TCC - Engenharia Florestal (Sede)
URI permanente para esta coleçãohttps://arandu.ufrpe.br/handle/123456789/436
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Item Rendmax, software para cálculo e análise de volume e rendimento máximo em madeira serrada(2024-03-05) Coelho, Gustavo Andrade; Nogueira, Marcelo; http://lattes.cnpq.br/2791448000405507; http://lattes.cnpq.br/3210826106891832A sawmill is a location where logs of wood are received, stored, processed, and subsequently dried for a specific period. Sawmills are commonly classified based on their daily production, that is, their yield, categorizing them into small, medium, and large scale. Various factors influence this yield, and in the absence of proper control or monitoring, there is a tendency for production losses. As an alternative, sawmill automation emerges as a viable solution, especially through the utilization of information technology. This involves implementing optimization systems for cutting calculations, which can be developed using progxanumng languages such as HTML, CSS, and JavaScript. In this context, the aim of this work was to develop software for optimizing the sawing of wood logs to achieve maximum volume and yield in wood utilization. In developing the mathematical models used to estimate the volume and maximum yield of sawn wood from a log, as well as the corresponding software, four predefined scenarios commonly used in sawmills were considered. In each of these scenarios, calculations were manually performed using the same values employed in the program tests, with the goal of verifying the software's proper functioning in each established scenario. Subsequently, following the calculation methodology, software was developed to optimize the process of converting wood logs into mechanically processed pieces. This software was built using programming languages JavaScript, HTML, and CSS. HTML was used to structure the website. while CSS was responsible for the design, colors, shadows, size, and positioning of elements. JavaScript was responsible for the software's source code, that is, the program's interactivity, including input requests, variable creation, internal calculations, interactions, interactive menus, animations, and validations. By combining these three languages, it became feasible to automate the data acquisition process following the same empirical reasoning, based on equations. However, in this case, with an approach carried out through the creation of codes and commands using programming languages. This enables achieving the desired result, maximizing log utilization according to the scenario, demonstrating its effective applicability in the market.Item Carbonização e análise imediata do carvão vegetal da madeira de Mimosa caesalpiniaefolia Benth e Cupania racemose (Vell.) Radlk(2018-03-01) Gonçalves, Caio Pedro da Silveira; Nogueira, Marcelo; http://lattes.cnpq.br/2791448000405507This paper had the objective of determining the gravimetric yield of the carbonization of Mimosa caesalpiniaefolia and Cupania racemose for charcoal characterization of the wood of these species and indicate the most viable for use as fuel. For the study, six individuals from Mimosa caesalpiniaefolia Benth and six from Cupania Racemosa (Vell.) Radlk were collected at the Pedra Bonita site in Chã-grande, PE, Brazil. The individuals were sectioned in disks along the shaft and later, chips of dimensions 49 x 20 x 4 mm were made along the trunk. The chips were homogenized, comminuted, quarteted and transported to the Forest Technology Laboratory of the Federal Rural University of Pernambuco. Each carbonization was conducted in a total time of 210 minutes at a maximum temperature of 460 ± 10 ° C in a temperature-controlled muffle type oven, rate of 1.4 °C/min after the first hour. NBR 8112/1986 was used, which prescribes the method for the immediate analysis of charcoal. In addition to the NBR, the immediate analysis was conducted according to an adaptation from CETEC (1982) to ASTM (American Society for Testing and Materials) standards. The basic density found for Mimosa caesalpiniaefolia and Cupania racemose was, respectively, 0.87 and 0.83 g / cm 3. The values of ash, volatile matter content, fixed carbon and gravimetric yield for the Sabiá were 1.74%, 46.89%, 44.49% and 44.34%, respectively; and for the Cabotã was 0.25%, 55.26%, 51.36% and 44.12%, respectively. Therefore, both the charcoal coming from Mimosa caesalpiniaefolia and from Cupania racemos have satisfactory characteristics for energy purposes. However, in comparison among the species studied, Cupania racemosa is the most suitable for use as fuel.