British thermal unit
|Unit name||British thermal unit|
|Physical quantity (s)||(Thermal) energy|
|system||Anglo-American system of measurement|
|In SI units|
|Derived from||Fahrenheit degrees , pounds sterling|
The British thermal unit is a unit of energy . Your unit symbol is BTU or Btu , its symbols W . The Btu does not belong to the International System of Units (SI) and is defined as the heat energy required to heat a pound of water by 1 degree Fahrenheit . Since this energy differs depending on the temperature of the water due to the temperature-dependent heat capacity , there are several definitions of the Btu.
|... Btu||... joules||calorie||... watt hour|
|1 Btu IT||1055,05585262 J.||≈ 252 cal|
|1 MBtu = 1,000 Btu||≈ 293,071.070.159.3 Wh|
|1 therm = 100,000 Btu|
|1 MMBtu IT = 1,000,000 Btu IT||1055.05585262 MJ||≈ 293.071.070.159.3 kWh
= 0.293.071.070.159.3 MWh
- 1000 BTU / h ≈ 293 W.
The natural gas -Consumption is sometimes in MMBtu (million British thermal units; MM comes from a thousand thousand) indicated. 1 MMBtu corresponds to 26.4 cubic meters of gas, based on an energy content of 40 MJ / m³ (11 kWh / m³).
- sizes.com: British thermal unit