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Proceedings of BauSim Conference 2010: 3rd Conference of IBPSA-Germany and Austria

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Overheating problem in single family passive house

Jana Mlakar, Janez Štrancar

Abstract: Interior temperature significantly influences the comfort in the house. While temperatures lower than 20˘C can be found in poorly insulated objects accompanied with the condensation problems, the temperatures above 26°C usually points to the overheating problem in a passive house as a highly insulated object and extremely weakly coupled to an environment. Since already a small energy input can raise the internal temperature significantly, the shadowing and internal energy sources minimization should be considered to reduce the overheating problem. To provide more information on that issue we analyzed data collected from a single Slovenian family passive house and associated different energy sources’ contributions to overheating of the passive house. Results show that cooling of the house at night in hot summer days and strict shading of the western windows is necessary to keep internal temperature on level comfortable for their residents.
Pages: 274 - 280
Paper:
bausim2010_274