{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "# Heat Capacity\n", "\n", "The heat capacity of a material/object describes the temperature change of the object if heat is added to (or removed from) the object. \n", "\n", "In geothermics, the heat capacity is of particular interest, as we extract heat from a system (the geothermal reservoir) and thus cool it. The heat capacity directly tells us, how much energy we theoretically can extract, if the reservoir body is cooled by X Kelvin. For example, imagine a cubic kilometer granite with a temperature of 200 °C. If this 1 km³ is cooled down by 20 °C (so 200 °C -> 180 °C) the available energy equals 1 billion litres oil. \n", "
\n", " | Temp[C] | \n", "cp[J/kgK] | \n", "
---|---|---|
0 | \n", "40.0 | \n", "881.113 | \n", "
1 | \n", "45.0 | \n", "889.392 | \n", "
2 | \n", "50.0 | \n", "896.739 | \n", "
3 | \n", "55.0 | \n", "904.091 | \n", "
4 | \n", "60.0 | \n", "911.635 | \n", "