British thermal unit - Wikipedia
The British thermal unit (Btu) is a measure of heat, which is a form of energy. It was originally defined as the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. It is also part of the United States customary units. [1]
British thermal units (Btu) - U.S. Energy Information Administration …
British thermal unit (Btu) is a measure of the heat content of fuels or energy sources. One Btu is the quantity of heat required to raise the temperature of one pound of liquid water by 1° Fahrenheit (F) at the temperature that water has its greatest density (approximately 39° F).
British thermal unit (BTU) | Britannica
British thermal unit (BTU), a measure of the quantity of heat, defined since 1956 as approximately equal to 1,055 joules, or 252 gram calories. It was defined formerly as the amount of heat required to raise the temperature of one pound of water 1° F.
What is British Thermal Unit? - Energy Theory
2023年11月17日 · Since 1956, the British thermal unit (BTU), a unit used to quantify the amount of heat, has been defined as roughly equal to 1,055 joules, or 252 grams of calories. Previously, it was described as the amount of heat needed to increase a pound of water’s temperature by one degree Fahrenheit.
British thermal unit Definition & Meaning - Merriam-Webster
The meaning of BRITISH THERMAL UNIT is the quantity of heat required to raise the temperature of one pound of water one degree Fahrenheit at a specified temperature (such as 39°F). Did you know?
What is BTU? British Thermal Units Explained | Lex Air
2023年12月19日 · The British Thermal Unit (BTU) is a measure of heat energy, which indicates the amount of heat required to raise the temperature of one pound of water by one degree Fahrenheit. It is part of the British imperial and United States customary units and is still widely used today, particularly in the HVAC industry, to determine the efficiency of ...
British Thermal Unit - 5+ Examples, Formula, SI multiples, …
2024年7月16日 · What is a British Thermal Unit? The British Thermal Unit (BTU) is a unit of energy commonly used in the United States and UK to measure heating and cooling energy. It represents the amount of energy required to raise the temperature of one pound of water by one degree Fahrenheit. Q = M x Cp x ΔT.
British thermal unit - Simple English Wikipedia, the free …
British thermal unit, abbreviated as BTU, is a unit of energy measurement. The unit sees use in the United Kingdom, United States and Canada for particularly purposes, such as natural gas pricing. [source?] This can be made longer. You can help Wikipedia by .
British thermal unit - Energy Education
British thermal units, or BTUs, are a unit of energy. It is the amount of energy required to heat a pound of water by one degree Fahrenheit at one atm . The BTU is defined as 251.9958 calories , and due to the calorie having many different accepted values, so does the BTU.
What is a British Thermal Unit (BTU)? - Definition from Techopedia
2013年5月2日 · 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.