Paper Conference

Proceedings of ASim Conference 2016: 3rd Asia conference of IBPSA-China, Japan, Korea


Application of calibration's simplified methodology at computer simulation models in the CWA climate context

P. Araújo Neto, A. Crispim, B. Guimarães, C. Silva

Abstract: Computer simulation tools assess environmental performance of designs from the earliest stages of a projects' life cycle. To achieve reliable readings, a preliminary step called calibration is recommended. This procedure requires a certain level of knowledge from professionals regarding thermal comfort and energy efficiency that will be required for input into the simulation software. The objective of this work is to verify the applicability of a simplified calibration methodology applied in the context of a CWA climate. As a case study, a small building located in Brasilia-Brazil was monitored during the dry period, using a digital data logger and the results were compared to a virtual model using DesignBuilder v5.0.0.137 and Energy Plus v8.0. The model calibration process consisted in changing the grounds' temperature and the thermal properties of materials, varying in-10%, 10% and 20%, in order to obtain readings equivalent to the actual buildings' performance. The results demonstrate that the softwares' algorithm produced simulated readings that were very similar to the data obtained from the monitoring of the real building. Moreover, the simulations showed that the version of the software does not recognize changes made to the input parameters related to the grounds' temperature and changes to the thermal properties of materials had little implications in the results.
Keywords: Methodology, calibration, computer simulation