A british thermal unit is measured as the quantity of heat required to raise the temperature of 1 pound of water by 1f. Online btu calculator that allows you to estimate the total amount of heat produced in a room. Britishthermalunit group the units and constants handbook. British thermal unit definition of british thermal. One btu is equivalent to 1,054 joules or 252 calories. The btu is a nonmetric unit of energy utilized mostly in the united states and sometimes in the united kingdom. The platts industry glossary provides definitions for common industry terms in the oil, power. The quantity of heat required to raise the temperature of one pound of water from 60 to 61f at a constant pressure of one. The quantity of heat required to raise the temperature of 1 pound of liquid water by 1 degree fahrenheit at the temperature at which water has its greatest density approximately 39 degrees fahrenheit. Convert british thermal units to million tonnes of oil. British thermal unit definition and meaning collins english. The most popular abbreviation for british thermal unit is. Convert from btu it into other major units of energy.
Instantly converts british thermal units to cubic feet of natural gas and many more energy, work, and heat conversions online. Synonyms for british thermal units in free thesaurus. British thermal unit btu a unit of measure of heat,used in rating the capacity of air conditioning and heating equipment. A gas cracker device splits the molecule at a rate much greater than that normally found in nature. The quantity of heat required to raise one pound of water. The british thermal unit btu or btu is a nonsi, traditional unit of heat. British thermal units synonyms, british thermal units pronunciation, british thermal units translation, english dictionary definition of british thermal units. The heating by hot water walter jones book first edition of 1894 does not mention btus, but by the 3rd edition published in 1904 it refers to the standard unit of heat as the british thermal unit.
The acronym stands for british thermal unit, which is the unit used to measure thermal heat energy. The quantity of heat required to raise one pound of water about. To gain an impression of the size of a btu, the combustion of a barrel of oil yields about 5. British thermal unit definition, the amount of heat required to raise the temperature of 1 pound 0. Definition of british thermal unit in the dictionary. British thermal unit definition of british thermal unit by. Convert british thermal units to therms energy converter. A british thermal unit btu is a standard measure of thermal energy. It is the quantity of heat required to raise the temperature of one pound of liquid water by 1 degree fahrenheit at the temperature that water has its greatest density approximately 39 degrees fahrenheit. British thermal unit unit of measurement britannica. A british thermal unit is a unit of energy in the imperial system. British thermal unit definition of british thermal unit. British thermal unit meaning, term, and glossary definition what is british thermal unit. To switch the unit simply find the one you want on the page and click it.
British thermal unit is a standard energy unit which ranges from 1. The position so far as we have been able to ascertain it is set out below. This term has the same meaning as aggregation pool. Its counterpart in the metric system is the calorie, which is defined as the amount of heat. It represents the amount of thermal energy necessary to raise the temperature of one pound of pure liquid water by one degree fahrenheit at the temperature at which water has its greatest density 39 degrees fahrenheit.
The definition was changed because it was dependent on the initial temperature of the water. British thermal unit btu indicates how much heat is contained in a substance. The webs largest and most authoritative acronyms and abbreviations resource. It was defined formerly as the amount of heat required to raise the temperature of one pound of water 1 f. British thermal unit international steam table definition notes. Abbreviation for british thermal unit, the amount of energy needed to raise the temperature of one pound of water by one degree fahrenheit. One btu is the amount of energy necessary to raise the temperature of 1 pound of water by 1 degree fahrenheit. Tell a friend about us, add a link to this page, or visit the webmasters page for free fun content. Eighth grade lesson measuring the british thermal unit. The british thermal unit btu or btu is a nonmetric unit of energy, used in the united states and, to a lesser extent, the uk where it isgenerally only used for heating systems.
British thermal unit synonyms, british thermal unit pronunciation, british thermal unit translation, english dictionary definition of british thermal unit. Find out what is the most common shorthand of million british thermal unit on. British thermal unit plural british thermal units the quantity of heat required to raise the temperature of one pound of water one degree fahrenheit at a particular temperature there are several different precise definitions and a pressure of one atmosphere. A single btu is the amount of energy required to increase the temperature of one pound avoirdupoisof water by one degree fahrenheit f. It is also part of the united states customary units.
Mean british thermal unit article about mean british. British thermal unit article about british thermal unit. The british thermal unit btu or btu is a nonmetric unit of energy, used in the united states and, to a lesser extent, the uk where it. What is the abbreviation for million british thermal unit. A gas cracker is any device that splits the molecules in a gas or liquid, usually by electrolysis, into atoms. The list of acronyms and abbreviations related to btuh british thermal unit per hour.
British thermal unit the energy needed to raise the temperature of one pound of water one degree fahrenheit. Sources said that ecc is likely to approve the ministry of petroleum summary regarding british thermal unit btu policy 2011 under which likely to allow tenyear taxexemption to low british thermal unit so that supply for power generation can be increased. Ihr einheitenzeichen ist btu oder btu, ihr formelzeichen w. Understanding the us petrochemical feedstock advantage. When used in relation to air conditioning systems or heaters, the measurement is expressed in terms. A gasoline blending component made in a cat cracker. What is british thermal unit definition and meaning. Ideally, 1 btu is equal to 1055 joules, which means that 1055 joules are needed in order to cool off or. Ideally, 1 btu is equal to 1055 joules, which means that 1055 joules are needed in order to cool off or heat 1 pound of water by 1fahrenheit. British thermal units synonyms, british thermal units. British thermal unit financial definition of british. In nature, molecules are split often, such as in food digestion and microbial digestion activity. British thermal unit article about british thermal unit by.
Crackers make a loud noise when they are pulled apart and usually contain a small toy and a paper hat. Cracking of petroleum hydrocarbons was originally done by thermal cracking, which has been almost. You are currently converting energy units from british thermal unit to million tonnes of oil equivalent 1 btu 2. Abbreviation for british thermal unit, the amount of energy needed to raise the temperature of one. Looking for the abbreviation of million british thermal unit. This is a conversion chart for british thermal unit british and american. A certain amount of interest appears to have arisen of late as to the history and definition of the british thermal unit. Synonyms for british thermal unit in free thesaurus. Convert from btu it per hour into other major units of power. British thermal unit definition and meaning collins. New cracker economics when the price of ethylenepolyethylene is high.
A cracker is a hollow cardboard tube covered with coloured paper. Amount of heat required to raise the temperature of one pound of water at or near 39. You are currently converting energy units from british thermal unit to therm 1 btu 0. What is british thermal unit definition and meaning math. Ch50 unit the amount of complement that will lyse 50 per cent of a standard preparation of sheep red blood cells coated with antisheep erythrocyte antibody.
British thermal unit synonyms, british thermal unit antonyms. Unit of heat energy equal to the amount of heat required to raise the temperature of one pound of water by one degree fahrenheit at sea level. British thermal units definition of british thermal units. Easily convert british thermal units to therms, convert btu to thm. British thermal unit definition is the quantity of heat required to raise the temperature of one pound of water one degree fahrenheit at a specified temperature. British thermal unit financial definition of british thermal unit. Information and translations of british thermal unit in the most comprehensive dictionary definitions resource on the web. Is a higher btu equivalent to a higher power cooling unit or is it reversed so a lower btu is equivalent to a higher power cooling unit. Convert british thermal unit to therm europe conversion.
I ask students to write both the definition of a calorie and the definition of a btu in their engineering notebooks. Convert calorie to british thermal unit conversion of. Fluid catalytic cracking fcc is one of the most important conversion processes used in petroleum refineries. It is widely used to convert the highboiling, highmolecular weight hydrocarbon fractions of petroleum crude oils into more valuable gasoline, olefinic gases, and other products.
British thermal unit btu a unit of heat formerly widely used, being the amount necessary to raise the temperature of 1 pound of water from 39 to 40f. Cracker definition and meaning collins english dictionary. Wikipedia definition the british thermal unit btu or btu is a nonsi, traditional unit of heat. Commonly referred to as btu, this unit is used to measure energy. 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. Britishthermalunit international steam table definition notes. I see there already is disambig on the british thermal unit page. British thermal units definition of british thermal. It is used in the united kingdom, the united states, and a few other countries to measure the energy used by appliances like heaters and air conditioners. The british thermal unit symbol btu or sometimes btu is a traditional unit of energy equal to about 1,055 joules.
A cracker is a thin, crisp biscuit which is often eaten with cheese. It is approximately the amount of energy needed to heat 1 pound 0. The quantity of heat required to raise the temperature of one pound of water from 60 to. British thermal unit synonyms, british thermal unit. A british thermal unit btu is a standard unit of energy that is used in the united states and sometimes in the u. An airconditioning system that is rated at 24,000 btuh has the capacity to remove 24,000 btu of heat energy from the structure every hour. Originally defined as the quantity of heat needed to raise the temperature of 1. In the metric system, the equivalent of the british thermal unit is the joule. The oxford dictionary of abbreviations fran alexander, peter blair, john. 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.
A unit of energy, 1876 present, usually referred to as a btu pronounced bee tee u. Try searching british thermal unit across the entire website. British thermal unit want to thank tfd for its existence. Fuel value the price where 1 btu british thermal unit, a measure of heating value of a.
British thermal unit definition of british thermal unit at. Enter the value you want to convert british thermal unit. Btu british thermal unit calculator estimate amount of. So to summarize, the term british thermal unit starts to appear in books from around 1897. British thermal units to cubic feet of natural gas kyle. Convert from btu it into other major units of energy convert from btu it per hour into other major units of power a unit of energy, 1876 present, usually referred to as a btu pronounced bee tee u. A british thermal unit btu is a measure of the heat content of fuels or energy sources. Cracker definition in the cambridge english dictionary.
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