SET Proceedings 2978-4387 Caravel Press 10.65582/set.2007.032 2007.032 Simulation assessment of bioclimatic strategies to improve thermal behaviour of a lightweight building prototype PicciónAlicia CamachoMagdalena LópezMaría Noel MilicuaSara Departamento de Clima y Confort en Arquitectura, Facultad de Arquitectura Universidad de la República, Montevideo, Uruguay 05092007 6 1 978-1-995850-09-2 194 199 5 September 2007 © 2007 Copyright WSSET 2007

In Uruguay, get more often the use of lightweight building system with low thermal inertia to build dwelling for low resources people, for that reason it is essential to rationalize costs. The studies made, the users opinion and technical information available showed that it is necessary to investigate about lightweight building system so as to improve its thermal behaviour. The aim of the task was to identify the influence of some passive design strategies in the interior temperature fluctuation and energy consume of a lightweight prototype located in Montevideo, Uruguay. The prototype is made with polystyrene panels finished with metallic sheet. Methodology: Temperatures and humidity have been being collected during the application of different strategies: solar protection, thermal mass and solar protection plus thermal mass. Ventilation strategy was use as a control variable. The same strategies were analysed to asses its thermal performance by running the simulation programs. First of all it was determinated which of the programs faithfully represented the thermal performance of the prototype, choosing: Simedif program. Results: The evaluation by predicted performance shows that the most energy efficient strategy is the one which associate solar protection and thermal mass.

 simulation bioclimatic strategies energy and comfort 5 to 7 September 2007 6th International Conference on Sustainable Energy Technologies SET2007 6 Santiago, Chile Sogari et all 2006. “Análisis del comportamiento térmico de un prototipo de vivienda familiar de madera”, en Revista de Asades 2006, Vol 10, Buenos Aires, Argentina. Lomas, K and Eppel H. (1992) Sensitivity analysis techniques for building thermal simulation programs. Energy and Buildings Vol 19 No1 pp 21-45. Chauvie, V. 2003. Selección de programas para la predicción del comportamiento térmico de edificios. Informe final. Montevideo. Yarke, E et all 2006. “Evaluación energética de las primeras mejoras constructivas realizadas sobre un laboratorio de la Universidad Nacional de Lujan", Revista de Asades 2006, vol. 10, Argentina.