Energy performance of a social dwelling in Argentina and its retrofitting based on thermal simulation

Abstract

This study is concerned with the thermal- energy behaviour of a social dwelling in the central region of Argentina. The aim is to evaluate the energy consumption of the dwelling during the historical period between 1960 and 2011 and to obtain the thermo-physical model through simulation with ECOTECT and SIMEDIF. The availability of real data on energy consumption allowed the calibration through simulation and the design of the model. The retrofitting guidelines aimed at energy conservation and solar collection through the incorporation of thermal insulation in the envelope and an increase from 10.8% to 20.3% of the north facing solar glazing area were applied. The results showed that, in addition to meetingthe recommendations of the regulations in force, energy retrofitting leads to the achievement of the objective of this study, improvingthe level of energy labelling with thermally comfortable environments. From an energy intervention perspective, the contained energy increases by 4.3 and 7.1%, reaching Level B and A of the IRAM Standard, respectively, with heating energy savings of 53.7 and 85.6%. The annual consumption per square meter of usable area is 34.9 kWh/m², which is an interesting value, even though it does not yet reach that of the passive house level.

Keywords:
Energy performance; Single house; Energy simulation; Thermal comfort; Energy retrofitting