ORALS

SESSION: IronTuePM1-R2	Assis International Symposium (9th Intl. Symp. on Advanced Sustainable Iron & Steel Making)
Tue. 28 Nov. 2023 / Room: Dreams 2
Session Chairs: Tateo Usui; Giulio Antunes De Medeiros; Session Monitor: TBA

14:55: [IronTuePM107] OS Keynote
ELECTRIC VEHICLES: A POSSIBLE RESPONSE TO CLIMATE EMERGENCIES
Nathalia Balzana Anacleto¹ ; Gabrielle De Castro Martins² ; Michelle Dos Santos Marinho³ ; ¹Univ. Federal Fluminense, Niterói, Brazil; ²UNIVERSIDADE FEDERAL FLUMINENSE, São Gonçalo, Brazil; ³Hélio Alonso Integrated Colleges, Rio de Janeiro, Brazil;
Paper Id: 358 [Abstract]

Climate change and environmental impacts reflect the externalities of a global model of unsustainable production and consumption. However, even in the face of a chaotic environmental scenario, the exploitation of resources and consequently Greenhouse Gas (GHG) emissions continue to increase, thus causing an increase in temperature and possible irreversible impacts on the planet. The Circular Economy presents itself as a tool for mitigating extraction and cooperation for efficient resource management, avoiding waste [1] . Currently, the transport sector is the main responsible for Greenhouse Gas (GHG) emissions, making the transformation of this sector's value chain urgent[2] . In a national context, motor vehicles are the main means of transport used, in the year 2022 there were approximately 115 million vehicles registered in Brazil. Revealing the expressive growth rate compared to 2010 data, with approximately 65 million vehicles circulating in the national territory[3] . A study carried out in 2018 shows that the transport sector was responsible for 23% of the total amount of CO2 emissions worldwide in 2017. In addition to being one of the world's largest consumers of oil[4] . The 100% electric vehicle therefore appears as a promising solution to this scenario of mitigating air pollution, especially in urban centers where its concentration occurs. This article proposes to develop a method for collecting and analyzing the characteristics observed by consumers when choosing their own vehicle. It seeks to identify stages of awareness and the transition movement between internal combustion vehicles and 100% electric vehicles. To this end, the research developed a form via Google Forms aimed at evaluating the parameters used by consumers when considering the possibility of migrating to 100% electric models. This form was applied to seventy-six (76) citizens living in the State of Rio de Janeiro, invited to participate in the research. The findings suggest evidence of different stages of awareness and acceptance regarding the transition to 100% electric vehicles. Thus, one of the solutions proposed by this work is the transition from internal combustion vehicles to electric vehicles fueled with ethanol, which, in addition to contributing significantly to reducing dependence on fossil fuels, encourage the search for renewable energy sources such as those coming from of biomass. In order to positively impact the scenario of GHG emissions caused by the sector.

References:
[1] ANACLETO, Nathália Balzana. (2022). Circularidade na construção civil: análise e avaliação aplicadas a oito casos no estado do Rio de Janeiro (Dissertação de Mestrado). Programa de Pós-Graduação em Arquitetura e Urbanismo da Universidade Federal Fluminense, Niterói.
[2] MINISTÉRIO DO MEIO AMBIENTE. Inventário nacional de emissões atmosféricas por veículos automotores rodoviários. Brasil, 2013.
[3] IBGE. Frota de Veículos. 2023. Disponível em: . Acesso em: junho de 2023
[4] CORDEIRO, Ana Carolina; LOSEKANN, Luciano. 2018. Os desafios do processo de difusão do carro elétrico no Brasil. Disponível em: <04c844642997f2143aab25578215f3257293.pdf (semanticscholar.org)>. Acesso em: junho de 2023

SESSION: IronWedAM-R2	Assis International Symposium (9th Intl. Symp. on Advanced Sustainable Iron & Steel Making)
Wed. 29 Nov. 2023 / Room: Dreams 2
Session Chairs: Alexandro Uliana; Mauricio Cota Fonseca; Session Monitor: TBA

12:25: [IronWedAM03] OS
CIRCULAR ECONOMY: ANALYSIS OF THE EFFECTS OF THE USE OF RECYCLED STEEL IN THE NAVAL SECTOR
Karolyna Gomes Dos Santos¹ ; Nathalia Balzana Anacleto² ; Paulo Assis³ ; ¹Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil; ²Univ. Federal Fluminense, Niterói, Brazil; ³UFOP, Ouro Preto, Ouro Preto, Brazil;
Paper Id: 51 [Abstract]

The revolution of industries provided the increase and speed of productions, mainly the production of steel [1]. In the specific context of shipbuilding, the use of steel plays a fundamental role in the design of vessels. Despite being a 100% recyclable material [2], there are few incentives for this practice in the sector. This is due to the predominant linear production model, where waste is still seen as a worthless by-product that cannot be reused. In this sense, the use of steel from scrap recycling, inserting it in the construction phase of vessels, emerges as one of the ways to promote the circular economy and guide the adoption of good construction practices for this sector. This paper intends to identify Transpetro's fleet of oil tankers and estimate the total steel demand for the construction of Suezmax class oil tankers. Based on the data collected, an analysis was made of the possible impacts caused if this fleet were built exclusively with recycled steel[3]. The article discusses if Transpetro [4] has any decommissioning fund and/or sustainable decommissioning planning, aiming to guarantee the reinsertion of the steel from these vessels in a new production cycle. It also discusses fiscal policies [5] that encourage the reinsertion of steel in the shipbuilding chain and how legislation has cooperated or delayed circularity actions in the sector. We will see that by incorporating circularity practices in this industry it will be possible to dissociate the construction process from the practice of extraction of new natural resources, resulting in the reduction of operational costs, promotion of the ship steel recycling market, and the environmentally correct disposal of this waste. Contributing significantly to the preservation of the environment and the reduction of Greenhouse Gas (GHG) emissions.

References:
[1] PIRES, Marco Cordeiro. O Brasil, o Mundo e a Quarta Revolução Industrial: reflexões sobre os impactos econômicos e sociais. Revista de Economia Política e História Econômica. Número 40 – julho de 2018.
[2] Instituto Nacional dos Distribuidores de Aço - INDA. (2021). AÇO: UMA ESCOLHA SUSTENTÁVEL. Recuperado em 13 de maio de 2023, de Por dentro do Aço – INDA.
[3] Sanchez, Euler & Pereira, Newton & Ribeiro, Natalia. (2017). Reciclagem de Navios e Embarcações: um mal necessário. October 2017. Conference: XXV Congresso Panamericano de Engenharia Naval. At: Panamá.
[4] JESUS, C. G. Contribuições para análise da tecnologia e do trabalho na indústria de construção naval brasileira. Revista Ciências do Trabalho, n. 9, p. 1997-2007, 2017.
[5] Assembleia Legislativa do Estado do Rio de Janeiro - ALERJ. (2023). ESTADO DO RIO PODE CONCEDER BENEFÍCIOS FISCAIS PARA ESTIMULAR ATIVIDADES DE RECICLAGEM DE EMBARCAÇÕES. Recuperado em 21 de maio de 2023, de https://www.alerj.rj.gov.br/Visualizar/Noticia/55709?AspxAutoDetectCookieSupport=1

SESSION: IronWedPM1-R2	Assis International Symposium (9th Intl. Symp. on Advanced Sustainable Iron & Steel Making)
Wed. 29 Nov. 2023 / Room: Dreams 2
Session Chairs: Marcos De Campos; Paulo Assis; Session Monitor: TBA

14:30: [IronWedPM106] OS
CIRCULARITY IN CIVIL CONSTRUCTION: ANALYSIS AND EVALUATION APPLIED TO EIGHT CASES IN THE STATE OF RIO DE JANEIRO
Nathalia Balzana Anacleto¹ ; Vinicius Netto² ; ¹Univ. Federal Fluminense, Niterói, Brazil; ²Programa de Pós-Graduação em Arquitetura e Urbanismo da Universidade Federal Fluminense - PPGAU-UFF, Niterói, Brazil;
Paper Id: 50 [Abstract]

The current economic development model in global society has been progressively contributing to environmental degradation. It was intensified after the Industrial Revolution and is based on the linearity of extraction, production and waste generation[1]. This problem is particularly felt in the construction industry, responsible for a significant percentage of waste. Responses to this process include the proposition of a circular production economic model, according to which products should be designed to be reused, remanufactured, refurbished, and recycled, serving as input for a new production process[2]. This paper explores circular economy [3] approaches focused on the construction process. It proposes to develop a method for analyzing circularity practices and processes for the sector. It seeks to identify stages of construction practices considering the possibility of transition from linear to circular systems. To this end, the research developed a system of indicators [4] [5] to evaluate practices in relation to circularity parameters explored in the literature. This indicator system was applied to eight cases of construction companies operating in the state of Rio de Janeiro, which were invited to participate in the research. The findings suggest indications of different stages in the industry's transition to circular production.

References:
[1] Associação Brasileira de Empresas de Limpeza Pública e Resíduos Especiais - ABRELPE. (2021). Panorama dos Resíduos Sólidos no Brasil 2021. Recuperado em 07 de janeiro de 2022, de Download Panorama 2021 – Abrelpe. [2] GONÇALVES, Daniel Bertoli. Desenvolvimento sustentável: o desafio da presente geração. Revista Espaço Acadêmico, ano V, n.51, agosto, 2005. [3] WEETMAN, Catherine. Economia Circular: Conceitos e estratégias para fazer negócios de forma mais inteligente, sustentável e lucrativa. Autêntica Business - 2019. [4] SILVA, Vanessa Gomes da. SILVA, Maristela Gomes da. AGOPYAN, Vahan. Avaliação de edifícios no Brasil: da avaliação ambiental para avaliação de sustentabilidade. Ambiente Construído, Porto Alegre, v. 3, n. 3, p. 7-18, jul./set. 2003 [5] SILVA, Vanessa Gomes da. Tecnologias para construção habitacional mais sustentável. Habitação mais Sustentável - Documento Metodologias de avaliação de desempenho ambiental de edifícios: estado atual e discussão metodológica. Projeto Finep 2386/04. São Paulo, 2007