Convert Btu (th)/second to femtowatt
Please provide values below to convert Btu (th)/second [Btu(th)/s] to femtowatt [fW], or Convert femtowatt to Btu (th)/second.
How to Convert Btu (Th)/second to Femtowatt
1 Btu(th)/s = 1.05435e+18 fW
Example: convert 15 Btu(th)/s to fW:
15 Btu(th)/s = 15 × 1.05435e+18 fW = 1.581525e+19 fW
Btu (Th)/second to Femtowatt Conversion Table
| Btu (th)/second | femtowatt |
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Btu (Th)/second
Btu (th)/second is a unit of power representing the rate of energy transfer, specifically one British thermal unit (th) per second.
History/Origin
The British thermal unit (th) has been used historically in the United States for measuring heat energy, and its use in power units like Btu (th)/s dates back to traditional energy and heat transfer calculations in engineering and thermodynamics.
Current Use
Btu (th)/second is primarily used in the United States for industrial and engineering applications involving heat transfer rates, although it is less common compared to SI units like watts.
Femtowatt
A femtowatt (fW) is a unit of power equal to 10^-15 watts, representing an extremely small amount of power.
History/Origin
The femtowatt was introduced as part of the SI prefixes to measure very small quantities of power, particularly in scientific and technological contexts, gaining recognition as the need to quantify minute power levels grew.
Current Use
Femtowatts are used in fields such as quantum physics, nanotechnology, and optical measurements, where precise measurement of extremely low power levels is required.