British Thermal Unit (BTU)
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Techopedia Explains British Thermal Unit (BTU)
A British thermal unit (BTU) is the amount of energy or heat needed to increase the temperature of one pound of water by one degree Fahrenheit (F) at its maximum density. The maximum density transpires at a temperature of 39.1 degrees °F. One BTU is about the equivalent of the following: 1055 joules 1.054 to 1.060 kilojoules (kJ) 107.5 kilogram-meters 0.293071 watt hours (W.h) 778 to 782 foot-pounds force (ft·lbf) 252 to 253 calories “little calories” 0.25 kilocalories (kcal) ‘large calories” With many heating and cooling systems thousands of BTU’s can be produced. In order to simplify measurements when in the thousands or millions, other BTU standards are used: MBTU: Equal to one thousand (1,000) BTU MMBTU: Equal to one million (1,000,000) BTU Therm: Equal to 100,000 or 10 BTU (U.S. uses BTU59°F and the European Union uses BTUIT) Quadrillion (quad): Equal to 1,000,000,000,000,000 or 1015 BTU The BTU is frequently used for measuring energy producing and energy transferring systems such as air conditioners, ovens, refrigerators and heaters. Often the energy output of computer devices is configured to regulate temperatures of large buildings. The heat output of computer equipment is generally measured in BTU/h with 3.7 BTU/h equal to 1 watt of energy.Advertisement
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