African Journal of
Environmental Science and Technology

  • Abbreviation: Afr. J. Environ. Sci. Technol.
  • Language: English
  • ISSN: 1996-0786
  • DOI: 10.5897/AJEST
  • Start Year: 2007
  • Published Articles: 1116

Full Length Research Paper

Reusing polyethylene terephthalate bottles (PETBs) for sealing panels manufacturing: The influence of bottle types on their thermal performance

Walfrido Alonso Pippo
  • Walfrido Alonso Pippo
  • Universidade Federal da Integração Latino-Americana (ILATIT), Curso de Engenharia de Energias Avenida Tancredo Neves, 6731, Jardim Itaipu Foz do Iguaçu, Paraná, Brasil.
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Ivan Dario Gomez Araujo
  • Ivan Dario Gomez Araujo
  • Universidade Federal da Integração Latino-Americana (ILATIT), Curso de Engenharia de Energias Avenida Tancredo Neves, 6731, Jardim Itaipu Foz do Iguaçu, Paraná, Brasil.
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Oswaldo Hideo Ando Junior
  • Oswaldo Hideo Ando Junior
  • Universidade Federal Rural de Pernambuco, Unidade Acadêmica do Cabo do Santo Agostinho, Departamento de Engenharia Elétrica e Eletrônica, Rua Cento Sessenta e Três, 300 - Cohab, Cabo de Santo Agostinho –PE, Brasil.
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Luciano Ari Fiamonzini
  • Luciano Ari Fiamonzini
  • Universidade Federal da Integração Latino-americana. Secretaria de Apoio Científico e Tecnológico Tancredo Neves, 6731. Jardim Itaipu Foz do Iguaçu, Paraná – Brasil.
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  •  Received: 04 December 2023
  •  Accepted: 23 January 2024
  •  Published: 29 February 2024

Abstract

This study aims to investigate the influence of PET bottle type used during PET panel manufacturing on their thermal performance. Used PETBs are an increasing threat to the environment. Plastic wastes cause air pollution, and water and soil contamination. Nowadays, vast amounts of such waste are unsafely disposed of in Brazil. The reuse of PETBs for PET panel manufacturing may contribute to minimizing or eliminating their recycling costs and reduce solid waste pollution. The classification and characterization of the most frequently commercialized PETBs were carried out.  A PET panel prototype, adjustable to the PETB types most commonly used in Brazil, was designed and built. The influence of PETB type on PET panels' thermal performance was evaluated by measuring the PET panel prototype's equivalent thermal resistance with an unfilled air chamber and with the air chamber filled with 5-, 2-, 1-, and 0.5-L PETBs, respectively. The null hypothesis, which corresponds to the equal variability between the equivalent thermal resistance for the filled and unfilled PET panel prototype's air chamber, was tested. F-tests were used.  The Null hypothesis for 5-L PETB may be accepted and rejected for 2-, 1-, and 0.5-L PETBs. The thermal transmittance of PETB panels manufactured with all PETB types included in this work meets the requirements established by law for any Brazilian bioclimatic subzone.

 

Key words: Solid waste, PET bottles disposal, resource reuse, heat transfer, low-cost housing, circular.