This report concretely describes a simulation method of
building thermal behavior.This calculation method has 2
features: the variable calculation time interval and the
solving method switching depending on whether the time
zone needs an integrated solution with an HVAC system or
not.First, the solving methods for the thermal equilibrium
equation of a room are described.Next calculation methods
for the thermal load of each component(e.g., wall and
window)are described.
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