An overview of simulation tools for predicting the mean radiant temperature in an outdoor space

Naboni, Emanuele (The Royal Danish Academy of Fine Arts, School of Architecture, Copenhagen, Denmark ; EPFL, Lausanne, Switzerland) ; Meloni, Marco (The Royal Danish Academy of Fine Arts, School of Architecture, Copenhagen, Denmark) ; Coccolo, Silvia (EPFL, Lausanne, Switzerland) ; Kaempf, Jérôme (EPFL, Lausanne, Switzerland ; School of Engineering and Architecture (HEIA-FR), HES-SO // University of Applied Sciences Western Switzerland) ; Scartezzini, Jean-Louis (EPFL, Lausanne, Switzerland)

When modelling outdoor microclimates, researchers and designers need to be aware of the modelling capabilities and limitations of tools. This comparative study attempts to understand how tools such as CitySim Pro, ENVI-met, RayMan, Grasshopper plug-ins Honeybee / Ladybug and Autodesk CFD, evaluate the Mean Radiant Temperature (MRT), one of the main parameters governing human energy balance. To this purpose, the space underneath and surrounding the Rolex Learning Center, located on the EPFL campus in Lausanne, were modelled. Significant variations of MRT predictions were recorded. This led to the review of the physical modelling assumptions that each of the calculation engines operates. Based on the tools’ available documentation, answers to forums, interviews with the developers, and tool codes, the paper lists how all the variables that affect MRT are considered. Although not exhaustively, the paper lists the main differences among tools, leading to the understanding of the types of physical context that they could simulate.


Keywords:
Article Type:
scientifique
Faculty:
Ingénierie et Architecture
School:
HEIA-FR
Institute:
Energy - Institut de recherche appliquée en systèmes énergétiques
Date:
2017-09
Pagination:
6 p.
Published in:
Energy Procedia
Numeration (vol. no.):
2017, vol. 122, pp. 1111-1116
DOI:
ISSN:
18766102
Appears in Collection:



 Record created 2021-05-11, last modified 2021-05-28

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