Simulating and Comparing Different Vertical Greenery Systems Grouped into Categories Using EnergyPlus

Alberto Arenghi, Camilla Perra, Marco Caffi
2021 Applied Sciences  
The use of vegetation for the energy efficiency of buildings is an increasingly widespread practice; therefore, the possibility of representing these systems correctly with the use of simulation software is essential. VGS performances have been widely studied, but currently, the lack of a unique simulation method to assess the efficiency of different types of VGS and the absence of studies evaluating the performances of all the systems available, proposing simulation models for each of them,
more » ... ds to an incomplete energy representation. The aim of this study is to achieve a consistent and complete simulation method, comparing the different systems' performances. The research is made up of five main steps. Firstly, a classification to group these systems into specific categories was proposed; secondly an in-depth analysis of existing literature was worked out to establish the methods used for different types of VGS. The study of plant physiology allowed the definition of an energy balance, which is valid for all vegetated surfaces; then, each category was associated to a mathematical formula and finally integrated into the EnergyPlus software. The results achieved for each model were compared evaluating two important parameters for the termohygrometric conditions control: outside walls face temperatures and operative temperatures.
doi:10.3390/app11114802 fatcat:ghmdhr4kyrhgfdnp4oyzh6z2qe