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331 results on '"Maciel Filho, Rubens"'

1. Predicting mortality of cancer patients using artificial intelligence, patient data and blood tests

Author

Martins, Tiago D., Maciel-Filho, Rubens, Montalvão, Silmara A. L., Gois, Gabriele S. S., Al Bannoud, Mohamad, Ottaiano, Gabriel Y., Anhaia, Thaizy R. A., Almeida, Millene E. A., Ferreira, Monique R. M., Martinelli, Beatriz M., Fernandes, Maria C. G. L., Huber, Stephany C., Ribeiro, Daniel, Teixeira, Júlio C., Carvalheira, José B. C., Lima, Carmen S. P., Andreollo, Nelson A., Etchebehere, Maurício, Zambon, Lair, Ferreira, Ubirajara, Tincani, Alfio J., Martins, Antônio S., Coy, Cláudio S. R., Seabra, José C. T., Mussi, Ricardo K., Tedeschi, Helder, and Anninchino-Bizzacchi, Joyce M.

Published
2024
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6. Chemical Engineering Teaching in COVID-19 Times: Successfully Adapting a Capstone Design Course to a Remote Format

Author

Khouri, Nadia G., Fontana, Michelli, Dias, Igor L. R., Maciel, Maria R. W., Maciel Filho, Rubens, and Mariano, Adriano P.

Abstract

The coronavirus COVID-19 pandemic required educational institutions to adapt face-to-face to remote teaching. This study reports the experience in the first semester of 2020 for a Chemical Engineering Capstone Design Course at the University of Campinas in Brazil. In this course, senior year students develop a group project, in which they simulate a chemical plant and evaluate its technoeconomic feasibility. In 2020, the groups were proposed to design a process to replace diesel fuel from the bus fleet in Campinas city with renewable fuel DME. Because of the pandemic, several adaptations were needed: the theoretical classes became asynchronous, group meetings were online, a commercial simulator was replaced by an open access one, and the schedule was extended by 2 weeks. Despite that, the students had a great performance, comparable to face-to-face. To assess student satisfaction, a questionnaire was used. The course met the expectations of most of the students who also recommended keeping it in the remote format or merging it with face-to-face teaching. Therefore, these changes made it possible to apply new teaching dynamics and tools that could be used in the future to improve the course quality.

Published
2021
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8. A competency-based chemical engineering curriculum at the University of Campinas in Brazil

Author

Franco, Luís Fernando Mercier, da Costa, Aline Carvalho, de Almeida Neto, Ambrósio Florêncio, Moraes, Ângela Maria, Tambourgi, Elias Basile, Miranda, Everson Alves, de Castilho, Guilherme José, Doubek, Gustavo, Dangelo, José Vicente Hallak, Fregolente, Leonardo Vasconcelos, Lona, Liliane Maria Ferrareso, de La Torre, Lucimara Gaziola, Alvarez, Luz Adriana, da Costa, Mariana Conceição, Martinez, Patricia Fazzio Martins, Ceriani, Roberta, Zemp, Roger Josef, Vieira, Roniérik Pioli, Maciel Filho, Rubens, Vianna, Sávio Souza Venâncio, Bueno, Sonia Maria Alves, Vieira, Melissa Gurgel Adeodato, and Suppino, Raphael Soeiro

Published
2023
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50. Environmental Assessment of Liquid Hydrogen Production Routes.

Author

Silva Ortiz, Pablo, Jia-Wei Lin, Pinto Mariano, Adriano, Maciel Filho, Rubens, and Jocher, Agnes

Subjects
HYDROGEN production, STEAM reforming, ELECTROLYSIS, GREENHOUSE gas mitigation, RENEWABLE energy sources
Abstract

Recently, hydrogen has been explored as an aviation energy carrier to support various critical energy challenges for the upcoming decades. Thus, conventional and non-conventional hydrogen production methods have been developed worldwide. This paper investigates Steam Methane Reforming (SMR) and Alkaline Electrolysis (AWE) hydrogen production as primary processes from an energy requirement and life cycle perspective. Besides, It also considers hydrogen liquefaction for aviation use. In this context, an attributional, Cradle-to-Gate life cycle assessment was carried out to compare the environmental impact of SMR and AWE hydrogen production processes under four German energy mix scenarios. The assessment method selected was ReCiPe 2016, and the main impact categories were climate change and acidification potential. The results show that greenhouse gas emissions from each production method highly depend on energy sources. The CO2 emissions from SMR and AWE processes in a base case scenario are 12 and 51 kgCO2eq/kgH2, respectively, and these values decrease to 7 (SMR) and 22 kgCO2eq./kgH2 (AWE) in a 2050 renewable energy scenario. Concerning the energy requirements, each process requires different energy amounts to produce 1 kgH2 (functional unit). SMR requires 11.3 kWh, AWE 61.8 kWh, and hydrogen liquefaction 5.1 kWh. In brief, hydrogen is widely promoted as an alternative energy carrier in Germany; however, depending on the production process and technical considerations, further studies are required to support and explore its applications. [ABSTRACT FROM AUTHOR]

Published
2024
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