# how to calculate pump discharge pressure pdf

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2008-4-20 · CALCULATE THE PRESSURE HEAD ANYWHERE ON THE DISCHARGE SIDE OF THE PUMP Equation [4] is the result of an energy balance between points 1 and 2. The same process of making an energy balance can be applied between any two points for example points 1 and X (see Figure 3). We can do an energy balance between points 1

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• ### HOW TO CALCULATE PRESSURE ANYWHERE IN A PUMP

2014-10-29 · Pump must produce sufficient pressure to overcome forces of gravity in lifting fluid, frictional forces associated with moving the fluid through the pipe, and any system back pressure forces that may exist. 4 . ... Calculate Discharge Pressure . 14 . Storage Tank to a Process Tank

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• ### Pump Hydraulics - Tuthill Pump

2016-5-23 · Common Pump Formula Product Viscosity where: 2 = Kinematic viscosity (mm /s) ... = total discharge head H s = total suction head Total Discharge Head H t = h t + h ft + p t where: h t = static discharge head h ft = pressure drop in discharge line p t > 0 for pressure p t < 0 for vacuum p t = 0 for open tank Total Suction Head H s = h s + h fs

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• ### Common Pump Formula - Home - M.G. Newell

2008-4-19 · flow through the pump is 500 USgpm and it is located on the basement floor. There is a filter on the suction line and a heat exchanger on the discharge side of the pump. The manufacturer of the filter specifies that there will be a pressure drop of 3 psi at 500 gpm.

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• ### TOTAL HEAD, N.P.S.H. AND OTHER CALCULATION

2020-9-9 · Discharge pressure is the amount of gage pressure that the pump must produce to force the liquid out of the pump and into the system piping, as well as overcome the potential combination of: •All pressure loss in pipe from elbows, valves, filters, connections etc.

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• ### Lesson 1: Gear Pump Basics

2017-8-10 · During commissioning, an initial assessment the pump Head by reading the Discharging pressure gauge (P2 as above image, ex: 1 bar ~ 10 m height), and it’s not correct concept because of the Pump Head is not quite the same thing as a Discharge Pressure.. So what is the difference between pressure and head then?. While some pump manufacturers that use pressure (differential pressure …

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• ### Pump Head vs Discharge Pressure (Easy explanation

2016-12-2 · Discharge Suction Impeller Eye Impeller pFigure 1. In a centrifugal pump, a rotating impeller imparts energy to the liquid moving through the pump. Outlet Inlet Low-Pressure Fluid High-Pressure Fluid Fluid Carried Between Teeth and Case pFigure 2. A gear pump is a type of positive-displacement pump …

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• ### Back to Basics Pump Sizing - AIChE

2020-12-11 · basic equation every pump operator needs to calculate when operating the fire pump. today, many pump pan-els have flow meters that allow the pump operator to match the readout on the pump panel with the gallon-per-minute (gpm) flow of the selected nozzle. this is a disservice to the integrity of the pump operator. a knowledgeable operator

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• ### Every Pump Operator’s Basic Equation

2004-1-30 · How can i calculate the estimated discharge pressure of a positive disp. pump at a given flow only. The curves are not avialible, the vendor does not exist any more and no data at all for this pump. The pump was not in use and we will connect it to new process and need to estimate the disch. pressure …

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• ### Relationship between pump total head and discharge

2019-11-26 · The discharge pressure of a pump is not the same as the value in which the total head shown in the performance curve of the pump is converted into pressure. 1 . Abbreviation H . Total head (m) Hd Discharge head referred to pump shaft center (m) Hs : Suction head referred to pump shaft center (m) : Discharge velocity (m/s) vs : Suction velocity ...

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• ### Pumps Calculation | Pump | Pressure

2017-7-6 · 1. Calculate the absolute total pressure at pump suction. 2. Calculate the absolute total pressure at pump discharge. 3. Determine the required differential head. 4. Determine the pump hydraulic power. 5. Determine the pump actual horse power. 6. Calculate NPSHA INPUT DATA SYMBOLS UNITS

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• ### Pressure Distribution, Orifice, Pipe & Pump Sizing

2019-8-23 · pressure head and volume of discharge at the orifices in each lateral. Additional considerations must be made for laterals at differing ... Calculate the pressure head loss in delivery pipe including fittings: Delivery Piping ... Then calculate total flow requirement for pump: Select the appropriate pump by reviewing the pump curve of available ...

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• ### Pump Basics - HALL MACH

2017-9-4 · losses in the pipes, fittings, and valves from the feed source to the pump inlet flange. Include losses in the tank discharge port. Friction charts are available to calculate losses in pipes and fittings. Manufacturers can supply friction loss values for special components. – 4. Vapor Pressure - Reading from the “Properties of Water ...

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• ### Pump Design Equations Formulas Calculator

flow rate or discharge: H = total head: n = pump efficiency: BHP = brake horsepower: NPSH = net positive suction head: V = velocity of fluid or liquid: p = impeller inlet pressure: p v = vapor pressure of fluid or liquid: SW = specific weight of fluid or liquid: g = acceleration of gravity

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• ### Positive Displacement Pump Basics - Fristam

2015-6-4 · total pressure against which a pump must work. Generally the suction pressure is negligible and the discharge pressure makes up nearly all of the dif-ferential pressure. If the suction gauge pressure is positive, the differential pressure across the pump is the discharge pressure minus the suction gauge pressure.

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• ### How to calculate discharge flow rate of a pump with

From the pressure information (pump differencial head) and the pump performance curve (head as function of the flow rate) you can calculate the flow rate. Cite 3rd Jul, 2016

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• ### Pump calculations - The Engineering Mindset

2017-9-11 · Pump calculations how to calculate pump speed, head pressure, rpm, volume flow rate, impeller diameter In this article we learn how to perform pump calculations in both imperial and metric units to assess pumping performance following the change of flow rate, pump speed, head pressure …

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• ### Certified Pump Operator HYDRAULICS WORK BOOK

2016-2-23 · Engine pressure is the amount of pressure, in pounds per square inch (PSI), indicated on the pressure gauge or any given orifice discharge gauge. Stream pattern remaining the same, engine pressure is the major controlling factor that changes nozzle pressure and volume discharge. Adjusting the pump throttle changes engine pressure. The formula

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• ### Static lift Static discharge - University of Florida

2009-4-27 · If the pump is lo- additional pressure head for a relatively short time. cated at the elevation below the water surface el-evation, the static lift is negative. Friction loss Static dischargeStatic discharge When water flows through a pipe there is a loss The static discharge head is a measure of the el- …

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• ### Basic Hydraulics Prework Wildfire 2012 - Home | US

Elements that you must have as a fire engine operator in order to correctly calculate pump discharge pressure (PDP) are: 1. Length of hose in the hoselay 2. Diameter of hose 3. Volume flow rate 4. Elevation differential (vertical rise or fall) between hoselay and pump 5.

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2019-12-10 · Where hD = Discharge head. Pressure gauge reading in PSI multiplied by 2.31 for fresh cool water. hB = Bowl head. Actual head in feet developed by the bowl assembly. hL = Lift. Elevation difference in feet between the pumping water level and the pressure gauge. hP = Internal pump loss. Pump column loss plus discharge head loss in feet.

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• ### Measuring Pump Capacity for Irrigation System Design

2017-10-17 · to the pump discharge. All components must be sized and pressure-rated to permit the measurement of the complete range of pressures and discharge rates that the pump produces. 1. Measure the head-discharge curve in the following steps: 2. Connect the head-discharge apparatus to the pump discharge with sufficient lengths of straight pipe to obtain

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• ### Positive Displacement Pump Basics - Fristam

2015-6-4 · total pressure against which a pump must work. Generally the suction pressure is negligible and the discharge pressure makes up nearly all of the dif-ferential pressure. If the suction gauge pressure is positive, the differential pressure across the pump is the discharge pressure minus the suction gauge pressure.

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• ### BASIC PUMP FUNDAMENTALS - AIRAH

2018-6-19 · Pump Duty: Flow Rate (Q) • The units typically used are m³/h, m³/s, l/s, l/h • The flow rate of a centrifugal pump is independent of the density of the fluid being pumped • The viscosity of the fluid being pumped affects the flow rate of the pump. The higher the viscosity, the lower the flow and the lower the viscosity the higher the flow • Viscosity will change with temperature

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• ### Pump calculations - The Engineering Mindset

2017-9-11 · Pump calculations how to calculate pump speed, head pressure, rpm, volume flow rate, impeller diameter In this article we learn how to perform pump calculations in both imperial and metric units to assess pumping performance following the change of flow rate, pump speed, head pressure …

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• ### Static lift Static discharge - University of Florida

2009-4-27 · If the pump is lo- additional pressure head for a relatively short time. cated at the elevation below the water surface el-evation, the static lift is negative. Friction loss Static dischargeStatic discharge When water flows through a pipe there is a loss The static discharge head is a measure of the el- …

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• ### Certified Pump Operator HYDRAULICS WORK BOOK

2016-2-23 · Engine pressure is the amount of pressure, in pounds per square inch (PSI), indicated on the pressure gauge or any given orifice discharge gauge. Stream pattern remaining the same, engine pressure is the major controlling factor that changes nozzle pressure and volume discharge. Adjusting the pump throttle changes engine pressure. The formula

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• ### How to Calculate Total Head - Strongman Pumps

Discharge Pressure Required at the discharge outlet pipework. Example: Static Head = from the ‘Pump Set Depth’ to the discharge pipework outlet at its highest point. Let’s say as an example it is 45 metres (35m below ground and 10m above ground).

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• ### TOPIC 2: FLOW IN PIPES AND CHANNELS

2013-7-9 · 7/9/2013 1 TOPIC 2: FLOW IN PIPES AND CHANNELS OBJECTIVES 1. Calculate the friction factor for a pipe using the Colebrook-White equation. 2. Undertake head loss, discharge and sizing calculations for single pipelines. 3. Use head-loss vs discharge relationships to calculate flow in pipe networks. 4.

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• ### Pumps Calculation | Pump | Pressure

2017-7-6 · 1. Calculate the absolute total pressure at pump suction. 2. Calculate the absolute total pressure at pump discharge. 3. Determine the required differential head. 4. Determine the pump hydraulic power. 5. Determine the pump actual horse power. 6. Calculate NPSHA INPUT DATA SYMBOLS UNITS

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• ### Relationship between pump total head and discharge

2019-11-26 · The discharge pressure of a pump is not the same as the value in which the total head shown in the performance curve of the pump is converted into pressure. 1 . Abbreviation H . Total head (m) Hd Discharge head referred to pump shaft center (m) Hs : Suction head referred to pump shaft center (m) : Discharge velocity (m/s) vs : Suction velocity ...

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• ### Calculate pump and engine discharge pressure

2021-5-13 · Calculate pump and engine discharge pressure ppump,d and peng,d based on tubing performance. Calculate pump friction-induced pressure loss. Calculate required engine pressure . Calculate pressure change Dpinj from surface to engine depth in the power fluid injection tubing based on single-phase flow.

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• ### Basic Hydraulics Prework Wildfire 2012 - Home | US

Elements that you must have as a fire engine operator in order to correctly calculate pump discharge pressure (PDP) are: 1. Length of hose in the hoselay 2. Diameter of hose 3. Volume flow rate 4. Elevation differential (vertical rise or fall) between hoselay and pump 5.

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2019-12-10 · Where hD = Discharge head. Pressure gauge reading in PSI multiplied by 2.31 for fresh cool water. hB = Bowl head. Actual head in feet developed by the bowl assembly. hL = Lift. Elevation difference in feet between the pumping water level and the pressure gauge. hP = Internal pump loss. Pump column loss plus discharge head loss in feet.

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• ### How to calculate discharge flow rate of a pump with

From the pressure information (pump differencial head) and the pump performance curve (head as function of the flow rate) you can calculate the flow rate. Cite 3rd Jul, 2016

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• ### Certified Pump Operator HYDRAULICS WORK BOOK

2016-2-23 · Engine pressure is the amount of pressure, in pounds per square inch (PSI), indicated on the pressure gauge or any given orifice discharge gauge. Stream pattern remaining the same, engine pressure is the major controlling factor that changes nozzle pressure and volume discharge. Adjusting the pump throttle changes engine pressure. The formula

Get Price
• ### Pump Design Equations Formulas Calculator

flow rate or discharge: H = total head: n = pump efficiency: BHP = brake horsepower: NPSH = net positive suction head: V = velocity of fluid or liquid: p = impeller inlet pressure: p v = vapor pressure of fluid or liquid: SW = specific weight of fluid or liquid: g = acceleration of gravity

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• ### Condenser Water Pump Calculator - FINAL

2018-9-6 · Absolute Pressure: The absolute pressure is used to calculate the net positive suction head available. The absolute pressure is the pressure acting upon the fluid at the cooling tower. This is also known as atmospheric pressure. Absolute pressure varies as a function of elevation. At sea level, the absolute pressure is 14.7 PSIA or 34 feet of head.

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• ### Types and Performance of Pumps and Compressors

2020-8-25 · 1. In a Centrifugal Pump, NPSH varies as a function of flow determined by pressure 2. In a Positive Displacement Pump, NPSH varies as a function of flow determined by speed. Reducing the speed of the Positive Displacement Pump, reduces the NPSH Affinity Laws The turbo machine affinity laws are common used for pumps and fans to calculate

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• ### Calculate pump and engine discharge pressure

2021-5-13 · Calculate pump and engine discharge pressure ppump,d and peng,d based on tubing performance. Calculate pump friction-induced pressure loss. Calculate required engine pressure . Calculate pressure change Dpinj from surface to engine depth in the power fluid injection tubing based on single-phase flow.

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• ### Pumps Calculation | Pump | Pressure

2017-7-6 · 1. Calculate the absolute total pressure at pump suction. 2. Calculate the absolute total pressure at pump discharge. 3. Determine the required differential head. 4. Determine the pump hydraulic power. 5. Determine the pump actual horse power. 6. Calculate NPSHA INPUT DATA SYMBOLS UNITS

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• ### How To Calculate Npsh And Discharge Pressure For

2016-3-12 · How To Calculate Npsh And Discharge Pressure For Two Pumps - posted in Refining, Hydrocarbons, Oil, and Gas: Hi all I have one pump system as attached file, please give solution to calculate NPSHa and discharge pressure for each pump. When two pumps run is same time, which flow rate will be select to calculate NPSHa and discharge for each pump to ensure two pumps can run at …

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• ### How to calculate discharge flow rate of a pump with

From the pressure information (pump differencial head) and the pump performance curve (head as function of the flow rate) you can calculate the flow rate. Cite 3rd Jul, 2016

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• ### Condenser Water Pump Calculator - FINAL

2018-9-6 · Absolute Pressure: The absolute pressure is used to calculate the net positive suction head available. The absolute pressure is the pressure acting upon the fluid at the cooling tower. This is also known as atmospheric pressure. Absolute pressure varies as a function of elevation. At sea level, the absolute pressure is 14.7 PSIA or 34 feet of head.

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• ### How to find pump size and pump head calculation

2015-6-11 · Discharge static head = Discharge vessel gas pressure head + elevation of discharge pipe outlet – elevation of pump centre line. The discharge pipe outlet may be above the surface of the liquid in the discharge vessel or it may be submerged as shown in these 3 diagrams. Pump Discharge Above Liquid Surface. Submerged Pump Discharge Pipe

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• ### exam 01 (49).pdf - Question A pump operates

The value of specific volume V is 1.003 Calculate the work shaft at isentropic conditions as follows: Therefore, the isentropic shaft work is 1.9052 kJ/kg. The efficiency is related to the actual change in enthalpy by the following equation: Here, is the maximum change in enthalpy obtained from an adiabatic pump operated at isentropic conditions..

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• ### Pump sizing calculations - sample problem -

The maximum height for the 6' discharge line above the pump discharge nozzle is 12m. The discharge vessel operates at a pressure of 3 barg. There is no control valve in the discharge line. Discharge line to be assumed 100m long considering all the fittings and valves. Assume pump efficiency to be close to 70% and motor efficiency to be close to ...

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• ### Centrifugal Pumps - Engineering ToolBox

2021-5-7 · p 1 = pressure at inlet (N/m 2) ρ = density (kg/m 3) g = acceleration of gravity (9.81) m/s 2. v 2 = velocity at the outlet (m/s) Head described in simple terms. a pump's vertical discharge 'pressure-head' is the vertical lift in height - usually measured in feet or m of water - at which a pump can no longer exert enough pressure to move water.

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• ### Sizing Pressure-Relief Devices - AIChE

2013-11-4 · The set pressure of a relief device is the pressure at which the device operates. For spring-operated relief valves, small amounts of leakage start to occur at 92–95% of the set pressure. A relief device’s overpressure is the pressure increase over its set pressure, usually expressed as a percentage of the set pressure.

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• ### Pressure Distribution, Orifice, Pipe & Pump Sizing

2019-8-23 · pressure head and volume of discharge at the orifices in each lateral. Additional considerations must be made for laterals at differing ... Calculate the pressure head loss in delivery pipe including fittings: Delivery Piping ... Then calculate total flow requirement for pump: Select the appropriate pump by reviewing the pump curve of available ...

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• ### CIR1133/AE067: Measuring Pump Capacity for

Discharge Pressure. The discharge pressure can be measured easily and inexpensively using a standard pressure gauge. Standard pressure gauges are available in 15, 30, 60 and 100 psi (100, 200, 400 or 700 kPa) ranges for about 10. Select a pressure gauge that is accurate within the range of pressures that the pump can produce.

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• ### The Mathematics of Pumping Water - Royal Academy of ...

2014-5-14 · the reservoir varies but the discharge level in the receiving tanks remains constant as the water is discharge d from a point above the water level. The pump is required to pass forward a flow of 2500 m 3 /hr to the receiving tank. The operating pressure of a pumped system is

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• ### Boiler Feed Pump (BFP)

2021-5-11 · Feed pump discharge pressure Pressure MPa Boiler pressure Approx.38 MPa 45 40 35 30 25 20 15 10 5 0 31 MPa Approx.30 MPa Approx.20 MPa 17 MPa 25 MPa Ultra-supercritical (USC) 1967 1989 Supercritical Fig. 1 Boiler pressure and BFP discharge pressure Table 1 BFP specifications for 700 MW USC thermal power plant Purpose Main feed water Start-up ...

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• ### WARREN PUMPS Pressure Pulsations Generated by

2012-5-8 · a cessation of pressure generation for the duration of the return or suction stroke. During this time, the discharge pressure decreases until the next discharge stroke occurs. This form of pumping action results in a pressure pulsation of significant magnitude. In a centrifugal pump a pressure pulse is developed as each

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• ### Pump sizing calculations - sample problem -

The maximum height for the 6' discharge line above the pump discharge nozzle is 12m. The discharge vessel operates at a pressure of 3 barg. There is no control valve in the discharge line. Discharge line to be assumed 100m long considering all the fittings and valves. Assume pump efficiency to be close to 70% and motor efficiency to be close to ...

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• ### Course Title: Design Considerations For Hydronic Pump ...

2012-5-29 · Total Head is the difference between the head at the discharge vs. the head at the inlet of the pump. It is sum of discharge head, suction lift and friction loss. Total Head is a measure of a pump's ability to push fluid through a system. This parameter (with the flow) is a more useful term than the pump discharge head since it is

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• ### Estimating Water Flow From Pipes

2009-2-7 · DISCHARGE FROM PIPES FLOWING PARTIALLY FULL Rate of flow in gallons per minute Y Inside diameter of pipe - “D” in inches D 4 6 8 10 12 0.1 142 334 579 912 1310 0.2 128 302 524 825 1185 0.3 112 264 457 720 1034 0.4 94 222 384 605 868 0.5 75 176 305 480 689 0.6 55 130 226 355 510 0.7 37 88 152 240 345 0.8 21 49 85 134 194 0.9 8 17 30 52 74 1 ...

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