But there is one major difference: The amount of thermal energy which could be brought into the DUT is fixed and mainly defined by the thermal capacitance
of the DUT.
Within the developed MATLAB modeling environment, the two-dimensional grid of brick thermal capacitance
nodes can be easily adjusted by specifying how many rows and columns of brick nodes will be used.
where [C.sub.body] is the thermal capacitance
(J/K) of the human body.
At the kth node from the left, the heat flow caused by the power dissipated inside the cell is split into the heat flow into the thermal capacitance
and through the thermal resistance, respectively.
where c is the thermal capacitance
 the expression of dQ is simplified to
(7) Second, the system has a high thermal capacitance
, so control sequences should avoid any requirements for rapid modulation.
In Equation 5, the term on the left-hand side of the equation represents the thermal capacitance
of the indoor air space.
It is often possible to work with less of a temperature difference depending on the thermal capacitance
of the building materials.
There, on a very difficult site next to one of the main railway lines from London to Scotland, quite ordinary and easily available materials such as sand bags, straw bales, solar collectors and corrugated polycarbonate sheet were bravely used to make an experimental building with unusual thermal capacitance
and receptivity to ambient energy.
Thus it is very important to determine the thermal resistance ([R.sub.th]) and thermal capacitance
([C.sub.th]) accurately for a reliable circuit design.
Antonopoulos and Koronaki (1998) investigated the concept of effective thermal capacitance
, a useful concept for simplified modeling.
The borehole is usually considered just by means of a thermal resistance, neglecting its thermal capacitance
. This approach can be applied when variations of the heat extraction-injection rate are in a time scale longer than the characteristic response time of the BHE.