Método simplificado de avaliação de conforto térmico da INI-C: desempenho e limitações

Roberta Vieira Gonçalves de Souza; Helder Gattoni Medeiros; Beatriz Carvalho Avidago Geraldo; Alice Selim de Salles Camilo; Maria Angélica Vieira Pinto

doi:10.18830/1679-09442026v19e56782

Authors

Roberta Vieira Gonçalves de Souza Department of Technology, Design, Architecture and Urban Planning, Federal University of Minas Gerais. https://orcid.org/0000-0003-0036-961X
Helder Gattoni Medeiros Postgraduate Program in Built Environment and Sustainable Heritage, Federal University of Minas Gerais. https://orcid.org/0000-0001-5555-3647
Beatriz Carvalho Avidago Geraldo Architecture and Urbanism Undergraduate Course, Federal University of Minas Gerais. https://orcid.org/0009-0001-7640-9801
Alice Selim de Salles Camilo Architecture and Urban Planning Course, Federal University of Minas Gerais. https://orcid.org/0009-0006-2004-5398
Maria Angélica Vieira Pinto Postgraduate Program in Built Environment and Sustainable Heritage, School of Architecture, Federal University of Minas Gerais https://orcid.org/0000-0002-1508-5516

DOI:

https://doi.org/10.18830/1679-09442026v19e56782

Keywords:

Natural Ventilation, Thermal Comfort, Simulation Method, Simplified Method, School Buildings

Abstract

In 2009, Brazil implemented the RTQ-C to evaluate the energy efficiency of commercial, service, and public buildings. However, the RTQ-C was heavily oriented toward artificially conditioned buildings. In 2021, the INI-C was published, replacing the RTQ-C. Among other changes, it introduced a simplified method for assessing the percentage of hours in thermal comfort (PHOCT) for naturally ventilated spaces. This article aims to verify the applicability of the method using a Metamodel in Python. For this purpose, 82 buildings on the UFMG Campus were studied, divided into three groups based on the method's applicability: 1) applicable, 2) applicable with adjustments, and 3) not applicable. Only 16% of the analyzed buildings belonged to Group 1. The simplified method was then applied with modifications to three buildings from Group 2, and the results were compared with computational simulation results in EnergyPlus. It was found that, in these cases, the PHOCT values obtained from the Metamodel are close to those from the simulation method, with a difference not exceeding 5.7%. To summarize, it is considered that the new method is capable of providing a general evaluation of naturally ventilated buildings. However, adjustments should be made to broaden its applicability.

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Author Biographies

Roberta Vieira Gonçalves de Souza, Department of Technology, Design, Architecture and Urban Planning, Federal University of Minas Gerais.

Architect and Urban Planner from UFMG (1990), completed a master's degree (1997) and
doctorate (2004) in Civil Engineering from UFSC, with a sandwich doctorate from the
Polytechnic University of Madrid. Associate Professor at the UFMG School of Architecture
since 1997, where she works in the Day and Night Architecture and Urbanism courses and in
the Postgraduate Program in Built Environment and Sustainable Heritage, having been
co-advisor in the Structural Engineering and Mechanical Engineering programs at UFMG.
Productivity Scholarship in Technological Development and Innovative Extension level II
from CNPq. Coordinator of the Environmental Comfort and Energy Efficiency Laboratory and
the CNPq Research Group on Environmental Comfort at EAUFMG. Coordinator and member of
research projects funded by CNPq, FAPEMIG, ELETROBRAS and CEMIG. Coordinated the review
of ABNT NBR 15.215 - "Natural Lighting" from 2021 to 2024. Coordinated or participated in
research projects in partnership with UFSC, UnB, UFAL, USP, UFPR. Expert in the area of
Public Lighting, having carried out 15 examinations in the area for TJMG. He published
more than 40 articles in journals and 150 articles in conferences. Reviewer of international
and national magazines such as Energy and Buildings, Sustainable Cities and Society,
Science and Technology for the Built Environment, Revista de Arquitectura, Ambiente
Construído, PARC, GTP, RTS, CADPUC and ad hoc reviewer for development agencies (CAPES,
CNPq , FAPESP, FACEPE, UFF, among others).Productivity Scholarship in Technological
Development and Innovative Extension level II from CNPq. Coordinator of the Environmental
Comfort and Energy Efficiency Laboratory and the CNPq Research Group on Environmental
Comfort at EAUFMG. Coordinator and member of research projects funded by CNPq, FAPEMIG,
ELETROBRAS and CEMIG. Coordinated the review of ABNT NBR 15.215 - "Natural Lighting" from
2021 to 2024. Coordinated or participated in research projects in partnership with UFSC,
UnB, UFAL, USP, UFPR. Expert in the area of Public Lighting, having carried out 15
examinations in the area for TJMG. He published more than 40 articles in journals and 150
articles in conferences. Reviewer of international and national magazines such as Energy
and Buildings, Sustainable Cities and Society, Science and Technology for the Built
Environment, Revista de Arquitectura, Ambiente Construído, PARC, GTP, RTS, CADPUC and ad
hoc reviewer for development agencies (CAPES, CNPq , FAPESP, FACEPE, UFF, among others). Member of the scientific associations ANTAC, Built Environment Technology Association
(where she was vice-president, coordinating administrative director and sub-coordinator
of the Comfort GT) and CIE-Br, International Lighting Commission - Brazil branch. It
operates in the areas of natural lighting, energy efficiency in buildings, thermal
performance, thermal comfort, building benchmarking and climate change. Consultant in
sustainability, energy efficiency in buildings working in the areas of PBE Edifica Label,
NBR15.575 and LEED. He served on the organizing committee of the PLEA 2001 and ENCAC 2007
events, having been president or member of the Scientific Committee of several ENTAC and
ENCAC events, among others. Coordinates the GRA - LABCON-UFMG Environmental Labeling Group,
responsible for issuing several National Energy Conservation Labels from PBE Edifica,
having been one of the first promoters of the process in the country and responsible for
consulting to obtain 8 Procel Edifica Seals. He has a short degree in Literature from UFMG. Administratively, she was Head and Deputy Head of the TAU Department, Coordinator and Sub-coordinator of the Postgraduate Program in Sustainable Heritage and Built Environment, coordinator of the Architecture Course Collegiate, representative of the School of Architecture at CREA and representative at the Undergraduate Chamber from UFMG. He is currently a member of the Extension Center of the School of Architecture and representative in the area of Applied Social Sciences of the Dean of Research at UFMG.

Helder Gattoni Medeiros, Postgraduate Program in Built Environment and Sustainable Heritage, Federal University of Minas Gerais.

Holds a degree in Special Teacher Training Program from the Federal Center for Technological Education of Minas Gerais (2016), a degree in Mechanical Engineering from the Federal University of Minas Gerais (2014), a specialization in Public Management from the Pedagogical Institute of Minas Gerais (2017), a master's degree in Built Environment and Sustainable Heritage from the Federal University of Minas Gerais (2022), and a technical-professional course in Mechanical Engineering from the Federal Center for Technological Education of Minas Gerais (2005). Currently works as a TECHNICAL LEVEL PROFESSIONAL - BALLAST OPERATOR at Petróleo Brasileiro - Rio de Janeiro - Headquarters. Has experience in the field of Mechanical Engineering, mainly working on the following topics: RTQ-C, INI-C, EnergyPlus, Energy Efficiency, Simulation.

Beatriz Carvalho Avidago Geraldo, Architecture and Urbanism Undergraduate Course, Federal University of Minas Gerais.

Academic of the 7th period of the Architecture and Urbanism Graduation (evening) at the
Federal University of Minas Gerais. I currently work as an Architecture Intern in the
Engineering Sector of the Research Development Foundation (FUNDEP), developing
three-dimensional models in the REVIT software, in addition to compatibility of projects
and extraction of quantities using the BIM platform.

Alice Selim de Salles Camilo, Architecture and Urban Planning Course, Federal University of Minas Gerais.

She has secondary-secondary education at Escola Educação Criativa (2021). She is currently
an Intern at the Social Interest Regularization Directorate - PBH. He has experience in
the area of Architecture and Urbanism, with an emphasis on Architectural Design and Urbanism.

Maria Angélica Vieira Pinto, Postgraduate Program in Built Environment and Sustainable Heritage, School of Architecture, Federal University of Minas Gerais

Doctoral candidate in the Graduate Program in Built Environment and Sustainable Heritage – UFMG, Master's degree in Structures from PROPEC – UFOP, Civil Engineering from the School of Mines – UFOP. Professor at the Federal Institute of Education, Science and Technology of Minas Gerais, IFMG Congonhas Campus. Member of the Research Project Evaluation and Monitoring Committee (CAAP) in the area of Applied Social Sciences at IFMG, in accordance with the publication of Ordinance No. 0782 of February 23, 2026.

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