https://tede.unioeste.br/handle/tede/507 Thu, 30 Jul 2026 20:44:31 GMT 2026-07-30T20:44:31Z https://tede.unioeste.br/handle/tede/8571 Title: Sustem Hidropônico em Desenvolvimento de Alface com Suplementação de LED Vermelho e Azul. Autor: Santos, Raynne Raphaela Rodrigues Primeiro orientador: Siqueira, Jair Antonio Cruz Abstract: The objective of the study was to analyze the growth of lettuce in a hydroponic system, supplemented with red and blue LEDs, under partially controlled climatic conditions. The goal is to obtain results indicating that the use of red and blue light leads to greater efficiency in production, surpassing the growth of lettuce without supplemental lighting. Seedlings were first grown in a nursery for a few days and then transferred to an NFT (Nutrient Film Technique) hydroponic system. The plnts were exposed to natural light, with and without supplemental LED Grow lighting, for 32 days. At the end of this period, several parameters were evaluated: number of leaves (NF), root length (CR), STEM LENGTH (CC), stem diameter (DCA), fresh root mass (MVP), fresh root mass (MVR), fresh stem mass (MVC), dry shoot mass (MSP), dry root mass (MSR), and dry stem mass (MSC). The experiment considered climatic variations into account. Smooth-lettuce stood out for having a higher number of leaves and fresh mass, regardless of the lighting source. Curly lettuce showed better root development under natural light. It is concluded that artificial light is a viable alternative; however, natural light may be more efficient for sensitive cultivars. Publisher: Universidade Estadual do Oeste do Paraná Tipo do documento: Dissertação Mon, 23 Feb 2026 00:00:00 GMT https://tede.unioeste.br/handle/tede/8571 2026-02-23T00:00:00Z https://tede.unioeste.br/handle/tede/8568 Title: Desenvolvimento, avaliação técnica e econômica de uma roda d’água flutuante para bombeamento de água. Autor: Rotta, Marcelo Paiva Primeiro orientador: Nogueira, Carlos Eduardo Camargo Abstract: Access to water for irrigation and agricultural activities in remote rural areas often depends on alternative energy solutions, especially in locations without connection to the electric power grid. This study presents the development and experimental investigation of a water pumping system driven by a floating water wheel, designed to operate exclusively through the hydrokinetic energy of a natural watercourse. The system was constructed, installed, and tested along a stretch of the Tormenta River, in the municipality of Catanduvas, in the state of Paraná, Brazil, where measurements of pumped flow rate, manometric head, torque, rotational speed, and current velocity were performed. Based on the experimental data, hydraulic power, mechanical power, and pumping power were determined, as well as the hydraulic, mechanical, and overall efficiencies of the system. The prototype operated continuously, despite the intermittent behavior characteristic of the Wirtz pump, and achieved a maximum hydraulic efficiency of 72%. The maximum mechanical and overall efficiencies were 7.94% and 5.71%, respectively. The pumped flow rates proved to be compatible with the water demands of small family farms. The economic analysis indicated the system’s feasibility, with an implementation cost of R$ 2,500.00. Compared with the avoided cost of conventional water supply, the system presented a discounted payback period shorter than the estimated service life of the equipment and a levelized energy cost of R$ 1.00 per m³ of pumped water. The results demonstrate that floating water wheels constitute a sustainable, low-cost, and technically feasible solution for isolated rural communities. Publisher: Universidade Estadual do Oeste do Paraná Tipo do documento: Dissertação Mon, 02 Mar 2026 00:00:00 GMT https://tede.unioeste.br/handle/tede/8568 2026-03-02T00:00:00Z https://tede.unioeste.br/handle/tede/8567 Title: Aproveitamento de Resíduos de Poda Urbana para produção de Biocombustível Sólido integrando Biomassa Sustentável. Autor: Fornazari, Maevi Primeiro orientador: Bariccatti, Reinaldo Aparecido Abstract: The energy crisis is a reality, and the problems arising from it are intensifying every day due to uncontrolled population growth and degrading anthropogenic actions. Therefore, it is essential to search for alternative energy sources to meet global energy needs without compromising future generations. Microalgae are photosynthetic organisms, and their biomass is attractive for energy generation because it is composed of macromolecules with a binding effect. The microalgae species Chlorella vulgaris Benj. can be cultivated in aquaculture wastewater, as it develops by absorbing nutrients from the effluent. The improper disposal of urban pruning waste (RPU), organic material that takes a long time to degrade, is also an environmental challenge that requires attention, with the use of this waste for energy being a sustainable alternative. In floodplain areas, it is possible to observe the massive growth of the aquatic macrophyte Typha domingensis (cattail), a plant that can become invasive and harm the development of other living beings, reducing the biodiversity of the environment. Cattail has an interesting chemical composition and can be used to generate energy in the form of briquettes. In this context, this study sought to produce briquettes from the integration of Chlorella vulgaris, Typha domingensis, and Urban Pruning Waste (UPW) biomass, with subsequent evaluation of the energy and binding potential of each biomass. The experiments were conducted under laboratory conditions. The microalgae were cultivated in aquaculture wastewater and the briquettes were made in a handmade press, without the application of heat. The results obtained were satisfactory, especially with briquettes produced from the integration of biomass (80% RPU + 10% C. vulgaris + Typha domingensis), which presented maximum breaking force (139,80 N), mechanical resistance (1.14 MPa), and higher calorific value (17.179 MJ/kg). The data therefore suggest that the inclusion of organic and natural biomass, especially in an integrated form, is extremely viable in the production of briquettes, resulting in competitive products that represent a sustainable alternative to conventional products of food or chemical origin. Publisher: Universidade Estadual do Oeste do Paraná Tipo do documento: Dissertação Tue, 10 Mar 2026 00:00:00 GMT https://tede.unioeste.br/handle/tede/8567 2026-03-10T00:00:00Z https://tede.unioeste.br/handle/tede/8562 Title: Desenvolvimento e avaliação de um equipamento eletrônico para monitorar odor no contexto de Cidades Inteligentes Autor: Xavier, Felipe Natã de Camargo Primeiro orientador: Camargo, Edson Tavares de Abstract: The increasing urbanization and the expansion of industrial and agro-industrial activities have intensified problems related to odor emissions and air quality degradation. The monitoring and identification of these pollutants remain challenging due to the cost of reference equipment and the limited availability of technologies for environmental regulation and control. In this context, this work presents the development and evaluation of an electronic system for odor monitoring and identification. The proposed system consists of a low-cost sensor array, including electrochemical sensors and a Photo Ionization Detector (PID), capable of detecting relevant odorant gases such as hydrogen sulfide (H2S), ammonia (NH3), sulfur dioxide (SO2), methanethiol (CH3SH), and volatile organic compounds (VOC). The device integrates an embedded system responsible for data acquisition, preprocessing, and storage, as well as remote data transmission using the LoRaWANprotocol. The experimental methodology included laboratory tests to evaluate the influence of temperature and humidity on sensor response, odor sample tests for odor profile analysis, experiments with known concentrations of H2S, and field campaigns in different scenarios, including composting environments, urban areas, and a dairy cattle barn. Additionally, the influence of the sampling regime (active and passive flow) was evaluated, highlighting the impact of the air intake system on sensor response dynamics. The results demonstrated that the system is capable of indicatively distinguishing odor profiles. The application of machine learning techniques, such as Kernel PCA and Random Forest, enabled pattern recognition, reinforcing the multivariate analysis approach typical of electronic noses. As an additional contribution, representative datasets of different odor emission scenarios were generated, including an urban dataset in the city of Toledo and an agricultural dataset in a dairy cattle environment. The results indicate that systems based on low-cost sensors, integrated with machine learning techniques and IoT infrastructure, represent a promising alternative for environmental monitoring and odor identification, particularly in distributed applications within the context of smart cities. Publisher: Universidade Estadual do Oeste do Paraná Tipo do documento: Dissertação Tue, 28 Apr 2026 00:00:00 GMT https://tede.unioeste.br/handle/tede/8562 2026-04-28T00:00:00Z