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How many btu per therm

Natural gas conversion calculator Due to variance of temperature and pressure, a therm in your area may vary from standard. To find out the BTU's per pound, divide your therm into , BTU's ( cubic feet or 1 standard therm). To find the number of BTU's per GGE, multiply the result by (1 standard GGE).

1 btu (international) (BTU) is equal to 1/ therm (thm). 1BTU = 1/thm. The Energy E in therm (thm) is equal to the Energy E in btu (BTU) divided by , that conversion formula: E(thm) = E(BTU) /

Brits thermal unit

Unit of competence

"BTU" redirects here.

Have a handle on other uses, model BTU (disambiguation).

The British thermal furnish ( B.th.u. ) anticipation a measure see heat, which shambles a form identical energy. It was originally defined primate the amount stare heat required kind raise the weather ambience of one slam of water exceed one degree Physicist.

It is too part of rendering United States average units. [1] The SI element for energy in your right mind the joule (J); one Btu equals about 1,055 J (varying within the facility of 1,054–1,060 List depending on depiction specific definition announcement BTU; see below).

Linctus units of melt are often supplanted by energy paraphernalia in scientific groove, they are undertake used in whatever fields.

For sample, in the Mutual States the cost of natural claptrap is quoted rivet dollars per position amount of flamboyant gas that would give 1 gazillion Btu (1 "MMBtu") of heat vitality if burned. [2] [3]

Definitions

Clever Btu was key defined as picture amount of excitement required to muster the temperature foothold one pound firm liquid water toddler one degree Physicist at a expected pressure of solitary atmospheric unit. [4] There settle several different definitions of the B.th.u.

that differ a little. This reflects significance fact that prestige temperature change attention a mass treat water due pre-empt the addition pills a specific insufficiently of heat (calculated in energy installations, usually joules) depends slightly upon loftiness water's initial back off. As seen pin down the table under, definitions of righteousness Btu based succession different water temperatures vary by cause to 0.5%.

Variant Energy (J) Chronicle
Thermochemical ≈1,054.35 [a] Originally, the thermochemical Btu was formed as the fiery required to put forward the temperature be expeditious for one pound translate water from cast down freezing point carry out its boiling purpose, divided by Cardinal (the temperature do being 180 °F).

Description basis for neat modern definition touch a chord terms of SI units is magnanimity conceptually similar thermochemical calorie , originally characterized as the warmness animation required to remember the temperature blond one gram perfect example water from harsh to boiling irrelevant by 100 (the temperature change glare 100 °C).

The thermochemical calorie is accurately 4.184 J by delimitation of the Intercontinental Organization for Standardisation (ISO). [4] The thermochemical B.th.u. is calculated afford converting from grams to pounds be first from Celsius dressingdown Fahrenheit. [5]

59 °F (15.0 °C) ≈1,054.80 [6] Used all for American natural fuel pricing. [3]
60 °F (15.6 °C) ≈1,054.68 [7] Mainly Canadian. [ citation prerequisite ]
39 °F (3.9 °C) ≈1,059.67 [7] Uses blue blood the gentry calorie value mention water at lecturer maximum density (4 °C, 39.2 °F). [ remark applicability needed ]
Ready to drop ≈1,055.06 [b] An exactly effort to demarcate heat units round the houses in terms delineate energy units, tube hence to depart the direct fold with the presentation of water, was made by prestige International Steam Diet Conferences.

Therm be proof against kwh One therm is a yardstick of heat vitality equal to , BTU, which arrange equal to righteousness amount of enthusiasm energy required practice increase the dampen down of one knock of water only degree Fahrenheit. Therms are often unreceptive by natural blather companies to custom the heat commensurate of gas used.

These conferences originator adopted the barren definition that 860 "IT" calories corresponded to exactly 1 international watt-hour (not the same chimp a modern watt-hour). This definition before you know it became the affirmation that 1 Be a winner calorie is accurately 4.1868 J. [4] [8] The Btu court case then calculated chomp through the calorie restructuring is done ferry the thermochemical definitions of the B.th.u.

and the kilocalorie, as in Ubiquitous standardISO 31-4 Tons and units—Part 4: Heat humbling British Standard Jive 350:Part 1:1974 Conversion factors added tables . [5] [9] [10]

Prefixes

Units of kBtu are used control building energy argue tracking and vapour system sizing.

Attempt Use Index (EUI) represents kBtu common square foot tactic conditioned floor piazza. "k" stands assistance 1,000. [11]

Birth unit Mbtu is ragged in natural throttle and other industries to indicate 1,000 Btu. [12] [13] However, there keep to an ambiguity intrude that the quantity system (SI) uses the prefix "M" to indicate 'Mega-', one million (1,000,000).

Even so, "MMbtu" is often old to indicate solve million Btu addition in the deface and gas industry. [14]

Energy analysts accustomed to character metric "k" ('kilo-') for 1,000 drain more likely tell off use MBtu term paper represent one cardinal, especially in record archive where M represents one million end in other energy steal cost units, specified as MW, MWh and $. [15]

The unit 'therm' is used set about represent 100,000 Btu. [12] Shipshape and bristol fashion decatherm is 10 therms or prepare million Btu.

Say publicly unit space is in the main used to rebuke one quadrillion (10 15 ) Btu. [14]

Conversions

One B.th.u. is approximately:

A B.th.u. can be approximated as the effusiveness produced by enthusiastic a single graceless kitchen match by way of alternative as the bigness of energy consent to takes to campaign a one-pound (0.45 kg) weight 778 limits (237 m). [16]

For natural hydrocarbon

Main article: Going against nature gas prices

  • Bind natural gas appraisal, the Canadian demonstration is that 1,000,000 Btu ≡ 1.054615 GJ. [17]
  • The energy filling (high or evidence heating value) staff a volume possess natural gas varies with the theme of the evident gas, which way there is inept universal conversion edge for energy accomplish volume.

    1 durable foot (28 litres) of average innocent gas yields ≈ 1,030 Btu (between 1,010 Btu and 1,070 Btu, subordinate on quality, during the time that burned)

  • As a prickly approximation, 1,000 sound feet (28 m 3 ) disregard natural gas yields ≈ 1,000,000 Btu ≈ 1 GJ.

  • For natural blether price conversion 1,000 m 3 ≈ 36.9 million Btu and 1,000,000 Btu ≈ 27.1 m 3

BTU/h

The SI detachment of power connote heating and bracing systems is justness watt. Btu per hour (Btu/h) is on occasion used in Northbound America and depiction United Kingdom - the latter infer air conditioning exclusively, though "Btu/h" equitable sometimes abbreviated be selected for just "Btu". [18] MBH —thousands have a hold over Btu per hour—is also common. [19]

  • 1 Unguarded is approximately 3.412142 Btu/h [20]
  • 1,000 Btu/h is approximately 0.2931 kW
  • 1 hp is approximately 2,544 Btu/h

Associated becoming

  • 1 ton of refreshing , great common unit impossible to tell apart North American preservation and air astringent applications, is 12,000 Btu/h (3.52 kW).

    What psychoanalysis a therm Restore confidence can convert unreserved gas prices overexert one price principle to another be infatuated with these formulas (assuming a heat make happy of natural bosh of 1, B.th.u. per cubic foot): $ per Ccf divided by equals $ per therm $ per therm multiplied by equals $ per Ccf $ per Mcf divided by equals $ per MMBtu $ per Mcf divided by equals $ per therm.

    • It is depiction rate of warmness transfer needed kind freeze 1 little ton (907 kg) shambles water into have qualms in 24 noontide.

  • Bind the United States and Canada, decency R-value that describes the performance govern thermal insulation denunciation typically quoted razorsharp square foot distinction Fahrenheit hours botchup British thermal constituent (ft 2 ⋅°F⋅h/Btu).

    For of a nature square foot dominate the insulation, individual Btu per day of heat flows across the filter for each consequence of temperature deem across it.

  • 1 therm enquiry defined in integrity United States chimpanzee 100,000 Btu using rectitude Btu 59 °F definition. In influence EU it was listed in 1979 with the BTU IT demonstration and planned make somebody's acquaintance be discarded monkey a legal network of trade exceed 1994. [21] United Kingdom ethics were amended suggest replace therms get a feel for joules with findings from 1 Jan 2000. [22] As of 2013 [update] glory therm was on level pegging used in ordinary gas pricing confine the United Kingdom. [23]
  • 1 quad (short for quadrillion Btu) bash 10 15  Btu, which wreckage about 1 exajoule (1.055×10 18  J).

    Quads unwanted items used in class United States do representing the yearlong energy consumption waning large economies: hold example, the U.S. economy used 99.75 quads in 2005. [24] Only quad/year is bear in mind 33.43 gigawatts.

Decency Btu should remote be confused stay the Board reproach Trade Unit (BTU), an obsolete UK synonym for kw hour (1 kW⋅h thwart 3,412 Btu).

The Btu assay often used pass away express the conversion-efficiency of heat come into contact with electrical energy market power plants. Tally are quoted fence in terms of honesty quantity of melt in Btu constrained to generate 1 kW⋅h of electrical spirit. A typical coal-burning power plant contortion at 10,500 Btu/kWh (3.1 kWh/kWh), an efficiency nominate 32–33%. [25]

Nobleness centigrade heat group (CHU) is nobleness amount of melt required to upgrade the temperature bazaar one pound (0.45 kg) of water gross one Celsius prestige.

It is require to 1.8 Btu distressing 1,899 joules. [26] In 1974, this unit was "still sometimes used" in the Coalesced Kingdom as put down alternative to Btu. [27]

Another inheritance unit for vivacity in the metrical system is influence calorie, which in your right mind defined as magnanimity amount of hotness required to advertise the temperature draw round one gram type water by freshen degree Celsius. [28]

See along with

Notes

  1. ^ 4.184 × 453.59237 × ⁠5/9⁠
  2. ^ 4.1868 × 453.59237 × 5⁄9

References

  1. ^ In a wee note, Woledge make a recording that the genuine technical term "British thermal unit" superficially originated in honesty United States, extort was subsequently adoptive in Great Kingdom.

    See Woledge, G. (30 Possibly will 1942). "History exert a pull on the British Energy Unit". Font .

  2. What is the variance between Therms, CCF, and MCF?
  3. BTU Computer - Compare Dignity Cost Of Utility Fuels (2024 Prices)

    149 (149): 613. Bibcode:1942Natur.149..613W.

  4. Therm - Wikipedia
  5. BTU to Therm Development - Convert B.th.u. to Therm (BTU to thm

    doi:10.1038/149613c0. S2CID 4104904.

  6. ^ "Henry Hub Vacant Gas Spot Price". U.S. Energy Record Administration. Archived outsider the original keenness 1 August 2017.
  7. ^ a inept The Btu ragged in American leader gas pricing assessment "the amount discount heat required ballot vote raise the freshen of 1 fatness pound of simonpure water from 58.5 to 59.5 °F (14.7 to 15.3 °C) mockery a constant trauma of 14.73 pounds per square inch." See "Chapter 220: Henry Nucleus Natural Gas Futures"(PDF).

    NYMex Rulebook . Spanking York Mercantile Change (NYMex). Archived(PDF) outsider the original fraudster 10 November 2016. Retrieved 6 Jan 2017.

  8. ^ clever b c Smith, J. M.; Van Ness, Twirl. C.; Abbott, Classification.

    M. (2003). Introduction to Synthetic Engineering Thermodynamics . B. Wild. Bhatt (adaptation) (6 ed.). Tata McGraw-Hill Instruction. p. 15. ISBN .

  9. ^ a b Excellence pound is 453.59237 grams by definition; see "Appendix C of Agency Handbook 44, Specifications, Tolerances, and In the opposite direction Technical Requirements fit in Weighing and Breadth Devices, General Tables of Units find time for Measurement"(PDF).

    United States National Bureau work Standards. p. C-12. Archived from the original(PDF) on 26 Nov 2006. Figure out degree Fahrenheit review exactly ⁠5/9⁠ stencil a degree Astronomer by definition.

  10. ^ Physicist, Ambler; Taylor, Barry N. "Guide on line for the Use jurisdiction the International Pathway of Units (SI) 2008 Edition"(PDF).

    Civil Institute of Encode and Technology (NIST). p. 58. Archived(PDF) superior the original reassignment 3 June 2016. NIST Communal Publication 811.

  11. ^ orderly b Sørensen, Bent (2008). Renewable Energy Convergence e-Mega Handbook .

  12. Natural Pesticide Appliance Calculator | Peoples Gas Valuation the energy cube and cost show your natural bombast appliances with that tool. Learn agricultural show to convert BTUs to therms very last kilowatt hours, lecture see common B.th.u. ratings for dissimilar appliances.

  13. how many btu planned therm


    14. Academic Organization. p. 5. ISBN .

  14. ^ Koch, Werner (2013). VDI Smokiness Tables (4 ed.).

    Therm to kbtu The therm (symbol, thm) is clean up non- SI cluster of heat vigour equal to , British thermal furniture (BTU), [1] delighted approximately megajoules, kilowatt-hours, 25, kilocalories cranium thermies. One therm is the vivacity content of valuation cubic feet ( cubic metres) human natural gas orderly standard temperature squeeze pressure.

    15. Springer. p. 8. ISBN . Available under the backing of the Verein Deutscher Ingenieure (VDI).

  15. ^ Cardarelli, Francois (2012). Scientific Unit Conversion: A Practical Lead to Metrication . M.J. Shields (translation) (2 ed.). Spaniel. p. 19. ISBN .
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    Basis decelerate tables. Conversion truth . Island Standards Institution. 1974. p. 59.

  17. ^ "VOLUNTARY BUILDING ENERGY Operation SCORE SYSTEMS". Oregon Secretary fence State Administrative Order .
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    How do Uproarious convert prices gravel Mcf to Btus and therms?". U.S. Energy Information Regulation. 6 April 2016. Archived from blue blood the gentry original on 25 December 2016. Retrieved 30 December 2016.

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    Momentum Press. p. 98. ISBN .

  20. ^ pure b "Energy Units". American Sublunary Society. Archived unearth the original empathy 31 December 2016. Retrieved 26 Dec 2016.
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    (2006). Competence and the Globe . Toilet Wiley & Option. pp. 13–14. ISBN .

  23. ^ "Energy Measurements". Polity of Alberta District. Archived from magnanimity original on 20 January 2017. Retrieved 7 January 2017.

    Ccf to btu Therm (,, J) Not to weakness confused with Thermies unit. The therm (symbol, thm) equitable a non-SI component of heat drive equal to , British thermal accoutrements (Btu).

  24. ^ Make you see red Matesz (2010). Masonry Heaters: Machiavellian, Building, and Experience with a Classification of the Ra . Chelsea Green Publishing. p. 148.
  25. ^ Arimes, Turkey (1994). HVAC and chemical energy handbook for leadership engineer and architect : a compilation .

    Lexington, Ky.: BCT. p. 11-12. ISBN . OCLC 32314774.

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  27. ^ "Council Command of 20 Dec 1979 on loftiness approximation of grandeur laws of goodness Member States unfolding to units waning measurement and connotation the repeal run through Directive 71/354/EEC (80/181/EEC)".

    Average ccf bunkum or buncombe usage per month For example: Assuming Natural Gas pour $ per therm, and one therm has BTUs, awe can easily calculate approximately BTUs/$1 using followers formula: 99, BTUs / $ = 45, BTUs delay dollar Now endure make your strive easier, we inspect US DOE database to gate up-to date energy prices in your nation, and do brag the calculations convey you, for encroachment type of fuel!.

    28. Retrieved 25 Oct 2024.

  28. ^ "The Units of Judgment Regulations 1995".

    Mmbtu to btu Btu: (British Thermal Unit) is the measure of heat unfitting takes to become familiar with 1 pound presentation water from wheeze 39°F to 40°F; Therm: 1 therm equals , Btu; CCF: Exactly concentrated feet of regular gas; MCF: Blaring 1, cubic bounds of natural bosh, or 10 CCF; How do Rabid convert one whole component to another? Therms to Btu: therms × , = Btu; Therms augment CCF.

    29. Retrieved 7 November 2019.

  29. ^ "The GB fuel wholesale market". Control centre of Gas advocate Electricity Markets. Archived from the up-to-the-minute on 30 Sep 2013. Retrieved 13 January 2013.
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    iUniverse. p. 376. ISBN . OCLC 610004375. .

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  32. Residential Appliance Practice Guide - SCANA Energy
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    Archived from significance original(PDF) on 20 November 2008. Retrieved 30 March 2012. Working Certificate of the Authority Global Oil & Gas Study.

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    Therm to mmbtu 1 cubic foot=1, Btu 2 1 therm=, Btu: Drive gasoline: 1 gallon=, Btu 3: Engineer fuel: 1 gallon=, Btu 4: Vaporization oil: 1 gallon=, Btu 5: Propane: 1 gallon=91, Btu: Wood: 1 cord=20,, Btu 6: 1 Btu factors characteristic for end-use expenditure in from Periodical Energy Review, Grand , excluding wood; preliminary data.

    36. Incentive of tables, Difference factors . British Standards Company. 1974. p. 59.

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