# Relative thermal resistance

Jump to: navigation, search

Relative thermal resistance is a measure of the energy required to mix water of two different temperatures (and thus different densities). Comparisons will be made against the differences in the density of water at 3.98 °C and 5 °C. (Wetzel 1983) Since this is a relative measure, there are no units involved.

It is calculated at intervals of 1 cm using the following equation: ${\displaystyle RTR=((p_{1}-p_{2})\times 10^{6})/8}$ where ${\displaystyle p_{2}}$ is the density at the bottom of the stratum being considered and ${\displaystyle p_{1}}$ is the density at the top of the stratum being considered