The goal of this study is to evaluate the accuracy of
the Portuguese thermal regulation simplified
methodology for existing buildings and to assess the
influence of different parameters on the building final
energy performance evaluation.
Simple “in-situ” measurement techniques were
carried out to calibrate the input data in this
methodology.
The results obtained with the simplified
methodology, with and without the input data
calibration, were compared with the results obtained
with the detailed methodology and it was concluded
that the “in-situ” calibration could contribute to
improve the accuracy of the energy needs estimation
and that the simplified methodology results are, in
average, 11% higher than the detailed methodology.Department of Energy United States of America, The light house, SUS