Paper Conference

Proceedings of BSA Conference 2013: 1st Conference of IBPSA-Italy


Quasi-steady state and dynamic simulation approaches for the calculation of building energy needs: Part 2 thermal gains

Giovanni Pernigotto, Andrea Gasparella

Abstract: In order to assess the coherence between the dynamic simulation and the EN ISO 13790:2008 quasi-steady state method, this paper, differently from previous works in literature, analysed the discrepancy sources directly for thermal losses and gains instead of considering only the final result in term of energy needs. In the first part, the deviations between the thermal losses were evaluated. In this second part, the authors investigate the deviations between the estimation of thermal gains, both solar and internal ones, by means of an extensive use of dynamic simulation. More than 800 configurations obtained by the factorial combination of different values for building shape, envelope insulation and composition, window type, size and orientation and climatic conditions, are considered to identify the most important discrepancy sources and to improve the correspondence between simulation and quasi-steady state methods.
Pages: 303 - 312