## 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)

where

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

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