A BTU is an abbreviation for British Thermal Unit, which is the amount of energy required to raise 1 pound of water 1 degree Fahrenheit at sea level. A BTU is a relatively small amount of energy... about equivalent to the heat generated by striking 1 stick match.
You can calculate BTU heating or cooling requirements for your process by understanding your application. Some common BTU calculating formulas are shown below.
Weighed Water Test:
Measure the flow of water through your process by timing how long it takes to fill a known volumne container. For example, allow your process water to fill a 5-gallon container. Accurately meaure the water temperature entering and exiting your process. Use this formula to calculate BTU cooling required:
BTU = Flow Rate In GPM x (Temperature Leaving Process - Temperature Entering Process) x 500
BTU Calculator for Weighed Water Test
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