B.Th.U.
ریشه و کاربرد
ریشه
The abbreviation 'B.th.u.' is derived from the words 'British thermal unit per hour'.
مثال
- The air conditioner has a cooling capacity of 10,000 B.th.u. per hour.
- The rate of heat transfer is measured in B.th.u. per hour.
- The heater produces 50,000 B.th.u. per hour.
تعریف انگلیسی
noun
- a unit of heat equal to the amount of heat required to raise one pound of water one degree Fahrenheit at one atmosphere pressure; equivalent to 251.997 calories