A verification of CitySim results using the BESTEST and monitored consumption values

This paper presents a verification of CitySim, a largescale building energy simulation tool based on a simplified thermal model. First, the main assumptions behind the simplified model are presented. Then, CitySim is compared to other detailed simulation tools on case studies defined in the Building Energy Simulation Test (BESTEST) validation procedure. Finally, the predictions of CitySim regarding the annual heating load are compared with the monitored consumption of a building located on the campus of the Swiss Federal Institute of Technology Lausanne (EPFL). Regarding the BESTEST, CitySim gives annual heating and cooling results together with peak heating and cooling loads that are within the acceptable range defined by reference simulation tools except for the annual heating load of case 960 and the peak cooling of case 610 but the differences are rather small (less than 1%). Regarding the EPFL campus building, CitySim gives an annual heating consumption within a 5% range of the monitored consumption of two reference years. The paper concludes that despite its simplified thermal model, CitySim results remain consistent with more detailed programs and the monitored heating consumption of an office building. These results reinforce the confidence in the tool to predict annual and peak load energy needs for conditioning buildings.

Baratieri, Marco
Corrado, Vincenzo
Gasparella, Andrea
Patuzzi, Francesco
Published in:
Proceedings of the 2nd Building Simulation Applications conference, 215-222
Presented at:
Building Simulation Applications BSA 2015, Bozen-Bolzano, Italy, 4th – 6th February 2015
Bozen-Bolzano, Bozen-Bolzano University Press

Note: The status of this file is: Anyone

 Record created 2015-12-29, last modified 2019-12-05

Download fulltextPDF
External link:
Download fulltextURL
Rate this document:

Rate this document:
(Not yet reviewed)