An Improved Algorithm For Thermal Dynamic Simulation Of Walls
Using Z-transform Coefficients
Author(s)
G. Beccali, M. Cellura, V. Lo Brano & A. Orioli
Abstract
An improved algorithm for thermal dynamic
simulation of walls using 2-transform
coefficients
G. Beccali', M. cellural, V. Lo Brano' & A. Oriolil
'Dipartimento di Ricerche Energetiche ed Ambientali, DREAM
Palermo University, Italy.
Abstract
The Transfer Function Method (TFM), recommended by American Society of
Heating, Refkigerating and Air-conditioning Engineers (ASHRAE), is one of the
most modern tools available to solve heat transfer problems in building
envelopes and environments. TFM utilises Z-transform to solve the equations
system that describes the heat transfer in a multi-layered wall. Due to an analogy
with an electric circuit, it is possible to write the equations system in a matrix
suitable to be solved by computer. Authors carried out an analysis on an
historical building placed in the south of Italy to test the reliability and the quality
of the thermal dynamic simulation using TFM. The analysis is performed using
some control systems tools like Bode plots, step response, root an
Keywords
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