British thermal unit


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British thermal unit,

abbr. Btu, unit for measuring heat quantity in the customary system of English units of measurementEnglish units of measurement,
principal system of weights and measures used in a few nations, the only major industrial one being the United States. It actually consists of two related systems—the U.S.
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, equal to the amount of heat required to raise the temperature of one pound of water at its maximum density [which occurs at a temperature of 39.1 degrees Fahrenheit (°F;) ] by 1°F;. The Btu may also be defined for the temperature difference between 59°F; and 60°F;. One Btu is approximately equivalent to the following: 251.9 calories; 778.26 foot-pounds; 1055 joules; 107.5 kilogram-meters; 0.0002928 kilowatt-hours. A pound (0.454 kilogram) of good coal when burned should yield 14,000 to 15,000 Btu; a pound of gasoline or other fuel oil, approximately 19,000 Btu.

British thermal unit

(BTU)
The amount of heat required to raise one pound of water 1 degree Fahrenheit in temperature—about the heat content of one wooden kitchen match.

British thermal unit

[′brid·ish ′thər·məl ‚yü·nət]
(thermodynamics)
Abbreviated Btu.
A unit of heat energy equal to the heat needed to raise the temperature of 1 pound of air-free water from 60° to 61°F at a constant pressure of 1 standard atmosphere; it is found experimentally to be equal to 1054.5 joules. Also known as sixty degrees Fahrenheit British thermal unit (Btu60/61).
A unit of heat energy that is equal to 1/180 of the heat needed to raise 1 pound of air-free water from 32°F (0°C) to 212°F (100°C) at a constant pressure of 1 standard atmosphere; it is found experimentally to be equal to 1055.79 joules. Also known as mean British thermal unit (Btumean).
A unit of heat energy whose magnitude is such that 1 British thermal unit per pound equals 2326 joules per kilogram; it is equal to exactly 1055.05585262 joules. Also known as international table British thermal unit (BtuIT).

British thermal unit

The amount of heat required to raise the temperature of 1 pound of water by 1 degree Fahrenheit. Abbr. Btu.
References in periodicals archive ?
from 8,000 to 25,000 British Thermal Units (BTU/h) and can cool rooms up to 1500 square feet.
The report also finds that a modest increase in the gas price of just US$0.5 per million British thermal units (mmBtu) would add more than $6 billion per year to GCC government coffers.
Average fee rate expected to range from 90 to 95 cents per Million British thermal units, compared with 90 cents per MMBtu in 2018.
A notification issued by OGRA here stated that the price of RLNG for consumers of SNGPL will be $11.038 per million British thermal units (mmbtu) and for consumers of SSGC at $11.3726 per mmbtu, for January 2019.
Regarding cooking gas, the panel said it maintained its price at JD7 a cylinder despite an increase of its international price to JD8.8, as a way to "ease off the burden on lower income households and in accordance with the local economic situation." The monthly pricing mechanism included the selling price of natural gas to industries which amounted to JD7.45 per million British thermal Units (Btu).
These price changes were highly correlated with the rise and fall of natural gas prices, which fluctuated from $3.00 to $13.00 per MBTUs" (one million British thermal units, or BTUs).*
It is likely to decrease Maxwell's energy use by over 41,000 MMBtu (one million British Thermal Units) or 12 GWh (gigawatt hours) per year, enough to power nearly 1,100 American homes, and will help the base better meet its energy intensity reduction goals.
The company added that the Verona 1-23-14XH flowed at an initial 24-hour test rate of 3,339 barrels of oil equivalent per day, comprised of 2,345 barrels of oil, or 70% of production, and 6.0m cubic feet of 1,370-Btu natural gas (British thermal units).
The regulator said the gas tariff for public and private sector power plants has been raised by Rs13 per million British thermal units (mmbtu), which will eventually be passed on to energy consumers in order to recover a higher cost of production.
Traders said that the outage of the huge facility, located on Australia's northwestern coast, could support Asian LNG prices which have slumped by almost 80 per cent from their peak in 2014 to $4.30 per million British thermal units. Prices have plummeted as supply has soared but demand has stalled.
The project encompasses building wide-scale installations for importing 3,000 British thermal units per day of liquefied natural gas to meet the mounting local consumption demand, he said.
(Alba) has been notified by the Bahrain Petroleum Company (BAPCO) that the National Oil and Gas Authority of Bahrain (NOGA) has issued a directive to increase natural gas prices from US$ 2.25 per million British thermal units (MMBTU) to US$2.50 per MMBTU effective 1 April 2015.

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