Recent Submissions
The Mining industry in Brazil is a relevant sector for the country's economic development due to its diverse applications, featuring a large consumer of electrical and thermal energy. Among the equipment present in production processes, ovens are considered the largest energy consuming units, so their thermal efficiency plays a crucial role in energy savings for companies. The proposed work aims to analyze the energy benefits of incorporating heat recovery and air preheating in an i...
This project aims at environmental regularization for the construction of a cement factory in the Aratu Industrial Complex - BA, by obtaining its installation license from the Institute of Environment and Water Resources (Inema). Without environmental licensing the company is unable to build the cement factory and also to continue with its activities. It is necessary for the company to have full environmental regularity and to obtain a license, so that the company does not suffer pe...
Surfactants are employed in various sectors, ranging from domestic to industrial appli cations. Their surface tension reduction properties make them widely used in cleans ers, cosmetics, food, agrochemicals, petroleum, and pharmaceuticals. Synthetic sur factants, extensively utilized for their cleaning efficiency and versatility, are predomi nantly derived from petroleum. In contrast, biosurfactants, exemplified by surfactin in this thesis, constitute a variety of surface-active agents obta...
In the context of climate change and its effects on extreme weather events, the prediction and monitoring of lightning strikes are crucial, especially in regions prone to such events. In this context, this study aims to develop and evaluate deep learning models to predict lightning strikes up to 6 hours in advance, using globally available meteorological data from the Global Data Assimilation System (GDAS) as input, and lightning occurrence data provided by the Atmospheric Electricity Gr...
The indiscriminate use of pesticides leads to a reduction in natural enemies in the agroecosystem, causing a serious ecological imbalance that encourages increased doses and the number of applications throughout the production cycle, as well as directly affecting human health. In this context, this study aims to conduct a scientific mapping of the impacts of the indiscriminate use of pesticides in the agroecosystem, particularly in the reduction of natural enemies. Additionally, a t...
The objective of this article is to analyze the results obtained from the implementation of the Kaizen and Lean tool to improve maintenance management, in view of the need for a method of planning and controlling maintenance due to the premise of guaranteeing the availability of equipment function. To carry out the research, the following method was used: Systematic Observation Method, in which the procedures applied to the maintenance process was observed, analyzed and monitored as...
The use of polymer materials manufactured through Additive Manufacturing (AM) in the oil and gas sector is sparking growing interest due to its potential advantages and innovative applications. Among the polymers used in AM, polyamide 12 (PA12) stands out due to its mechanical properties and wide range of melting and crystallization temperatures. However, studies on the application of PA12 in subsea technologies within the oil and gas sector are still limited, making it relevant to ...
Reliability studies in the Brazilian pre-salt oil production environment have shown promise, as seen in surveys carried out between 2017 and 2023 on the platforms MaintWorld, Machinery and Equipment MRO, Science Direct, Google Academic and CAPES, mainly for the determination of frequency of occurrence of failure events, obsolescence of data and their behavior over time is one of the concerns in the context of current engineering. This dissertation discusses a survey of equipment rel...
Focus on renewable energy, as well as energy generating systems efficiency, has grown with the increasing planet´s energy demand and the predicted limitation on energy resources over the years. A good viable alternative to more efficient and clean energy production, given the environmental concerns, is utilizing a polygeneration system integrating multiple forms of energy storage and production combined. The studies on polygeneration grow as the years go by and hospital units have p...
Project management understands complex processes that involve a variety of material and human resources and multidisciplinary activities. The research takes place through a case study carried out in a capital-intensive company, aiming to identify deadline deviations, and to understand the relationship between the application of best practices and assertiveness in the implementation. This work proposes the interaction between processes and management methods for project implementatio...