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57. OCCUPATIONAL RATE AND GLOBAL WARMING POTENTIAL:
CASE STUDY OF A SCHOOL BUILDING IN GOIANIA CITY
CALDAS, Lucas*
1
(lrc@coc.ufrj.br); PAULSE, Pablo
2
(pablo.paulse@gmail.com); HORA,
Karla
2
(karlaemmanuela@gmail.com); SPOSTO, Rosa³
(rmsposto@unb.br); TOLÊDO FILHO,
Romildo
(toledo@coc.ufr.br)¹
1
Instituto Alberto Luiz Coimbra de Pós-Graduação e Pesquisa em Engenharia/ Universidade
Federal do Rio de Janeiro (COPPE/UFRJ), Brasil
2
Universidade Federal de Goiás (UFG), Brasil
³Universidade de Brasília (UnB), Brasil
*Corresponding author
ABSTRACT
CO
2
emissions are one of the main causes of global warming. In public, commercial and industrial
buildings, the occupational rate is important when the objective is to study thermal comfort. Higher
occupational density in these buildings leads to greater energy consumption for artificial air
conditioning, and consequently, more CO
2
emissions. In this sense, the aim of this study was to
evaluate how different classroom occupational rates of a school building, located in Goiânia - GO,
interfere in the energy consumption and CO
2eq
emissions related to the construction, maintenance
and artificial acclimatization (operational stage) of the building. Three conditions were evaluated:
20, 30 and 40 students per classroom. The CO
2eq
emission data from the construction and
maintenance stages were taken from the national literature. For the conversion of the electric
power consumption, used in the artificial acclimatization of the classrooms, in CO
2eq
emissions,
three emission factors were considered: a high participation of renewable sources in the Brazilian
electrical matrix, with medium participation and with low participation. For the thermo energetic
simulation, the Design Builder software was used with climatic data of the region and material
properties obtained from Brazilian standards. The results showed a linear growth of energy
consumption and CO
2eq
emissions due to air conditioning with the increase of classroom
occupational rate. The different emission factors used, of the electricity, led to a difference in final
results of up to 270%, which shows the importance of choosing this factor for this type of building.
Finally, the CO
2eq
emissions index was obtained per student in which the situation with 40 students
per classroom was the most advantageous.
Keywords:
School buildings
;
Occupational rate; Energy consumption; Global warming potential.
TAXA DE OCUPAÇÃO E POTENCIAL DE AQUECIMENTO GLOBAL:
ESTUDO DE CASO PARA UMA EDIFICAÇÃO ESCOLAR LOCALIZADA
EM GOIÂNIA – GO
RESUMO
As emissões de CO
2
são apontadas como uma das principais causas do aquecimento global. Nas
edificações públicas, comerciais e industriais, o fator ocupação é importante quando o objetivo é
estudar o conforto térmico. Uma maior densidade ocupacional nessas edificações leva a um maior
consumo de energia para climatização artificial, e, consequentemente, maior quantidade de
emissões de CO
2
. Neste sentido, o objetivo do presente trabalho foi avaliar como diferentes
densidades de ocupação das salas de aulas de uma edificação escolar, localizada em Goiânia-