 | United States. Department of Agriculture - Agriculture - 1931 - 1086 pages
...commonly measured by a unit called the British thermal unit, usually abbreviated B. tu, which is the heat necessary to raise the temperature of 1 pound of water 1° F. The reason that the heat required to raise 1 pound of water 1° F. is taken as the unit is because... | |
 | United States. Bureau of Fisheries - Fisheries - 1926 - 760 pages
...measurements is the "calorie." Speaking in terms of the everyday units of measurement, a calorie is the amount of heat necessary to raise the temperature of 1 pound of water 4° F. ; or, stating it another way, 1 pound of starch, if completely burned to produce heat and energy... | |
 | Agriculture - 1914 - 824 pages
...water from 61° to 62° F. For practical purposes, however, it may be considered the heat required to raise the temperature of 1 pound of water 1 degree Fahrenheit. Sensible heat. — Sensible heat is the heat that may be felt by the hand or measured by a thermometer.... | |
 | Cast-iron - 1915 - 750 pages
...thermal unit, commonly abbreviated BTU One British thermal unit is the quantity of heat that is required to raise the temperature of 1 pound of water 1 degree Fahrenheit. 23. Coke. — Coke is usually made by heating coal until all of the gas contained in it is driven off.... | |
 | William Gage Snow - Furnaces - 1915 - 284 pages
...may be defined with sufficient accuracy for the purposes of this work, as the amount of heat required to raise the temperature of 1 pound of water 1 degree Fahrenheit. The writer has assumed in the following calculations that 8000 heat units may be utilized per pound... | |
 | John Charles Olsen - Analytical chemistry - 1916 - 602 pages
...heat in common use is the British Thermal Unit, designated by the initial letters BTU This unit is the amount of heat necessary to raise the temperature of 1 pound of water from 39° to 40° Fahrenheit, or, for ordinary purposes, one degree F. at ordinary temperatures. The... | |
 | Amy Elizabeth Pope - 1916 - 554 pages
...in what is called the British Thermal Unit or BTU By a BTU is understood the amount of heat required to raise the temperature of 1 pound of water 1 degree Fahrenheit. A large calory is about the equivalent of4B. TU Specific heat. — By this is meant the amount of heat... | |
 | Archie Frederick Collins - Industrial arts - 1918 - 238 pages
...British thermal unit, or BTU, as it is called for short, and this is the amount of heat that is needed to raise the temperature of 1 pound of water 1 degree Fahrenheit. About Heating and Ventilating.— On first thought heating and ventilating may seem to have little... | |
 | Louis Kahlenberg - Chemistry - 1920 - 610 pages
...the British thermal unit is frequently used. A British thermal unit is the amount of heat required to raise the temperature of 1 pound of water 1 degree Fahrenheit; FIQ- m' it is designated by BTU OUTLINES OF CHEMISTRY by radiation must be ascertained, and a proper... | |
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British thermal unit is the amount of heat required to raise the temperature of 1 pound of water 1 degree Fahrenheit. 
