https://repositorio.ifgoiano.edu.br/handle/prefix/1646 Sun, 23 Aug 2026 23:56:11 GMT 2026-08-23T23:56:11Z http://repositorio.ifgoiano.edu.br:80/retrieve/6110/Engenharia-Qumica.png https://repositorio.ifgoiano.edu.br/handle/prefix/1646 https://repositorio.ifgoiano.edu.br/handle/prefix/6894 Título: ANÁLISE EXERGÉTICA DA PRODUÇÃO DE BIODIESEL DE PRIMEIRA E SEGUNDA GERAÇÃO E DO APROVEITAMENTO DE RESÍDUOS SÓLIDOS AGROINDUSTRIAIS Autor(es): Melo, Eduane Tavares de Primeiro Orientador: Leão, Hugo Leonardo Souza Lara Primeiro Membro da Banca: Favareto, Rogério Abstract: This study aimed to analyze, through a systematic literature review, the application of exergy concepts and exergy analysis in the utilization of agro-industrial solid waste for the production of second-generation biodiesel, with emphasis on the evaluation of the thermodynamic performance and sustainability of the processes involved. The methodology adopted was based on a critical analysis of classic Thermodynamics textbooks and national and international scientific articles that address exergy, its components, performance indicators, and applications in bioenergy systems. The results showed that agro-industrial waste has a high chemical exergy content, frequently exceeding 90% of its energy content, which characterizes it as a strategic raw material for biofuel production. It was observed that the main exergy destructions occur in the pretreatment, lipid extraction, and biodiesel purification stages, due to irreversibilities associated with heat transfers, physicochemical separations, and chemical reactions far from equilibrium. Exergy analysis proved superior to conventional energy analysis by allowing the identification of real losses in useful work potential and by establishing direct relationships between efficiency, use of natural resources, and environmental impacts. It is concluded that exergy constitutes a consistent quantitative indicator of sustainability and an essential tool for evaluating and optimizing technological routes aimed at producing secondgeneration biodiesel from agro-industrial solid waste, contributing to the development of more efficient energy systems aligned with global energy transition goals. Keywords: Exergy; Second-generation biodiesel; Agro-industrial solid waste; Sustainability Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso Wed, 17 Jun 2026 00:00:00 GMT https://repositorio.ifgoiano.edu.br/handle/prefix/6894 2026-06-17T00:00:00Z https://repositorio.ifgoiano.edu.br/handle/prefix/6881 Título: CONTROLE DE QUALIDADE EM UMA INDÚSTRIA DE COSMÉTICOS CAPILARES: RELATO DE EXPERIÊNCIA EM ESTÁGIO SUPERVISIONADO Autor(es): Maciel, Vitor Gabriel Teles Primeiro Orientador: Favareto, Rogério Primeiro Membro da Banca: Viale, Wesley Renato Segundo Membro da Banca: Carvalho, Vicente Douglas Figueredo Abstract: The Personal Hygiene, Perfumery, and Cosmetics (HPPC) sector is among the most dynamic industrial segments in Brazil, characterized by constant product innovation and strict regulatory requirements imposed by health authorities. In this context, quality control plays a strategic role in ensuring the safety, efficacy, and compliance of marketed hair cosmetics products. This work aims to describe and discuss the activities developed in the Quality Control sector of a hair cosmetics industry, relating the observed practices to the technical and regulatory foundations that guide the quality management system in the Personal Hygiene, Perfumery and Cosmetics sector. This is an experience report based on a supervised internship, structured from the practical experience of the sector's analytical, documentary and operational routines. The activities encompassed environmental monitoring and analytical equipment calibration, physical-chemical and organoleptic analyses (including the determination of pH, viscosity, density, appearance, color and odor), microbiological analyses of finished products, raw materials, potable water and production equipment, daily physical-chemical monitoring of supply water, incoming control of raw materials and packaging, document management, and solid and biological waste management. Activities observed in other areas of the production sector were also described, including batch manipulation in mixing reactors, filling, labeling, coding and dispatch of finished products. The practices described were analyzed in light of Resolution RDC No. 48/2013, which establishes Good Manufacturing Practices for the sector, RDC No. 907/2024, which consolidates the regularization of products and microbiological control parameters, and Ordinance GM/MS No. 888/2021, which defines water potability standards. The results showed that quality control constitutes an integrated and transversal system that permeates all stages of the production process, with documentation and traceability being central elements for regulatory compliance and the safety of the final product. It is concluded that the experience provided a comprehensive and well-founded understanding of the practices that support quality in the hair cosmetics industry, demonstrating the relevance of the chemical engineer's role in the context of industrial quality control. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso Fri, 07 Aug 2026 00:00:00 GMT https://repositorio.ifgoiano.edu.br/handle/prefix/6881 2026-08-07T00:00:00Z https://repositorio.ifgoiano.edu.br/handle/prefix/6872 Título: CARACTERIZAÇÃO FÍSICO-QUÍMICA E POTENCIAL DE APROVEITAMENTO ENERGÉTICO DE LODO REMOVIDO DE LAGOAS DE ESTABILIZAÇÃO E DESAGUADO EM CONTÊINERES GEOTÊXTEIS Autor(es): Marques, Gabrielly Silva Primeiro Orientador: Couto, Bruno de Oliveira Costa Primeiro Membro da Banca: Ferreira, Karen Carvalho Segundo Membro da Banca: Favareto, Rogério Terceiro Membro da Banca: Sousa, ísis Danielle Abstract: Facultative ponds are widely used for domestic wastewater treatment due to their operational simplicity and low cost. However, sludge accumulation in these systems requires proper management because of its environmental impacts and energy recovery potential. In this context, this study aimed to evaluate the physicochemical characteristics of sludge removed from facultative ponds at the SAPO Wastewater Treatment Plant (WWTP), located in Rio Verde, Goiás, Brazil, in order to assess its potential for biogas production. The sludge was subjected to dredging, dewatering, and storage in geotextile containers, and the following parameters were analyzed: total solids (TS), volatile solids (VS), VS/TS ratio, pH, dissolved oxygen (DO), electrical conductivity, and chemical oxygen demand (COD). The results demonstrated variations associated with dewatering, storage conditions, and vertical heterogeneity of the material. The highest VS contents and VS/TS ratios were observed in samples collected from the container corresponding to the initial dredging stage, indicating a greater presence of biodegradable organic matter and higher potential for biogas production. Although no statistically significant differences were observed among the evaluated containers, descriptive results indicated a tendency toward segregation of the organic fraction. Overall, the results suggest that the analyzed sludge presents potential for energy recovery through anaerobic digestion. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso Thu, 02 Jul 2026 00:00:00 GMT https://repositorio.ifgoiano.edu.br/handle/prefix/6872 2026-07-02T00:00:00Z https://repositorio.ifgoiano.edu.br/handle/prefix/6866 Título: MICROCANAIS BIOINSPIRADOS OTIMIZADOS PELO ALGORITMO SLIME MOLD APLICADOS À DISTRIBUIÇÃO DE REAGENTES EM CÉLULAS A COMBUSTÍVEL DO TIPO PEM Autor(es): Andrade, Santyago Ferreira Primeiro Orientador: Leão, Hugo Leonardo Souza Lara Primeiro Membro da Banca: Leão, Hugo Leonardo Souza Lara Segundo Membro da Banca: Favareto, Rogério Terceiro Membro da Banca: Barbosa Junior, João Areis Ferreira Abstract: The performance of proton exchange membrane fuel cells (PEMFCs) depends on how efficiently the reactants are distributed along the channels of the bipolar plates, since poor gas distribution produces regions of low renewal, mass transport losses and increased pressure drop. This work evaluated, through computational fluid dynamics (CFD), a bioinspired microchannel geometry based on pulmonary branching and optimized by an algorithm inspired by the behavior of Physarum polycephalum, known as Slime Mold, comparing it with a conventional parallel channel geometry. The geometries were generated in Python, adjusted in CAD software, exported as STL files at the millimeter scale, discretized in OpenFOAM with blockMesh and snappyHexMesh, and simulated with the simpleFoam solver, considering single-phase, incompressible and isothermal air flow. Six cases were studied, combining the two geometries with three operating conditions: a flow rate of 2 𝐿 ⋅ 𝑚𝑖𝑛−1(realistic condition), a flow rate of 5 𝐿 ⋅ 𝑚𝑖𝑛−1 (high-flow condition) and a pressure difference from 200 kPa to 100 kPa (pressure sensitivity analysis). Under the realistic condition, the bioinspired geometry presented a pressure drop of 1.198 kPa against 0.639 kPa for the conventional geometry, both in laminar regime (Re ≈ 1586 and 1599). Under the high-flow condition, the pressure drops were 5.696 kPa and 3.078 kPa, respectively. Under elevated pressure, the conventional geometry carried 158.70 𝑚3 ⋅ 𝑠−1 against 135.43 𝑚3 ⋅ 𝑠−1for the bioinspired one. The conventional geometry therefore presented lower hydraulic resistance under all evaluated conditions, while the bioinspired geometry demonstrated the methodological feasibility of generation, discretization and simulation, but still requires smoothing of the bifurcations, channel resizing and hydraulic equalization of the flow paths. It should be emphasized that the comparison is strictly hydraulic, without a gas diffusion layer, liquid water or electrochemical coupling, so the results do not represent the complete electrochemical performance of a PEMFC. Editor: Instituto Federal Goiano Tipo: Trabalho de Conclusão de Curso Wed, 01 Jul 2026 00:00:00 GMT https://repositorio.ifgoiano.edu.br/handle/prefix/6866 2026-07-01T00:00:00Z