Projects

Lyon Part Dieu train station

Study of the indoor distribution of thermal comfort

The comfort level study was conducted using several steps / methods:

  • A coupling between CFD and dynamic thermal simulation for the calculation of natural ventilation with accurately calculated pressure coefficients
  • The detailed internal distribution of solar fluxes with Radiance software
  • Obtaining indoor comfort levels, hour by hour, for the whole year usinga metamodel in order to speed up the calculations on this very large model.

The result in pictures!

Perspective du projet (vue d’architecte).

Aperçu du site dans son environnement urbain, utilisé pour le calcul CFD.

Météorologie du site de Lyon-Part-Dieu prenant en compte l’effet d’îlot de chaleur urbain (ICU)

Pourcentage du temps en zone de confort (indicateur OTCA).

Niveau de confort P.E.T. en moyenne annuelle.

Distribution du champ des vitesses moyen en intérieur.

Distribution moyenne de la température radiante.

Non classé

World UTCI and MRT

A "new" database has been made available by the EU, from the Copernicus project (free access, login required).

UTCI and T_{MRT} , August 31st, 2018

 

This dataset provides a complete historical reconstruction of the UTCI (Universal Thermal Confort Index, a thermal comfort index as well as the MRT (Mean Radiant Temperature, essential for the thermal comfort) depuis 1979 jusqu’à aujourd’hui. Ces paramètres sont calculés par le modèle ERA5-HEAT (Human thErmAl comforT). Il s’appuie sur des réanalyses d’observations planétaires  qui permettent d’avoir une description cohérente et complète du climat à la surface de la terre, ainsi que de son évolution.

 

Technical data:

DATA DESCRIPTION
Data typeGridded
Horizontal coverageGlobal except for Antarctica (90N-60S, 180W-180E)
Horizontal resolution0.25° x 0.25°
Vertical resolutionSurface level
Temporal coverage1979-01-01 to near real time for the most recent version.
Temporal resolutionHourly data
File formatNetCDF
ConventionsClimate and Forecast (CF) Metadata Convention v1.6
VersionsUTCI v1.0
Update frequencyIntermediate dataset updated daily in near real time, Consolidated dataset monthly updates with 2-3 month delay behind real time.