Urban-scale energy simulation: A development of a novel method for parsimonious modelling -The example of solar shading model calculation

Enora Garreau , Thomas Berthou (1) , Bruno Duplessis (1) , Vincent Partenay , Dominique Marchio (1)

1 CES - Centre Efficacité Énergétique des Systèmes

In district energy simulation, new models are developed to address the issues arising in the urban-scale. These models can be at different levels of detail, which can influence the simulation time but also the multiple outputs in different ways. In this paper we present the development of a new methodology that can tackle the issues of parsimonious modelling, namely find a trade-off between the available data, the different modelling levels of detail, the expected output and the simulation time. More particularly, this paper focuses on one specific phenomenon, solar shading models at a district scale, and aims to analyse its influence on different performance indicators, such as the building energy needs, power demand or the thermal comfort, following multiple district's morphologies. The comparison's results on 3 types of districts show that static models are not always sufficient to assess accurately the heating demand or power needs. A more sophisticated model can be used without more computational time needed for simple districts. To choose the adapted models for a given context, a first table is given using the criteria D * H (density*height).

Domaines: Sciences de l'ingénieur [physics]; Energétique

Enora Garreau, Thomas Berthou, Bruno Duplessis, Vincent Partenay, Dominique Marchio. Urban-scale energy simulation: A development of a novel method for parsimonious modelling -The example of solar shading model calculation. BS2019, Sep 2019, Rome, Italy. ⟨hal-02393146⟩