MODELAGEM DA VENTILAÇÃO NATURAL COM A APLICAÇÃO DO OBJETO ENERGY MANAGEMENT SYSTEM DO PROGRAMA ENERGYPLUS

Abstract

The EnergyPlus program allows to understand the thermo-physical behavior of hybrid ventilation buildings, where the ventilation is neither entirely natural, nor entirely mechanical, improving the building energy efficiency and reducing the energy consumption. Consequently, this program offers the Energy Management System (EMS) tool, an advanced control system that operates from a native programming language. Thus, the main objective of this study is to understand the behavior of translucent windows elements during the use of natural ventilation based on EnergyPlus program simulations. Firstly, the EnergyPlus program limitations regarding air changes by ventilation and heat exchanges by radiation through windows were identified. Then, the EMS was adopted to replace the translucent elements of the window during the use of natural ventilation. Results have shown that the EnergyPlus program does not allow the absence of translucent elements in the windows, being necessary to model a material that allows the heat flow through the translucent element of the window without resistances, simulating an open window.