• Source: Rankine scale

The Rankine scale ( RANG-kin) is an absolute scale of thermodynamic temperature named after the University of Glasgow engineer and physicist Macquorn Rankine, who proposed it in 1859.




History


Similar to the Kelvin scale, which was first proposed in 1848, zero on the Rankine scale is absolute zero, but a temperature difference of one Rankine degree (°R or °Ra) is defined as equal to one Fahrenheit degree, rather than the Celsius degree used on the Kelvin scale. In converting from kelvin to degrees Rankine, 1 K = ⁠9/5⁠ °R or 1 K = 1.8 °R. A temperature of 0 K (−273.15 °C; −459.67 °F) is equal to 0 °R.




Usage


The Rankine scale is used in engineering systems where heat computations are done using degrees Fahrenheit.
The symbol for degrees Rankine is °R (or °Ra if necessary to distinguish it from the Rømer and Réaumur scales). By analogy with the SI unit kelvin, some authors term the unit Rankine, omitting the degree symbol.
Some temperatures relating the Rankine scale to other temperature scales are shown in the table below.




See also


Outline of metrology and measurement
Comparison of temperature scales




Notes






References






Bibliography


Balmer, Robert (2011). Modern Engineering Thermodynamics. Oxford: Elsevier Inc. ISBN 978-0-12-374996-3.
Magnum, B.W. (June 1995). "Reproducibility of the Temperature of the Ice Point in Routine Measurements" (PDF). NIST Technical Note. 1411. Archived from the original (PDF) on 2007-03-07. Retrieved 2007-02-11.
Pauken, Michael (2011). Thermodynamics For Dummies. Indianapolis: Wiley Publishing Inc. ISBN 978-1-118-00291-9.
Thompson, Ambler; Taylor, Barry N. (2008). "Guide for the use of the International System of Units (SI)" (PDF). NIST Special Publication. 811. doi:10.6028/nist.sp.811e2008. Retrieved 2019-11-07.
Grigull, Ulrich (1986). Heat Transfer (PDF). Retrieved 2022-08-29.




External links

Kata Kunci Pencarian:

• Revolusi Industri Kedua
• Kematian panas alam semesta
• Skala Newton
• Rankine scale
• William Rankine
• Thermodynamic temperature
• Conversion of scales of temperature
• Rankine
• Temperature
• Absolute temperature scale
• Kelvin
• Rømer scale
• Scale of temperature