Energy Efficiency Assessment of the Involvement of an Educational Building using the Prescription Method (RTQ-C)

Abstract

For a building to be considered sustainable, it is essential that it be energy efficient and assess the impact that its implementation and use will have on the environment. The evaluation of the energy efficiency of the systems that make up a building becomes fundamental. For this, the analysis of the envelope, its materiality, its conductivity indices and thermal transmittance directly influence the energy consumption of a building. Based on the Technical Quality Regulation for the Energy Efficiency Level of Commercial, Service and Public Buildings (RTQ-C), it was possible to evaluate and classify the efficiency levels of an educational building located in the municipality of Lajeado, Rio de Janeiro state. Grande do Sul, Brazil, applying natural and innovative materials for thermal insulation of wraps. The original rating of Level D goes to levels A and B, depending on the amount of insulating material applied. It is noteworthy that for the building to be classified as Level A, it is necessary to reduce the energy consumption of the artificial lighting system by 65%.

Energy Efficiency and Thermal Comfort Analysis in a Higher Education Building in Brazil

“…According to Spinelli et al [26], based on the RTQ-C, it is possible to evaluate and classify the efficiency levels of an educational building by applying natural and innovative materials to the thermal insulation of wraps. Based on two methods, the prescriptive method and the simulation method, the Regulation for Energy Efficiency Labelling of Commercial Buildings (RTQ-C), launched by PROCEL in 2009, classifies buildings at five levels: from "A" (most efficient) to "E" (least efficient) [27]. The prescriptive method uses the results of simulations of building prototypes for each Brazilian bioclimatic zone, where multi-linear regression calculates the energy performance of the building envelope, considering building geometry, window-to-wall ratio, glazing solar factor, and shading devices.…”

Development of natural and innovative material for application as thermal insulation in buildings

“…In a simulation using the RTQ-C method to assess energy efficiency, the application of natural and innovative elements on the facade of an educational building (brick + plaster), SPINELLI et al (2019b) presents the evolution of the classification from level D to level A, proving that the use of natural elements for thermal insulation helps in the energy efficiency of the building.…”