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Évaluation de la consommation urbaine estivale du conditionnement d'air dans un environnement semi-aride.

Assessing summertime urban air conditioning consumption in a semiarid environment.

Auteurs : SALAMANCA F., GEORGESCU M., MAHALOV A., et al.

Type d'article : Article

Résumé

Evaluation of built environment energy demand is necessary in light of global projections of urban expansion. Of particular concern are rapidly expanding urban areas in environments where consumption requirements for cooling are excessive. Here, we simulate urban air conditioning (AC) electric consumption for several extreme heat events during summertime over a semiarid metropolitan area with the Weather Research and Forecasting (WRF) model coupled to a multilayer building energy scheme. Observed total load values obtained from an electric utility company were split into two parts, one linked to meteorology (i.e., AC consumption) which was compared to WRF simulations, and another to human behavior. WRF-simulated non-dimensional AC consumption profiles compared favorably to diurnal observations in terms of both amplitude and timing. The hourly ratio of AC to total electricity consumption accounted for around 53% of diurnally averaged total electric demand, ranging from around 35% during early morning to around 65% during evening hours. Our workhighlights the importance of modeling AC electricity consumption and its role for the sustainableplanning of future urban energy needs. Finally, the methodology presented in this article establishes anew energy consumption-modeling framework that can be applied to any urban environment wherethe use of AC systems is prevalent.

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Pages : 9 p.

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Détails

  • Titre original : Assessing summertime urban air conditioning consumption in a semiarid environment.
  • Identifiant de la fiche : 30011750
  • Langues : Anglais
  • Source : Environmental research letters - n. 8
  • Date d'édition : 2013
  • DOI : http://dx.doi.org/10.1088/1748-9326/8/3/034022

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