Steam boilers output deserve to be to express in Boiler Horsepower, MBTU or in Pounds of steam delivered every hour

Boiler pack - the volume of a vapor boiler - is frequently rated as boiler equine powers, lbs of vapor delivered per hour, or BTU.

You are watching: 1 lb of steam to btu

Lbs heavy steam delivered per Hour

Large boiler capacities are often given in lbs of steam evaporated every hour under specified steam conditions.

BTU - British heat Units

Since the quantity of steam delivered varies through temperature and also pressure, a common expression that the boiler capacity is the warmth transferred with time expressed as British Thermal units per hour. A boilers volume is normally expressed as kBtu/hour (1000 Btu/hour) and can it is in calculated as

W = (hg - hf) m (1)


W = boiler capacity (Btu/h, kW)

hg = enthalpy vapor (Btu/lb, kJ/kg)

hf = enthalpy condensate (Btu/lb, kJ/kg)

m = vapor evaporated (lb/h, kg/s)

Boiler speech - BHP

The Boiler horsepower (BHP) is

the quantity of energy required to produce 34.5 pounds of heavy steam per hour at a pressure and also temperature that 0 Psig and 212 oF, with feedwater in ~ 0 Psig and also 212 oF.

A BHP is indistinguishable to 33,475 BTU/Hr or 8430 Kcal/Hr and it have to be noted that a boiler horsepower is 13.1547 times a typical horsepower.

1 horsepower (boiler) = 33445.6 Btu (mean)/hr = 140671.6 calorie/min (thermo) = 140469.4 calorie (mean)/min = 140742.3 calorie (20oC)/min 9.8095x1010erg/sec = 434107 foot-pound-force/min = 13.1548 speech (mech) = 13.1495 speech (electric) = 13.3372 horsepower (metric) = 13.1487 speech (water) = 9809.5 joule/sec = 9.8095 kilowatt

Horsepower (hp) can be converted right into lbs of vapor by multiply hp with 34.5.

instance - Boiler speech to lbs of steam Conversion

200 hp x 34.5 = 6900 lbs of steam per hour

Lbs of heavy steam can be converted to hp by splitting lbs vapor per hour through 34.5

example - Lbs of heavy steam to Boiler speech Conversion

5000 lbs of heavy steam / 34.5 = 145 hp boiler

Converting Boiler steed Power (BHP) to kBtu/hr

Boiler steed Power(BHP)(kBtu/hr)
4.5 151
6 201
9 301
15 502
20 670
30 1004
45 1507
50 1674
60 2009
70 2344
80 2678
100 3348
1BHP = 33479 Btu/hr 1 Btu/hr = 0.293 Watts

Engineering ToolBox - SketchUp extension - virtual 3D modeling!


Add standard and customized parametric materials - choose flange beams, lumbers, piping, stair and much more - to your Sketchup model with the design ToolBox - SketchUp extension - enabled for use with the amazing, funny and totally free SketchUp Make and also SketchUp Pro.Add the engineering ToolBox extension to her SketchUp native the SketchUp pro Sketchup extension Warehouse!


We don"t collect details from our users. Just emails and answers are saved in ours archive. Cookies are only supplied in the browser to enhance user experience.

Some of our calculators and applications permit you conserve application data come your neighborhood computer. This applications will - due to web browser restrictions - send data in between your browser and our server. Us don"t save this data.

Google usage cookies because that serving our ads and handling visitor statistics. Please review Google Privacy & state for much more information around how friend can control adserving and the info collected.

AddThis usage cookies for taking care of links to society media. Please read AddThis Privacy for much more information.

Advertise in the ToolBox

If you want to promote your assets or solutions in the engineering ToolBox - please usage Google Adwords. You deserve to target the design ToolBox by utilizing AdWords managed Placements.


This page have the right to be quote as

Engineering ToolBox, (2008). Boiler Capacity. accessible at: .

See more: Can You Take Ibuprofen With Hydroxyzine (Oral Route) Side Effects

Modify accessibility date.