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Outil de simulation thermique modulaire pour calculer la consommation énergétique des unités CVC dans les wagons.

A modular thermal simulation tool for computing energy consumption of HVAC units in rail vehicles.

Auteurs : DULLINGER C., STRUCKL W., KOZEK M.

Type d'article : Article

Résumé

A method and its implementation for computing the energy consumption of the heating, ventilation and air conditioning (HVAC) unit of a light rail vehicle is presented. In order to simulate the energy consumption of the HVAC a modular structured simulation model is generated which provides access to the essential HVAC parameters. The simulation combines the HVAC system with a dynamic thermal vehicle model and includes operational and weather inputs. The vehicle model is obtained by a data-based system identification utilizing data from climatic wind tunnel experiments. Due to a gray-box modeling approach its parameters can be physically interpreted. Because of the small sampling time (Ts = 10 s) effects of transient switching operations can be observed. The holistic thermal simulation model is integrated in a user-friendly tool with graphical user interface (GUI). The tool enables an efficient processing of simulation data sets, visualization of time-domain results and computation of the annual energy consumption of the HVAC system. A tram line in Vienna was used to obtain real measurements for validation of the simulation model. The results of both short-time and long-time simulations yield realistic statements.

Détails

  • Titre original : A modular thermal simulation tool for computing energy consumption of HVAC units in rail vehicles.
  • Identifiant de la fiche : 30014879
  • Langues : Anglais
  • Source : Applied Thermal Engineering - vol. 78
  • Date d'édition : 03/2015
  • DOI : http://dx.doi.org/10.1016/j.applthermaleng.2014.11.065

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