Rankine
Rankine is a now rarely used temperature scale named after the Scottish engineer and physicist William John Macquorn Rankine, who proposed it in 1859.
The symbol is °R (note that this symbol is also used to stand for the Rømer and Réaumur scales). Like kelvin, Rankine zero is absolute zero, but Fahrenheit degrees are used. As a result, a difference of 1°R is equal to a difference of 1°F, but 0°R is −459.67°F.
The Rankine cycle is an idealised thermodynamic cycle for a steam engine, i.e. one using water as the working fluid.
| Kelvin | [K] = [°R] · 5/9 | [°R] = [K] · 9/5 |
|---|---|---|
| Celsius | [°C] = [°R] · 5/9 − 273.15 | [°R] = ([°C] + 273.15) · 9/5 |
| Fahrenheit | [°F] = [°R] − 459.67 | [°R] = [°F] + 459.67 |
| Réaumur | [°Ré] = ([°R] · 5/9 + 273.15) · 4/5 | [°R] = ([°Ré] · 5/4 − 273.15) · 9/5 |
| Newton | [°N] = ([°R] − 491.67) · 11/60 | [°R] = [°N] · 60/11 + 491.67 |
| Rømer | [°Rø] = ([°R] − 491.67) · 7/24 + 7.5 | [°R] = ([°Rø] − 7.5) · 24/7 + 491.67 |
| Delisle | [°De] = (671.67 − [°R]) · 5/6 | [°R] = 671.67 − [°De] · 6/5 |
See also
| Celsius | Fahrenheit | Kelvin | |||
| Delisle | Leyden | Newton | Rankine | Réaumur | Rømer |
| Conversion formulas | |||||