of high expansion foam generator
A local application system shall consist of fixed foam-generating apparatus complete with a piped supply of foam concentrate and water that is arranged to discharge foam directly onto a fire or spill hazard.LPG Impounding Base is called as spill hazard area.
These very high expansion ratios produce large quantities of finished foam from relatively small amounts of water and foam concentrate. 2% proportioning is recommended for most medium to high expansion foam generators.
Determine High Expansion Foam Generator
Generator foam output capacity: 347 m3/min (Chemguard-CHX15000 @ 3.4 bar
Generator quantity: 688 m3/min / 347 m3/min = 2 ea.
Foam concentrate demand for generators: 347 m3/min x 2 = 694 m3/min
Foam Generator expansion ratio is indicated 1:745
Foam-water solution demand for generators: 694 m3/min / 0.745 = 932 lt/min.
Foam-water solution demand for 25 min: 932 lt/min. x 25 min. = 23.300 lt
Foam demand for 25 min: 23.300 lt x 0.02 = 466 lt x 1.1 (safety factor) = 150 gallon
100 % Reserve Capacity : 150 gal x 2 = 300 gallon
High-expansion foam concentrate and water shall be provided to permit continuous operation of the entire system for 25 minutes or to generate 4 (four) times the submergence volume,
STAR REFINERY
REFINERY FIREFIGHTING SYSTEM IMPROVEMENT
PROJECT
CONTRACT Nº STR-PRM-CTR-016
UNIT Nº 000
CONTRACTOR DOC No: 920858-FI-011-006
SH/OF 8/8
STAR DOCUMENT No. 000-A-ZE-0040006-015
REV 0
whichever is less, but in no case less than enough for 15 minutes of full operation. (Item 6.12.9.1 of NFPA 11)
Input Data
The following requirements has been considered as input to OmniCADD Software.
1. Assumed Terminal Point head is 932 lpm (247 gpm) at 9 bar.
2. Maximum velocity in the underground fire water network is 3.5 m/s
3. High Expansion Foam Generator is required flow and pressure 466 lpm (123 gpm) at 3.4 bar
for each one
Output Data
The following requirements has been calculated as output to OmniCADD Software.
1. Calculated head is 933 lpm (247 gpm) at 4.1 bar for water curtain system.
2. Calculated maximum velocity in the pipes is 3.6 m/s
7 ATTACHMENT
Hydraulic Calculation Report is indicated in attached.
HYDRAULIC CALCULATIONS
for
High Expansion Foam System
Contract No.
Date December 02, 2019
Design Data:
Remote Area Location U-630 LPG Impounding Basin
Occupancy Classification
Density 0.00 lpm/sq.m
Remote Area Size 0.0 sq.m
Coverage per Sprinkler 0.0 sq.m
Sprinkler K-Factor 253.00
No. of Sprinkler Calculated 2
In-Rack Demand 0.0 lpm
Source Hose Demand 0.0 lpm
Total Water Including Hose 933.0 lpm
Name of Contractor
Name of Designer Çimtas Boru Imalatlari ve Ticaret Ltd. Sti.
Address Ata Sb. Mah. Müge Cad. 16600, No: 17 Gemlik / Bursa, Turkey,
Authority Having Jurisdiction 920858-PC-105-001 - Design Basis
High Expansion Foam Generator flow rate and required pressure were assumed as 466 l/min @3.4 bar in accordance with Owner Requirements
OmniCADD Hydraulic Calculation Software v. 2.3
December 13, 2019 03:37 PM STR-PRM-CTR-016 Page: 2
GENERAL RESULTS
Total Water Including Hose 933.0 lpm
Additional Allowances 0.0 lpm
Discharge from Sprinklers 933.0 lpm
Source Hose Demand 0.0 lpm
Average Imbalance 0.000 lpm
Maximum Imbalance 0.2 lpm
Maximum Velocity @ Pipe: bl19 3.6 m/s
Maximum Fr. Loss @ Pipe: fm2 0.004 bar/m
Average Density -
Remote Area was not Peaked
Velocity pressures have been used for information only, and are not valid for balancing the system.
SOURCE : s2Static Pressure 9.0 barResidual Pressure 8.0 barFlow 932.0 lpmHose Allowance 0.0 lpmAvailable Pressure 8.0 barRequired Pressure 4.1 barSafety Factor 48.2%, 3.9 barWater Flowing 933.0 lpm
OmniCADD Hydraulic Calculation Software v. 2.3
December 13, 2019 03:37 PM STR-PRM-CTR-016 Page: 3
Water Curves for Src : s2
End Head Pressure Responce 0 @ 0 - E : 0 @ 933Demand Curve @ Src : s2 0 @ 0 - D : 4.1 @ 933Supply Curve @ Src : s2 A : 9 @ 0 - B : 8 @ 932 - C : 8 @ 933
Curve Values - X : bar @ lpm
0
0
500
500
1000
1000
0 0
1 1
2 2
3 3
4 4
5 5
6 6
7 7
8 8
9 9
10 10
BAR
LPM
A
B
C
D
E
OmniCADD Hydraulic Calculation Software v. 2.3
December 13, 2019 03:37 PM STR-PRM-CTR-016 Page: 4
NODES
# Type Value Elevationm
Xm
Ym
Res. Pres.bar
Dischargelpm
s2 Src [...] 0.0 -39.3 65.0 4.1 0.0h19 Head 253.00 0.0 -26.5 -25.0 3.4 466.5h20 Head 253.00 0.0 -52.0 -25.0 3.4 466.5n25 Node - 0.0 -25.0 10.0 3.7 -n24 Node - 0.0 -39.3 10.0 3.8 -n26 Node - 0.0 -53.5 10.0 3.7 -n29 Node - 0.0 -25.0 -25.0 3.5 -n28 Node - 0.0 -53.5 -25.0 3.5 -
OmniCADD Hydraulic Calculation Software v. 2.3
December 13, 2019 03:37 PM STR-PRM-CTR-016 Page: 5
PIPES
## Type Value Elevation
m
Res.Pres.
bar
Discharge
lpm
MaterialHWC
Fittings
SizeNom.Diam.Int.Diam.
LengthEq.Length
Total Lengthm
Fr.Loss
bar/m
Pres.Fr.LossPres.Elev.LossPres.Vel.Loss
bar
Flow
lpm
Velocity
m/s
TypeStart/End Nodes
bl19 h20 Head 253.00 0.0 3.4 466.5 Sch40 2 1.5 0.031 0.141 -466.5 3.6 Branch Linen28 Node - 0.0 3.5 - 120 50.761 3.0 0.000
2E 52.462 4.5 0.064 bl20 h19 Head 253.00 0.0 3.4 466.5 Sch40 2 1.5 0.031 0.141 -466.5 3.6 Branch Line
n29 Node - 0.0 3.5 - 120 50.761 3.0 0.000 2E 52.462 4.5 0.064
cm26 n29 Node - 0.0 3.5 - Sch40 3 35.0 0.005 0.169 -466.5 1.6 Cross Mainn25 Node - 0.0 3.7 - 120 76.142 2.1 0.000
E 77.868 37.1 0.013 cm24 n26 Node - 0.0 3.7 - Sch40 3 35.0 0.005 0.169 466.5 1.6 Cross Main
n28 Node - 0.0 3.5 - 120 76.142 2.1 0.000 E 77.868 37.1 0.013
cm27 n26 Node - 0.0 3.7 - Sch40 3 14.2 0.005 0.086 -466.5 1.6 Cross Mainn24 Node - 0.0 3.8 - 120 76.142 4.6 0.000
T 77.868 18.8 0.013 cm28 n24 Node - 0.0 3.8 - Sch40 3 14.3 0.005 0.086 466.5 1.6 Cross Main
n25 Node - 0.0 3.7 - 120 76.142 4.6 0.000 T 77.868 18.9 0.013
fm2 s2 Src [...] 0.0 4.1 0.0 Sch40 4 55.0 0.004 0.342 933.0 1.9 Feed Mainn24 Node - 0.0 3.8 - 120 101.523 23.0 0.000
4EBGS 102.183 78.0 0.018
OmniCADD Hydraulic Calculation Software v. 2.3
Recommended