A General-Purpose Conduction Heat Transfer Code
HEATING is a general-purpose conduction heat transfer program developed at
ORNL to solve steady-state and transient heat conduction problems in one-,
two-, or three-dimensional Cartesian, cylindrical, or spherical coordinates.
Although HEATING was not written specifically for the modeling of building
envelope components, it is particularly well suited for that task. Staff at
ORNL have considerable experience in the use of HEATING in the modeling of
steady-state and dynamic heat transfer through building envelopes. HEATING
was used to perform all of the heat transfer analyses needed to generate the
database used by the Whole-Wall Thermal Performance
Calculator. A specialized version of HEATING,
EQV_WALL, has been developed to characterize the dynamic thermal behavior
of massive wall systems exhibiting two- or three-dimensional heat transfer.
EQV_WALL calculates the response factors, thermal structure coefficients,
overall R-value, and capacitance of a wall. It then determines a one-dimensional,
multi-layer wall that exhibits the same dynamic thermal performance as the
original two- or three-dimensional wall system.