Proposta de alterações das estratégias bioclimáticas sob a ótica da avaliação do desempenho térmico e eficiência energética : estudo de caso em unidade habitacional de Cuiabá/MT

Abstract

This study evaluates the thermal performance and the level of energy efficiency and proposing changes with bioclimatic strategies in a residence of Cuiabá/MT. It was chosen housing consequent of the current production space. The building has construction system for fast execution ("Jetcasa"). The building was divided into six thermal zones, three of them with prolonged permanency. A micrometeorological station was used to obtain snapshots environmental data. Four HOBO U12-012 datalogger with TMC20HD cables were used to measure soil temperature and internal variables of the living room, home office and double room zones which air temperature, relative humidity and temperature of the globe to the thermal performance evaluation of building by NBR 15.575 (ABNT, 2013) methods. Three HOBO UX90-006x datalogger are used to examine the occupancy and light. The infrared camera recorded the surface temperatures of building elements. EnergyPlus 8.0 software was used to determine the level of energy efficiency of the building by the RTQ -R method. Measurements were two periods of 15 days: warm dry (28/06 to 12/07/2013) and warm humid (31/12/2013 to 14/01/2014). The warm dry period has low humidity and high daily temperature ranges and warm wet, high humidity and low daily temperature variations. The living room was the thermal zone with worse thermal performance and energy efficiency and the double room had the best. The walls have greater interference for the heating gain of the room and the home office. Energy efficiency was level C. The proposed changes to the building of study are the protections openings, protections walls, planting vegetation and installing water heating systems.