Total Flow Rate Considered water velocity (v) Flow rate Q = = = Area x velocity = Axv = = = = d Say 0.133M3/s 3m/s 0.250m 250mm 250mm C) Individual Suction Header size for Sprinkler , Hydrant ,Diesel pump: Flow rate Q = 2850LPM = 171M3/Hr Considered water velocity (v) = 1.5m/s Flow rate Q = Area x velocity 5 = Axv = 4Q/ v = 0.200m = 200mm Say = 200mm D) Individual Delivery Header size for Sprinkler , Hydrant ,Diesel pump: Flow rate Q = 2850LPM = 171M3/Hr Considered water velocity (v) = 3m/sec Flow rate Q = Area x velocity = Axv d = = 0.142m = 142mm Say = 150mm E) Suction size of jockey pumps : Flow rate Q = 180LPM = 10.8M3/Hr = 0.003M3/s Considered water velocity (v) = 1.5m/s Flow rate Q = Area x velocity = Axv d = 4Q/ v = 0.080m = 80.02mm Say = 80mm F) Delivery size jockey pumps: Flow rate Q = 180LPM = 10.8M3/Hr = 0.003M3/s Considered water velocity (v) = 3m/s Flow rate Q = Area x velocity = Axv d = 4Q/ v = 0.065m = 65.01mm Say = 65mm d G) Individual Suction Header size for Water curtain Pump: Flow rate Q Considered water velocity (v) = = 2280 LPM 136.8 M3/Hr = 1.5 m/s 6 Flow rate Q d Say H) Individual Delivery Header size for Water curtain pump: Flow rate Q Considered water velocity (v) Flow rate Q d Say = Area x velocity = Axv = 4Q/ v = 0.200 m = 200 mm = 200 mm = = 2280 LPM 136.8 M3/Hr = 3 = Area x velocity = Axv = = = 0.150 = 150 = 150 m/sec m mm mm 7. However, the friction loss and pipe sizing become an issue when doing this calculation, which is why most contractors and sprinkler designers use software. Flow rate Q for Water Curtain pump = = 2280LPM 136.8M3/Hr No. And I found this one pretty fascinating and it should go into my collection. - - pump Room (Basement-2) 4. They offer a low cost of installation because they dont require a base plate that needs grouting. /Group <> <> Required flow rate: 1,250 gpm. This will ensure that the municipal supply will provide enough volume to meet the system demand. Once that is determined, you can find the appropriate pump model and horsepower in a manufacturers catalog. FOR INFORMATION of pipe in mm = 150 mm H = Head loss in bar. In any case, the demand of the system will dictate the pressure and flow required. (Note that the local code or the insurance carrier may require more than the maximum allowed by NFPA 14.). Ordinary hazard 1: Moderate quantity of combustibles with moderate heat release and eight-foot stockpiles (e.g., mechanical rooms, restaurant kitchens, laundry facilities) The reason for reviewing this is typically to understand what the maximum pressure (no-flow churn) will be in the system to determine whether high-pressure fittings are needed. c$ xl/workbook.xmlV[O8~_i4O!J/Zv;H+MjbglCJ of Pumps = 1No. As you can see, the calculated required pump psi is 180 psi. sprinkler calculators calculations Fire pumps cant be used as pressure-maintenance pumps. If not, request a new test using more hydrants or plot a water supply curve (see Figure 1). Electrical Driven Hydrant Pump 2850 LPM 110M 1 No. For instance, New York City requires a manual round rotor fire pump with every automatic fire pump, and the Ohio EPA requires suction control valves on every fire pump to prevent going below 20 psi in the main. Another consideration regarding the water test is this: Did the city flow enough water to meet 150 percent of the fire pump design point? File Size: 6.11 mb Description Operation of the combustion gas turbine, as of any rotating power equipment, must include a plan Table of Content :- How to Determine Wrench Size ? Hgt&:>'UdE r-!^%0w;0I=g rp|@#y/7=/won)D`&' MV7vT`l2 PK ! endstream stream endobj endobj Make sure the test is taken during the time of highest water use for the area. S. No. All rights reserved. How to Find Branch Hole "Y"? U0# L _rels/.rels ( MO0HBKwAH!T~I$'TG~;#wqu*&rFqvGJy(v*K#FD.W =ZMYbBS7 ?9Lsbg|l!USh9ibr:"y_dlD|-NR"42G%Z4y7 PK ! Diesel Driven Fire Pump 2850 LPM 110 M 1 No. The five types of hazard classifications from NFPA 13 (2010): Standard for the Installation of Sprinkler Systems are: Light hazard: Low quantity of combustibles with low heat release (e.g., churches, hospitals, museums) 'xL6UJ?j8D-?WC!.AAjtE zyp.&}o>(SZRzP+S:F0P@BplY6 ]3Cw ym{ZJj,V_(&w#o{I0vpG;v>fN=3"$fk:?# (The largest currently available is 1,500 gpm.) Subscribe to our newsletters & stay updated, Warren Controls ValveWorks Program Improves Sizing and Selection Process, Pump Selection 101: Understanding Essential Criteria to Maximize Reliability and Efficiency, SFPE Forum on Fire Protection Engineering: Challenges in Storage, F.W. %PDF-1.4 Very good work! /Contents 8 0 R>> Hose stream demand is the amount of water that must be added to the sprinkler system hydraulic calculation to fill the hoses as well as ensure enough supply to operate the sprinklers. Variable-speed pumps are allowed by the code. PTD-DGS-124 Make sure you touch base with the insurance carrier for a particular project, as they may require higher square footage or density requirements, depending on the job. They are the most common type of fire pump on the market, partly because of the ratings available in this style of pump, typically 250 through 5,000 gpm. Friction loss in the most remote standpipe when flowing 500 gpm 03. To calculate pump gpm, two sizing methods are available, the standpipe method and the sprinkler area calculation. Pumping Head For example, if you have a 40,000-square-foot building that is all ordinary group 1, the calculation would be 1,500 x 0.15 (density) = 225 + 250 (hose demand) = 475 gpm total for the fire pump. [emailprotected] endobj Extra hazard 2: High quantity of combustibles with high heat release and flammable and combustible liquids (e.g., plastics processing, flammable liquids spraying). FC9@b)H& 01i p))%J6`L&| pR*c)qm98MMr@(Iwu_;880 uf]- j{_[n{!'66{`u~OlSVq0xNxEd8>x4 02. Area calculations are more difficult. Extra hazard 1: High quantity of combustibles with high heat release and no flammable or combustible liquids (e.g., aircraft hangers, saw mills) Re, SCHEDULE OF FIRE FIGHTING PUMPS & HEAD CALCULATIONS S. No. The flow through each nozzle is calculated by formula. FM Global, for example, requires diesel fuel tanks to be double wall and have a spill basin, and every pump room must have a low pump room temperature alarm. suction pipe) = 4Q/ v = 0.250m = 250mm * Say = 250mm- 2 Nos B) Delivery Header size for Sprinkler, Hydrant , Diesel & Water curtain Pump: No. <>>><>>>] online antiderivative calculator. Horizontal elbows or tees upstream of a fire pump must be 10 pipe diameters from the suction flange on a split-case fire pump. I am a antique Article collector and I sometimes read some new articles if I find them interesting. . C[ PK ! Qty. Horizontal split case pumps are also called double-suction fire pumps, because the water pathways direct water to both sides of the impeller. =1935 LPM = 116.11 m3/Hour Maximum water curtain Pump capacity required= 1935 LPM = 116.11 m3/hour Capacity of pump proposed = 2280 lpm =137 m3/hour PUMP HEAD CALCULATIONS FOR WATER CURTAIN Head requirement for Fire Pump has been decided as below As Per water curtain requirement, there shall be minimum pressure of 1.6 kg/sq.cm at the last water curtain Note: Considering that basement shall be provided the water curtain system: Total Vertical Length of Pipe from Plant Room to remotest water curtain = 9M Total Horizontal Length of Pipe from Plant Room to remotest water curtain= 50 M Total Length of Pipe from Plant Room to remotest water curtain = 59 M Equivalent Length of Pipe Due to Fittings @ 10 % =6M Total Length of Pipe = 65 M Say = 65 M Design calculation for total pump head requirement as per using following pipe diameter. calculations builde ^s|\_ET*&xGF'"e|N&_ D UgZUIFDI92 rRRR]nynABG!sHV4'W+UV$D.W~I|$52|A,B>(rr~u~wr NDP <> ABG To avoid problems during the design and installation process, you should always do your homework and consult with the authority having jurisdiction and insurance representative before you begin. Ordinary hazard 2: Moderate quantity of combustibles with moderate heat release and 12-foot stockpiles (e.g., stages, large library stack rooms, repair garages) City water pressure: 45 psi static; 35 psi residual Description of Pump A. The two most commonly used by designers are solid state soft start and wye-delta closed transition. Flow Rate Pumping Head Qty. Pipe Diameter 150 mm 159 m 35.0 m 64 m 9m 05. By continuing to browse the site you are agreeing to our use of cookies in accordance with our Cookie Policy. When starting a fire pump design, the most important item to consider is the water supply. Downloads 233 ASME *ASME(Inch) *ASME(mm) 2. 21-01-2019 06. S. No. The three most widely used pumps are horizontal split case, inline and vertical turbine. 3 0 obj /Group <> endobj Head of Pump provided 110 m 108 m Head Loss Calculations -Annexure -II Hazen Williams formula H= 6.05 x 10^5 x Q^1.85 x L ---------------------C^1.85 x d^4.87 Where L = Length of pipe in meters = 159 m Q = Discharge in Lpm = 2850 Lpm C = 120 D = Dia. of Pumps Total Flow Rate Considered water velocity (v) Suction pipe Flow rate Q Flow rate Q for Sprinkler & Hydrant pump = = 2850LPM 171M3/Hr No. These two have the best starting characteristics of the approved options on the market. Once you have calculated the gpm and psi requirements for the pump, you need to determine the type of pump that works best for the job. Knowing these location-specific and unique issues before starting your design will help the process go more smoothly and be more successful. Putting these values in the above formula: H= 6.05 x 10^5 x 2850^1.85 x 159 ---------------------120^1.85 x 150^4.87 = 0.85 bar Say = 9 M A) Suction Header size for Sprinkler , Hydrant ,Diesel & water curtain pump: Flow rate Q for Sprinkler & Hydrant pump = 2850 LPM 4 = 171 M3/Hr = 2No. Electrical Driven Curtain Nozzle Fire Pump 2280 LPM 30 M 1 No. Address: Copyright 2022 PDFCOFFEE.COM. : E N E R G Y & C H E M IC A L S G r o u p /Contents 6 0 R>> of Open Nozzles = = 84 2.5 34 Nos. Some good rules to follow are: Make sure the water test is less than a year old. A similar calculation can be used for a non-high rise, by changing the 100 psi to the end head pressure (15 50 psi, depending on the head). Vertical turbine pumps are used in situations where the water supply is below the suction flange of the fire pump, because NFPA 20 requires a positive suction pressure to a fire pump. Make sure the water test is performed as close to the tap point as possible. Refer to NFPA 13 for a more thorough definition of the classifications. 40 Kw 40 Kw pump Room (Basement-2) DETAIL OF WATER CURTAIN NOZZLE PUMP [A] Horizontal Mounted Downward Flow Open Nozzle: Total Length of Pipe Network for water curtain in one zone = 84 m Spacing between Open Nozzles = 2.5 m C/C [Nozzle Manufacturer recommends 2 m for better performance] Nos. One thing that some engineers forget is that the pump will discharge at a much higher pressure at churn (no flow) than at the design point. Q = K x P (As per IS: 9972/ NFPA 13) Where Q = Flow in lpm flowing through nozzle K = Nozzle Factor = 45 (As per manufacturer HD Fire) P = Total Pressure in Bar at flow Q = 1.6 bar Q = 45 x 1.6 = 56.92 lpm Total Flow rate required =34 Nos. 02. Description, SUBJECT : Calculating the total system head in USCS units 7-1: USCS stands for "United States Customary System Units" as. This is a factor because any high rise requires a pressure of 100 pounds per square inch (psi) at the top of the structure while flowing the rated gallons per minute (gpm) of the fire pump. xMo0+H%@bg1u]tpBh=>oqZi5CeEYo,wO,nmq*'Ybl,]]]o&E:xe ~X'pKJf?Y^#2W,Xh.g$frAiYc+^ sprinkler calculators calculations Electrical Driven Jockey Pump 180 LPM 110 M 2 No. }~|L(D3^KD}8MJeH%AIjNtp's`c!5il ocy0+ |f}< 6y/_lzkWo3\kb5G~FQ 7 0 obj hvac xls engineering calculation duct excel sheet Electrical feeds to fire pump controllers must have a two-hour fire rating. KS/JIS 3. The last job parameter you need in order to size the fire pump is the required flow for the systems the pump will be serving (sprinklers, standpipes, or other). If the structure has multiple hazards, the hazard with the highest gpm calculation dictates the pump size. FIRE PUMP SIZE CALCULATION Some jurisdictions have special requirements for fire pumps. Elevation change. PB00if;'\kap P a!9al'tiBW PK ! File Size :- 3597 KB Download More Books This Excel sheet Contains :- 1. Learn how we and our ad partner Google, collect and use data. File Size: 5.00 Mb Content:- 1. calculations builde These programs are used by sprinkler contractors to keep their pipes as small as possible, which controls the cost of the job. You need to know the sprinkler hazard classifications of the building and its contents to determine the design density, and the square footage (area of operation) of each hazard must be calculated. <>>>] A reduced-voltage start also should be considered when connecting to a generator to potentially reduce the size of the generator. Ronald F. Clayton For the example in Figure 2, the parameters are: Building height: 212 feet Putting these values in the above formula: H= 6.05 x 10^5 x 2280^1.85 x 65 ---------------------120^1.85 x 150^4.87 = 0.23 bar Say = 2 PUMP HEAD CALCULATIONS Head requirement for Fire Pump has been decided as below As Per NBC Rule, there shall be minimum pressure of 3.5kg/sq.cm at the highest Fire Hydrant: Note: Considering that Tower shall be provided the Fire fighting system: Total Vertical Length of Pipe from Plant Room to remotest Fire Hydrant = 64 M Total Horizontal Length of Pipe from Plant Room to remotest Fire Hydrant = 80 M Total Length of Pipe from Plant Room to remotest Fire Hydrant = 144 M Equivalent Length of Pipe Due to Fittings @ 10 % =14.4 M Total Length of Pipe = 158.4 M 3 Say = 159 M Design calculation for total pump head requirement as per using following pipe diameter. endobj 12.00 Kw 24.00 Kw pump Room (Basement-2) 5. Case Study: Sebuah pompa di gunakan untuk mengalirkan air pada kapasitas 300 m3/jam pad, PROJECT 6 0 obj We use cookies to provide you with a better experience. hyp{nBNaR! 0 S. No. Project - 28 Storey Residential building with Basement Car park System - Wet Rising Main System (Hydrant Main) Subject: pa r s o n s Additionally, in highly residential areas, peak morning use typically occurs early in the day, between 6:30 and 9 a.m., so that may be the best time for the test. firefighting mists This discussion concentrates on high rises because the pressure calculations for most non-high-rise buildings are determined through the use of software specifically designed for fire sprinkler hydraulic calculations. Then you must add the inside and outside hose stream demand to the area calculation. 04. 106KW 106 KW pump Room (Basement-2) 3. F/p . xnH9Wi -{9({IHVYv9y9f2St2Lh_:;,}'y>}A~Mxs6O/rp QkjYh*#%$dr`vO:j?i .lw"s^H\pY$bIMw6`{:e8uE*-@|cznkS)4zzg'{C*ljcF;l9b_b%N5J{#$s3x~LBya$Xn2I tT+a8xX>>%pP`:$z]A!ph4l~~7gWl:m0EX59$x Per NFPA 20 (2010): Standard for the Installation of Stationary Pumps for Fire Protection, fire pumps are allowed to have a 40 percent rise in pressure from rated flow to churn. 05. This was the first type of pump used for fire protection systems. <> PROCEDURE NO. 04. Electrical Driven Sprinkler Pump 2850 LPM 110 M 1 No. This is true even for normal power considerations, as large-horsepower fire pumps with across-the-line starting put significant strain on power systems. One is for high-rise structures (buildings greater than 75 feet in height, measured from the lowest level of fire department vehicle access to the floor of the highest occupiable story) and one is for non-high-rise structures. Inline fire pumps offer several benefits: Their size and design offer space savings. Inside hoses are generally 1- to 1-inch standpipe hoses that may be connected to the sprinkler system for initial fire attack. 03. In a fully sprinklered structure with standpipes, NFPA 14 (2010): Standard for the Installation of Standpipes and Hose Systems says that the first standpipe requires 500 gpm and each additional standpipe requires 250 gpm, up to a maximum of 1,000 gpm. ;"eyI Assume that the pump is 1,250 gpm for this example. Piping Engineering Technical Interview Questions, Control Techniques Guidelines for the Oil and Natural Gas Industry (Draft), Technical Data HandBook for Butt Weld Pipe Fitting and Forged Steel Fittings, Inspection and Maintenance Instructions For MS-5001 Gas Turbines Models N, P and R, Important Piping Formulas Handwritten Notebook ( "Must Download" ), Learning Kali Linux: Security Testing, Penetration Testing, and Ethical Hacking, Pipes. 4 0 obj firefighting mists A typical design would be to use a combination controller and transfer switch in a cabinet to avoid the need for additional requirements laid out in NFPA 20. PK ! of Pumps Flow rate Q for Water Curtain pump No. E s xl/_rels/workbook.xml.rels ( j0}}?{Rv !FV?}k%o3!|9C?|M kkKE`-jS ~z4lz@vooHOPFbP0}9* v`hJWNgI'?9mVlG_;tx&3j ?\ZH Description Total length of pipe Required residual head Static Head Head loss in Pipe (As per Hazen Williams Formula) Referring Annexure-II Total (2) + (3) + (4) Head of Pump provided Pipe Diameter 150 mm 65 m 16 m 9m 2m 27 m 30 m 2 Head Loss Calculations -Annexure -II Hazen Williams formula H= 6.05 x 10^5 x Q^1.85 x L ---------------------C^1.85 x d^4.87 Where L = Length of pipe in meters = 65 m Q = Discharge in Lpm = 1280 Lpm C = 120 D = Dia. Flow Rate 160 cm in feet, The writer, through this blog, has earned respect from many for all the right reasons.mortgage calculator, Truly, this article is really one of the very best in the history of articles.