British thermal unit definition of British thermal unit in the Free Online Encyclopedia.

British thermal unit, abbr. Btu, unit for measuring heat quantity in the customary system of English units of measurement English 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.
..... Click the link for more information. , 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 [′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 (Btu_60/61).

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 (Btu_mean).

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 (Btu_IT).

British thermal unit

The amount of heat required to raise the temperature of 1 pound of water by 1 degree Fahrenheit. Abbr. Btu.

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No references found	50 dollars per million British thermal units (mmbtu) for 20 years, and 550,000 tons a year to Posco at 3. Indonesia won't delay LNG supplies to China, SKorea: minister by AFP / AFP Asian Edition 60 per million British thermal unit (mmBtu) for an LNG cargo from Equatorial Guinea, Reuters calculations showed, the second cargo it bought this year from Equatorial Guinea and bringing the total number of spot cargoes this year to 10. China imports less spot LNG by Oil & Gas News The MRF uses an energy recovery ventilation system that recycles British thermal units to heat the building, recycling two-thirds to three-quarters of its energy. MRF recognized for Green approach by Construction & Demolition Recycling	British imperial pound British Imperial System of weights and measures British India British Indian Ocean Territory British Interplanetary Society British Invasion British Isles British Library British Library Method British Museum British Museum Library British North America British North America Act British North Borneo British Open British Socialist Party BSP British Somaliland British South Africa Company British Standard British Standard specification British Standards Institute British Standards Institution British Steel Corporation British Telecom British Telecom Research Laboratories British thermal unit British Togoland British Trade Union Congress BTUC British West Africa British West Indies British, The Britomart Britomartis Briton Britske, Ergard Britske, Ergard Viktorovich Brittan, Sir Leon Brittany Brittany spaniel Britten Britten of Aldeburgh, Benjamin Britten, Baron Britten, Benjamin Britten, Benjamin, Baron Britten of Aldeburgh brittle brittle fracture brittle mica brittle silver ore brittle star brittle temperature brittleheart Brittleness	British Telecom British Telecom Christian Network British Telecom Global Services British Telecom Lempel Ziv British Telecom Network Requirement British Telecom Research Laboratories British Telecom Research Laboratories British Telecom Young Scientist & Technology Exhibition British Telecommunications British Telecommunications Laboratories British Telecommunications North America British Telecommunications Pension Scheme British Television Advertising Awards British Television Distributors Association British Tennis Coaches' Association, Ltd. British Tenpin Bowling Association British Tenpin Bowling Coaching Association British Territorial Army British Tertiary Igneous Province British Textile Machinery Association British Textile Rental Association British Textile Technology Group British Thai Boxing Council British Theatre Dance Association British Thematic Association British thermal unit British thermal unit (Btu) British thermal unit (Btu) British thermal unit (Btu) British thermal unit (Btu) British thermal unit (Btu) British Thermal Unit per Cubic Feet British Thermal Unit per Hour British Thermal Units British Thermal Units British Thermal Units British Thermal Units British Thermal Units British Thermal Units per Hour British Thompson-Houston British Thoracic and Tuberculosis Association British Thoracic Oncology Group British Thoracic Society British Thought Field Therapy Association British threepence coin British Thyroid Association British Tinnitus Association British Toggenburg Society British Togoland British Togoland British Toilet Association British Tomato Growers' Association British Tommies British Tommy British Touring Car Championship British Touring Car Club

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50 dollars per million British thermal units (mmbtu) for 20 years, and 550,000 tons a year to Posco at 3.

Indonesia won't delay LNG supplies to China, SKorea: minister by AFP / AFP Asian Edition

60 per million British thermal unit (mmBtu) for an LNG cargo from Equatorial Guinea, Reuters calculations showed, the second cargo it bought this year from Equatorial Guinea and bringing the total number of spot cargoes this year to 10.

China imports less spot LNG by Oil & Gas News

The MRF uses an energy recovery ventilation system that recycles British thermal units to heat the building, recycling two-thirds to three-quarters of its energy.

MRF recognized for Green approach by Construction & Demolition Recycling

British imperial pound

British Imperial System of weights and measures

British India

British Indian Ocean Territory

British Interplanetary Society

British Invasion

British Isles

British Library

British Library Method

British Museum

British Museum Library

British North America

British North America Act

British North Borneo

British Open

British Socialist Party BSP

British Somaliland

British South Africa Company

British Standard

British Standard specification

British Standards Institute

British Standards Institution

British Steel Corporation

British Telecom

British Telecom Research Laboratories

British thermal unit

British Togoland

British Trade Union Congress BTUC

Britske, Ergard Viktorovich

Britten of Aldeburgh, Benjamin Britten, Baron

Britten, Benjamin

Britten, Benjamin, Baron Britten of Aldeburgh

British Telecom
British Telecom Christian Network
British Telecom Global Services
British Telecom Lempel Ziv
British Telecom Network Requirement
British Telecom Research Laboratories
British Telecom Research Laboratories
British Telecom Young Scientist & Technology Exhibition
British Telecommunications
British Telecommunications Laboratories
British Telecommunications North America
British Telecommunications Pension Scheme
British Television Advertising Awards
British Television Distributors Association
British Tennis Coaches' Association, Ltd.
British Tenpin Bowling Association
British Tenpin Bowling Coaching Association
British Territorial Army
British Tertiary Igneous Province
British Textile Machinery Association
British Textile Rental Association
British Textile Technology Group
British Thai Boxing Council
British Theatre Dance Association
British Thematic Association

British thermal unit