https://repositorio.ufu.br/handle/123456789/19618 Wed, 07 Oct 2026 12:50:12 GMT 2026-10-07T12:50:12Z https://repositorio.ufu.br/handle/123456789/50456 Title: {Desenvolvimento e análise de estratégias de controle utilizando um dispositivo de controle de temperatura e a plataforma OpenPLC Abstract: Automation and control of industrial processes are fundamental to improving operational efficiency and safety. In this context, Programmable Logic Controllers are essential for achieving effective control. However, their high cost and complexity can limit their use in academic and educational environments, which makes it necessary to seek more affordable alternatives for the simulation and practical teaching of process control. Thus, this paper aims to develop a small-scale plant using the Arduino Uno microcontroller as a Programmable Logic Controller for the implementation and analysis of temperature control strategies, in order to provide a low-cost alternative that simulates industrial control as closely as possible. To this objective, the open-source OpenPLC software was employed for configuring the controller in Ladder Logic and for communication between components via the Modbus TCP/IP protocol. Additionally, the Python programming language was used for system programming, monitoring, and supervision. In the study, two control approaches for the MIMO system were implemented and compared: the classical Proportional-Integral-Derivative (PID) technique with tunings made using the IMC and ITAE methods and the advanced Model Predictive Control (MPC) technique. The results demonstrated that both techniques performed well in tracking setpoints. The PID tuned with the ITAE method stood out for its faster and more aggressive response, while the IMC tuning resulted in smoother responses with less overshoot. On the other hand, MPC control proved to be an option with a smoother and consistent responses and good adherence to the mathematical model used, with the simulation contributing to the tuning of this type of control. Thus, integrating the experimental apparatus, OpenPLC software and Python proved to be an accessible and versatile educational tool, which brings the system closer to an industrial environment suitable for practical teaching of industrial process control. Fri, 22 Nov 2024 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/50456 2024-11-22T00:00:00Z https://repositorio.ufu.br/handle/123456789/50455 Title: Otimização energética em planta de metanol e gás de síntese a partir dos resíduos de tamareira pela metodologia pinch Mon, 16 Dec 2024 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/50455 2024-12-16T00:00:00Z https://repositorio.ufu.br/handle/123456789/50442 Title: A ciência das fragrâncias na produção de perfumes: uma revisão bibliográfica sobre composição, fabricação e mercado Abstract: Fragrances and perfumes have been fundamental elements shaping human experience throughout history, transcending borders and influencing global trade. Given their economic and cultural relevance, there arises a need to study this subject in greater depth. Thus, this undergraduate thesis presented a comprehensive overview of the science of fragrances within the context of perfume production, with emphasis on the chemical and industrial processes involved. Key topics were addressed, such as formulation and chemical composition, extraction methods, perfume manufacturing, industry innovations, and the current market landscape of this sector. The methodology adopted consisted of theoretical and bibliographic research, based on relevant academic sources, including theses, articles, and dissertations published in the last 15 years, as well as classic books on the subject, available in online databases. It was concluded that perfumery represents an interdisciplinary field in which science, technology, and art converge, requiring the integration of knowledge from chemistry, engineering, and process. Furthermore, the growing importance of sustainability, biotechnology, and technological innovation was observed as drivers of transformation in the sector, as well as the central role of the chemical engineer in optimizing processes and developing safer and more efficient solutions for perfume production. In this regard, this work contributed to building a deeper academic understanding of perfume production, serving as a knowledge base for professionals interested in the chemical and industrial aspects of this market. Wed, 24 Sep 2025 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/50442 2025-09-24T00:00:00Z https://repositorio.ufu.br/handle/123456789/50415 Title: Estimativa teórica da eficiência de ciclones clássicos para a separação de catalisadores em processos de Craqueamento Catalítico Thu, 30 Jul 2026 00:00:00 GMT https://repositorio.ufu.br/handle/123456789/50415 2026-07-30T00:00:00Z