Btu Calculator Water To Steam
The simple formula for water is system delivered btu 500 x gpm x system water temperature change.
Btu calculator water to steam. Btu hr to boiler horsepower calculator. Steam property calculator specific enthalpy 1 215 4 btu lbm. Steam energy flow specific enthalpy mass flow steam energy flow 109 277 1 186 4 btu lbm 87 3 klb hr step 2. Includes 53 different calculations.
A btu is an abbreviation for b ritish t hermal u nit which is the amount of energy required to raise 1 pound of water 1 degree fahrenheit at sea level. Equations displayed for easy reference. It is approximately the energy needed to heat one pound of water by 1 degree fahrenheit. Btu is often used as a point of reference for comparing different fuels.
This calculation translates the heat transfer input requirement to bhp. The btu hour to boiler horsepower calculator is used to help size both steam and hot water boilers. Determine feedwater properties and mass flow the feedwater flow rate can be calculated from steam mass flow and blowdown rate. To do so we divide the btu hour by a constant of 33 475.
To 312 f steam. A btu is a relatively small amount of energy. For the low pressure steam typically used in heating systems that ratio is 1 194 btus for every pound of steam the system provides. About equivalent to the heat generated by striking 1 stick match.
Determine feedwater properties and mass flow the feedwater flow rate can be calculated from steam mass flow and blowdown rate. Let s take a look at the formula to see what each piece of it means to help you understand it better. Btu calculator btu formulas for water circulating heat transfer. If your boiler supplies 400 pounds of steam per hour for example you would multiply 400 pounds by 1 194 to arrive at a figure of 477 600 btus.
1 btu 1 055 joules 252 calories 0 293 watt hour or the energy released by burning one match. I m looking at a 50 000 btu boiler with a heat exchanger to heat a 33 000 gallon pool to 90 degrees f. The btu multiplier in the formula is 500. Steam energy flow specific enthalpy mass flow steam energy flow 49 370 1 215 4 btu lbm 38 5 klb hr step 2.
How do i calculate btu size for heating a swimming pool. Online calculator with saturated steam table by pressure. Math is the key to understanding how btus move through a system. How many btu s to change 1 lb of ice 68 f.