Daylight analysis by INI-C: potential for integration in different methods

Authors

DOI:

https://doi.org/10.19180/2177-4560.v19n22025p325-345

Keywords:

Energy efficiency, INI-C, Daylighting

Abstract

Buildings contribute to a significant portion of the energy expenditure in Brazil, with the artificial lighting system being one of their greatest demands in nonresidential buildings. Harnessing daylight, as long as it offers comfort to the user and is integrated with the artificial lighting system, is one of the best strategies to reduce energy consumption for lighting. Therefore PBE Edifica launched the INI-C in2022, that presents a recent instrument that allows the assessment of the integration between the two systems. The study focused in comparing the daylighting potential using the simplified and simulation methods of the INI-C, using the UFMG’s Engineering Library as a study case. Additionally, an investigation was carried out into how to ensure effective integration with the artificial lighting system using different normative bases. The simulation revealed a 27% greater potential for daylight integration compared to the simplified method. Despite this, the division of circuits for operating the luminaires, required by both methods, may not ensure the most efficient integration with artificial light, being necessary to create more awareness to the users.

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Author Biographies

  • Larissa Monteiro, UFMG
    Architect and Urban Planner from the Federal University of Ouro Preto. Master's in Built Environment and Sustainable Heritage from the Federal University of Minas Gerais.
  • Lucas Barbosa Prudente, UFMG
    Student of Architecture and Urbanism at the Federal University of Minas Gerais.
  • Hugo de Araújo e Silva, Universidade Federal de Minas Gerais
    Student of Architecture and Urbanism at the Federal University of Minas Gerais.
  • Roberta Vieira Gonçalves de Souza, Universidade Federal de Minas Gerais
    Architect and Urban Planner from the Federal University of Minas Gerais. PhD in Civil Engineering from the Federal University of Santa Catarina. Full Professor at the School of Architecture of the Federal University of Minas Gerais.

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Published

10-12-2025

Issue

Vol. 19 No. 2 (2025): Boletim do Observatório Ambiental - IFF

Section

Original articles

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Copyright (c) 2025 Larissa Arêdes Monteiro, Lucas Barbosa Prudente, Hugo de Araújo e Silva, Roberta Vieira Gonçalves de Souza

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How to Cite

Daylight analysis by INI-C: potential for integration in different methods. Boletim do Observatório Ambiental Alberto Ribeiro Lamego, [S. l.], v. 19, n. 2, p. 325–345, 2025. DOI: 10.19180/2177-4560.v19n22025p325-345. Disponível em: https://editoraessentia.iff.edu.br/index.php/boletim/article/view/23594.. Acesso em: 14 dec. 2025.