A5091296155- Thermodynamic and Exergetic Analyses of Power and Cooling Systems
- Solar Thermal and Photovoltaic Systems
- Heat Transfer and Optimization
- Adsorption and Cooling Systems
- Refrigeration and Air Conditioning Technologies
- Solar-Powered Water Purification Methods
- Thermal Radiation and Cooling Technologies
- Biodiesel Production and Applications
- Additive Manufacturing and 3D Printing Technologies
- Building Energy and Comfort Optimization
- Innovative Microfluidic and Catalytic Techniques Innovation
- Education and Digital Technologies
- Agricultural and Food Sciences
- Vehicle emissions and performance
- Advanced Combustion Engine Technologies
- Ultrasound and Cavitation Phenomena
- Machine Fault Diagnosis Techniques
- Water Treatment and Disinfection
- Urban Arborization and Environmental Studies
- Heat Transfer and Boiling Studies
- Coal Combustion and Slurry Processing
- Energy and Environment Impacts
- Aerosol Filtration and Electrostatic Precipitation
- Assistive Technology in Communication and Mobility
- Orthodontics and Dentofacial Orthopedics
Universidade Federal de Pernambuco
2018-2025
Instituto Federal de Educação, Ciência e Tecnologia de Pernambuco
2017-2025
Hospital de Egas Moniz
2024
Fundação de Apoio a Pesquisa do Estado de Goiás
2018
Universitat de Barcelona
2013
The interest in employing absorption refrigeration systems is usually related to electricity’s precariousness since these generally use thermal rejects for their activation. application of closely linked the concept energy polygeneration, which demand operate them reduced, represents main advantage over conventional vapor compression system. Currently, solution pairs used commercial chillers are lithium bromide/water and ammonia/water. latter pair has been air conditioning industrial...
The prognosis of wind turbine failures in real operating conditions is a significant gap the academic literature and essential for achieving viable performance parameters operation maintenance these machines, especially those located offshore. This paper presents framework estimating remaining useful life (RUL) main bearing using regression models fed operational data (temperature, speed, active power network) collected by supervisory control acquisition (SCADA) system. begins with careful...
This article critically reviews advances and numerical modeling in absorbers desorbers used absorption refrigeration systems, emphasizing the applications, limitations, future perspectives of computational fluid dynamics (CFD). study’s main contribution lies detailed critical analysis use CFD physical models generators chillers. In addition, several heat exchanger technologies, such as falling film, membranes, bubbling, are addressed, highlighting CFD-based studies’ findings challenges. The...
This work aims to study the dynamic aspects related mechanical vibrations, focusing on vibrational analysis and harmonics concerning safety maximum efforts supported by operators working with equipment. The main goal is determination of resonance displacements, accelerations at workstation a crane operator. A modal harmonic was performed using finite element method ANSYS software 2022 R1. findings indicated that primary vibration modes impacting operator’s well-being occurred 1, 2, 8 Hz,...
This study seeks to investigate the heat dissipation process in a minichannel exchanger, commonly employed for cooling electronic components. The analysis centers on two key factors: global thermal resistance (GTR) and transfer coefficient. innovation of this resides development mini exchanger optimized using chemometric methods achieve efficient dissipation. Various conditions, including power source, volumetric flow rate, ambient temperature, were varied at both low high levels assess...
Abstract This research presents a point‐of‐use (POU) water treatment technology utilizing metal/metallic surfaces based on Triply Periodic Minimal Surface (TPMS) structured filtration infills. Computational Fluid Dynamics modeling using Ansys CFX software is employed to analyze the behavior of Escherichia coli bacteria within continuous liquid phase moving through infill, assess particle collision dynamics, and evaluate efficiency filtration, considering pressure drop as fundamental factor...
This study aimed to analyze and optimize the thermal induction hardening process applied toothed transmission gears, focusing on aspects, structural deformation, topology optimization, while exploring feasibility of various materials operating conditions. The research simulated deformation behavior using a computer model, comparing results with experimental data through Ansys® platform 2022 R1. methodology encompassed analyses, optimization identify removable regions without compromising...
This work presents a quasi-dynamic approach to an absorption refrigeration system that uses NH3/LiNO3 as the working fluid. The goal is linked development and validation of mathematical model, based on characteristic equation method, simulate behavior chillers. model was developed using first law thermodynamics through conservation mass energy integration considering external parameters such temperatures flow rates hot, cold, chilled water circuits global heat transfer coefficients....
This study investigates and compares the experimental heat transfer performance simulation via computational fluid dynamics (CFD) of graphene nanoplatelets (GNP) water nanofluids GNP/water in double-tube-type exchanger (DTHE). Tests were conducted with water/water fluids, nanofluid for hot-fluid circuit cold-fluid circuit, counterflow direction, varying concentrations by weight (wt%) at 0.0125%, 0.025%, 0.050%, operating temperature 50 60 °C, Reynolds numbers between 2000–6000. The results...
<p class="Normal1"><span>Os sistemas de cogeração energia apresentam o potencial necessário à exploração racional dos recursos energéticos, vantagens econômicas e ambientais, segundo vários níveis complexidade. Este artigo mostra a análise energética um sistema composto por grupo gerador, acionado gás natural, <em>chiller</em> absorção simples efeito operando com LiBr/H2O, trocador calor uma torre resfriamento. A modelagem termodinâmica foi desenvolvida na plataforma...