# formula for boiler horsepower

### Determining Boiler Capacity from Heating Surface Area - Heat

At 100% rating, for WT. boilers, steaming rate is 3 1/2 lbs saturated steam per sq.ft of heating surface, however dont us this value since WT boiler will produce steam well over 100% rating.For example,a horizontal WT boiler can generate 15.1 to 22.5 lbs of saturated steam per sq ft of H.S..

### boiler heating surface area formula – CFBC Boiler Manufacturer

Boiler Formulas: Common Conversion Factors. Boiler HP x 34.5 Boiler HP x.069 Boiler HP x 33.4 Boiler HP x 139 BTU/Hour Output ч 240 EDR/1000 x 0.5 Lbs of Steam /Hr . simply based on the area of the boiler's heating surface. Each 10 square feet of surface represented 1 boiler horsepower, so a boiler with 100 square feet of

### What is Boiler Horsepower? - Farm Collector

In other words, it takes 970.2 Btu to convert one pound of hot water into steam-- 'from and at 212.' This 970.2 Btu times the 34.5 pounds per hour in the definition of one boiler horsepower equals 33,472 Btu per hour. Generally, it has been the practice to round out the figure to33,470 Btu/hr equals one boiler horsepower.

### How to Calculate Horsepower: 12 Steps (with Pictures) - wikiHow

May 04, 2019 · Multiply the torque by the engine speed. You will be using the formula (RPM * T) / 5252=HP, where RPM is the engine speed, T is the torque, and 5,252 is radians per second. The first calculation you want to do is multiply the torque and the engine speed. For example, a Porsche generates 480 of torque at 2,500RPM.

### BOILER FEED & PUMP SIZING - Cleaver-Brooks

Base flow = Boiler maximum capacity horsepower X 0.069 X C • C = 1.5 for On/Off intermittent operation • C = 1.15 for continuous feed operation 29

### Hydraulic Horsepower Calculator - CalcuNATION

To find hydraulic horsepower, use the equation: HP = (PSI X GPM) / 1714. PSI = Pressure in Pounds per Square Inch. GPM = Flow Rate in Gallons per Minute. Example: Calculate hydraulic horsepower when pressure is 2000psi and flow rate is 20GPM: Horsepower = (2000 x 20) / 1714. Calculated out this gives a hydraulic horsepower of 23.34.

### Boiler Horsepower | Definition of Boiler Horsepower by

Boiler horsepower definition is - a unit for measuring the power of a steam boiler, being the equivalent of 34.5 pounds of steam evaporated from and at 212° F per hour. a unit for measuring the power of a steam boiler, being the equivalent of 34.5 pounds of steam evaporated from and at 212° F per hour

### Calculating Boiler Efficiency - Forbes Marshall

This method calculates boiler efficiency by using the basic efficiency formula- η=(Energy output)/(Energy input) X 100 In order to calculate boiler efficiency by this method, we divide the total energy output of a boiler by total energy input given to the boiler, multiplied by hundred.

### Convert bhp to kW | Boiler horsepower to kilowatts

One Boiler horsepower of power converted to kilowatt equals to 9.81 kW. The answer is: The change of 1 bhp ( Boiler horsepower ) unit of power measure equals = to 9.81 kW ( kilowatt ) as the equivalent measure for the same power type. In principle with any measuring task, switched on professional people always ensure, and their success depends on, they get the most precise conversion results everywhere and every-time.

### Watts to boiler horsepower [w to BHP] conversion tables

How many boiler horsepower in a watt: If P w = 1 then P BHP = 0.000101931042 × 1 = 0.000101931042 BHP. How many boiler horsepower in 66 watts: If P w = 66 then P BHP = 0.000101931042 × 66 = 0.006727448772 BHP. Note: Watt is a metric unit of power. Boiler horsepower is an imperial or United States customary unit of power.

### Horsepower to Btu Per Hour Conversion (hp to Btu/h)

Since one boiler horsepower is equal to 33,471.411364 btu per hour, the formula to find btu per hour is to multiply boiler horsepower by 33,471.411364. For example, here's how to convert 5 boiler horsepower to btu per hour using the formula.

### Boiler Ratings and Boiler Load - Alken-Murray

Maximum continuous rating is the hourly evaporation that can be maintained for 24 hours. To convert horsepower (hp) into lbs of steam: Multiply hp x 34.5 Example: 100 hp x 34.5 = 3450 lbs of steam per hour To convert lbs of steam to hp: Divide steam per hour by 34.5 Example: 8625 lbs of steam ÷ 34.5 = 250 hp boiler.

### Johnston Boiler Company Boiler Glossary

Steam Boilers & Appurtenances, Combustion & Instrumentation Controls, Deaerators, Exhaust Systems, Heat Exchangers, Heat Pipes, Industrial Pumps, Water Heaters, Water Softeners, Boiler Seminars, Services & Parts. 3 Common Boiler Formulas BOILER HORSE POWER What is the boiler horsepower of a boiler generating 21,500 lbs of steam per hour at 155 psi?

### BOILER FEED & PUMP SIZING - Cleaver-Brooks

b) Boiler maximum capacity = 250 HP c) Boiler safety valve setting = 125 psig d) Pressure safety factor = 3% above boiler’s safety valve setting e) Boiler operating pressure = 100 psig f) Continuous Boiler Blowdown flow - Required g) Bypass recirculation flow – Required h) Altitude – Sea level

### How to Convert BTU to Horsepower | Sciencing

Apr 24, 2017 · Converting BTU to Horsepower. For example, the power of a boiler is often expressed in BTU, and car engines' power is often expressed in horsepower. To convert BTU per hour to horsepower use the following equation: Power (Horsepower) = Power (BTU per hour) x 2,545.

### Boiler Horsepower Calculation - Boiler and Pressure Vessel

The current equivalency is either 41,844 btu/hr heat input or 33,475 heat output from burners. Efficiency of the burners is assumed 80%. Now if you have an older fire tube boiler, the boiler horsepower is based on heating surface and the equivalency is 1 BoHp= 10 sq.ft. of heating surface.

### Pump Design Equations Formulas Calculator Water Horsepower

water horsepower: Q = 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

### Boiler Horsepower - Engineering ToolBox

A common definition of one boiler horsepower is the amount of energy required to produce 34.5 pounds (15.65 kg) of steam per hour at pressure and temperature 0 psig (0 bar) and 212 o F (100 o C) - with feed water at pressure 0 psig and temperature 212 o F.

### Horsepower to Kilowatts Conversion (hp to kW) - Inch Calculator

Boiler Horsepower. Boiler horsepower is used to measure the power of a boiler to generate steam. One boiler horsepower is equal to the power needed to evaporate 34.5 pounds in one hour. Boiler horsepower can be abbreviated as hp(S), for example 1 boiler horsepower can be written as 1 hp(S).

### Convert bhp to MW | Boiler horsepower to megawatts

Diferent power units conversion from Boiler horsepower to megawatts. Between bhp and MW measurements conversion chart page. Convert 1 bhp into megawatt and Boiler horsepower to MW.

### Proper sizing of Boiler Feedwater System

One boiler horsepower = 34.5 lbs/hr of steam (or water) from and at 212o F. We also know that one-gallon of water weighs 8.37 lbs. To calculate the storage tank needed use the following formula: BHP X 34.5 ÷ 8.337 lbs ÷ 60 min. X 10 = minimum useable capacity in gallons.

### Steam Capacity Conversion Table | Industrial Controls

The receiver tank should be able to hold five minutes worth of condensate for boilers up to 200 BHP and 10 minutes of condensate for boilers over 200 BHP. An additional 33 percent should be added as a safety factor. One BHP (Boiler Horsepower) will produce 0.069 gallons per minute of condensate. Developing a formula results in:

### Horsepower - Wikipedia

Boiler horsepower. Boiler horsepower is a boiler's capacity to deliver steam to a steam engine and is not the same unit of power as the 550 ft-lb/s definition. One boiler horsepower is equal to the thermal energy rate required to evaporate 34.5 lb of fresh water at 212 °F in one hour.

### Boiler Horsepower to Btus Per Hour | Kyle's Converter

A boiler horsepower is more than 13 times larger than mechanical horsepower (~engine output). 1 BTU (International Table) per Hour: Approximately 0.293 071 Watts (SI).

### Calculator: Horsepower and air flow

Estimating horsepower by air flow. For example, a stock 1,600 head flows about 61 CFM. Therefore, the most you could expect with bolt-on modifications would be about 88 horsepower. This calculator makes use of the formula: Horsepower = (Air flow × 1.6) × 0.9.

### Boiler Cheat Sheet - Novatherm Boilers

500 hp x 34.5 lb / hp hr = 17,250 lb / hr produced by the boiler. This is what we call the nominal boiler capacity. In reality, the operating pressure and feedwater temperature must be taken account of to calculate the real boiler capacity.

### Convert bhp to Btu/h | Boiler horsepower to BTU's per hour

One Boiler horsepower of power converted to BTU per hour equals to 33,471.40 Btu/h. The answer is: The change of 1 bhp ( Boiler horsepower ) unit of power measure equals = to 33,471.40 Btu/h ( BTU per hour ) as the equivalent measure for the same power type. In principle with any measuring task, switched on professional people always ensure,

### Boiler horsepower to kilowatts [BHP to kW] conversion tables

How to convert boiler horsepower to kilowatts [BHP to kW]:. P kW = 9.81055407 × P BHP. How many kilowatts in a boiler horsepower: If P BHP = 1 then P kW = 9.81055407 × 1 = 9.81055407 kW

### Formulas boiler | Horsepower | Combustion

Formulas and Conversion Charts. A. Boiler Formulas Boiler Horse Power (HP): BHP =(Lb/hr) * FE / 34.5 where Lb/hr is pounds of steam per hour and FE is the factor of evaporation. Cycle of Concentration of Boiler Water: CYC=Bch / FCh where Bch is ppm water chlorides and FCh is ppm feedwater chlorides.

### How do I calculate the power requirement for an electric boiler?

The basic formula used for electric boilers are as given below: 10 KW = 1 BHP (boiler horsepower)1 KW = 3412 BTU/HR. 1 KW = 3.48 LB/HR steam (from & at 212 deg. F.) Amp draw (1 PH) = watts / volts. Amp draw (3 PH) = watts / (volts X 1.732) (N.E.C. requires service for 125% of amp draw.) 1 cubic foot = 7.461 gallons water.

### Fuel Flow Calculations for Horsepower

It may use approx 24 gallon per hour to make 300 HP. 1 Gallon of fuel weighs approx 5.92 lbs and for every 1 lb of fuel burned approx 19,000 BTU’s of energy is released. So 24 gallons x 5.92 lbs = 142 pounds per hour to make 300 HP.

### Horsepower Formula - ScienceStruck

Mar 06, 2018 · Horsepower Formula. Boiler horsepower (BHP) is a power unit used for measuring the power output of boilers. It was widely used in the past, though it's now mostly confined to North America. 1 Boiler Horsepower = 9,809.5 W One more unit used for power measurement is hydraulic horsepower.

### Estimating steam locomotive horsepower

Horsepower is the rate of doing work, for a RR locomotive it is the rate of delivering drawbar pull. Horsepower is limited by the ability of the boiler to deliver steam at the design pressure and the rate that the cylinders can apply the steam to the pistons, and exhaust the other side.

### Horsepower Calculator

1 watt = 0.0001019419950048 boiler horsepower; Example calculation. Force = 12,560 newtons. Distance = 45 yards. Time = 36 seconds. Result: Power = 14,356.08 watt or 14.36 kilowatt. A power of 14,356.08 watt is approximate equal to 19.52 horsepower (metric) or to 19.24 electrical horsepower or to 19.25 mechanical horsepower or to 1.46 boiler horsepower

### BOILER SELECTION CONSIDERATIONS - Cleaver-Brooks

For this reason, a watertube boiler is generally used if pressure above 350 psig design is needed. Firetube boilers are usually built similar to a shell and tube heat exchanger. A large quantity of tubes results in more heating surface per boiler horsepower, which greatly improves heat transfer and efficiency.

### hp(S) - Horsepower, Boiler. Conversion Chart / Units of Power

This is a conversion chart for horsepower, boiler (Common Units). To switch the unit simply find the one you want on the page and click it. You can also go to the universal conversion page. 2. Enter the value you want to convert (horsepower, boiler). Then click the Convert Me button.

### Horsepower Calculator

The most common definition of horsepower, mechanical horsepower is the horsepower James Watt invented in 1782. Metric Horsepower, hp(M) —75 kgf-m per second, approximately 735.499 watts Boiler Horsepower, hp(S) —34.5 pounds of water evaporated per hour at 212 degrees Fahrenheit, approximately 9,809.5 watts.

### Boiler Formulas - Debco Equipment

Boiler Formulas: Common Conversion Factors. Boiler HP x 34.5 Boiler HP x.069 Boiler HP x 33.4 Boiler HP x 139 BTU/Hour Output ч 240 EDR/1000 x 0.5 Lbs of Steam /Hr ч 500 = Lbs. of Steam per Hour = Evaporation Rate Gallons per Minute (GPM) = MBTU per Hour Output (MBH) = Sq. Feet of Equivalent Direct Radiation (EDR) = Sq.

### Boiler horsepower to kilowatts [BHP to kW] conversion tables

How many kilowatts in a boiler horsepower: If P BHP = 1 then P kW = 9.81055407 × 1 = 9.81055407 kW. How many kilowatts in 45 boiler horsepower: If P BHP = 45 then P kW = 9.81055407 × 45 = 441.47493315 kW. Note: Boiler horsepower is an imperial or United States customary unit of power. Kilowatt is a metric unit of power.