Conference Paper
Proceedings of BauSim Conference 2016: 6th Conference of IBPSA-Germany and Austria
Generation of building geometry for energy performance simulation using Modelica
Generation of building geometry for energy performance simulation using Modelica
V. Bazjanac, T. Maile, C. Nytsch-GeusenAbstract: This paper shows that “center-line” geometry models cause over-estimation of building energy consumption. If a Modelica algorithm requires the use of geometry data, geometry data should be precise to maximize the benefits of Modelica use in simulation with EnergyPlus. Net areas of energy transmitting or blocking surfaces, space boundaries, and thermal properties of construction materials must all be precisely defined. It is recommended to model homogeneous constructions as heterogeneous sets. Higher geometry model precision is likely to yield more accurate simulation results. This, in turn, can somewhat reduce the often large gap between predicted and measured energy performance. Pages: 361 - 368 Paper: