The use of vegetation for the energy efficiency buildings is an increasingly widespread practice; therefore, possibility representing these systems correctly with simulation software essential. VGS performances have been widely studied, but currently, lack a unique method to assess different types and absence studies evaluating all available, proposing models each them, leads incomplete represe...

This paper addresses optimal architectural design using BIM at the design stage. We present a comparative study of the differences between datacentric and process-driven interoperability approaches during the design phases. The authors will elaborate on two approaches, summarize their consequences, and present a real application of the approach using a DAI (Design Analysis Integration) prototyp...

Thermal building simulation programs, such as EnergyPlus, approximate solutions of a differential algebraic system of equations. While the theoretical solution is usually continuously differentiable in the building design parameters, the approximate solutions may not even be continuous, due to adaptive variations in solver iterations and the use of adaptive integration meshes. Hence, when a smo...

In this work, the test case 1 of german standard VDI 2078 is used to compare softwares OpenModelica and EnergyPlus. The mentioned provides calculation methods thermal load temperature cases for validation zones’ models. This case’s behavior was evaluated in both softwares, keeping reference values provided by standard. Pearson’s correlation coefficient calculated between obtained EnergyPlus zon...

Despite inter-building longwave radiative exchanges playing an important role in determining building energy and environmental performance, simulation tools (e.g. EnergyPlus) simplify this by assuming the surface temperature of surrounding buildings to be equal air temperature, therefore cause bias. Here we propose a ‘spin-up’ approach update external using either or isolated temperatures. Neig...