Mechanical Engineering: Envíos recientes
Mostrando ítems 21-40 de 46
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Parallel Plates Internal Heat Transfer Analysis for Electronic Cooling
(Polytechnic University of Puerto Rico, 2013)Two-dimensional heat transfer analysis using the Integral Equation Method between a series of parallel plates with uniform surface heating to determine the Temperature Distribution as a Thermal Model for a Supercomputer ... -
Surface Response Modeling for Rotor-Dynamics Systems
(Polytechnic University of Puerto Rico, 2014)This paper presents the way to generate an equation that does not exist, to analyze different rotor-dynamics system. With the analysis and design software, the results desired were obtained in order to be able to create ... -
Stirling Engine Mechanism Analysis as a Function of Internal Pressure Variation
(Polytechnic University of Puerto Rico, 2014)The Stirling heat engine was conceived in the in the early 1800's as an alternative to the steam engine. It is a regenerative close-cycle engine which utilizes the expansion and contraction of a working fluid at different ... -
3D Vibration Isolation Systems Modeling for Air Handling Units
(Polytechnic University of Puerto Rico, 2014)Spring isolators systems are commonly used in a variety of ways in today’s construction industry. They are an essential part of the design of many mechanical systems that are in need of absorbing and dissipating unwanted ... -
Aircraft Wing Spanwise Air-Load Distribution using MATLAB
(Polytechnic University of Puerto Rico, 2014)Aircraft design is a complex task that involves the interaction between aerodynamics, propulsion, flight mechanics and structures. In particular, the structural design tasks involve the consideration of a significant ... -
Airfoil Design Using Blade Element Momentum Theory
(Polytechnic University of Puerto Rico, 2015)A wind turbine is a device designed to extract kinetic energy from the wind and convert it to mechanical energy, which in turn can be equivalent to electric power. On this work we will focus on the aerodynamics of wind ... -
CFD Study to Analyze the Behavior of Secondary Flow Using Fillets
(Polytechnic University of Puerto Rico, 2015)Secondary flow are a series of vortex created at the leading edge of the blade. These vortexes decrease the efficiency of the turbine by creating a non-uniform flow which will pass to successive blade stages. The ... -
A Quadcopter Test Bed for Academic and Research on Control Systems Design
(Polytechnic University of Puerto Rico, 2015)This article presents the development of a quadcopter platform to be used for future academic and research studies in control systems in the Mechanical Engineering Department at the Polytechnic University of Puerto ... -
Central Water-Cooled Chill Water Plant
(Polytechnic University of Puerto Rico, 2015)A medical device facility in the island needs to determine the feasibility of replacing the existing air-cooled chilled water system at their main plant with a more efficient water-system in order to reduce the electric ... -
Thermal Diffusivity of a Single Crystal Silicon Wafer n-type Doped with Manganese
(Polytechnic University of Puerto Rico, 2012)Abstract - The thermoelectric-silicon based material is gaining enormous interest since silicon is abundant and cheap. The thermoelectric materials operate in direct conversion from heat to electrical energy with no mobile ... -
Inviscid, Incompressible CFD Solver with Coordinate Transformation for Aerodynamic Applications
(Polytechnic University of Puerto Rico, 2016)Fluid mechanics is a complex field of study with many modern design applications. Mechanical and aerospace engineers frequently have the need to analyze fluid flow patterns for practical design purposes ranging from a ... -
Data Center Design and Airflow Management (Insight into Increasing Performance and Efficiency)
(Polytechnic University of Puerto Rico, 2015)The formation of hot spots in data centers is usually caused by the inability to properly distribute the airflow and not for the lack of capacity by the cooling system. Airflow management is essential to reduce the ... -
Optimization of a SDOF Cantilever Beam Piezoelectric Energy Harvester with a Lump Mass at the End Tip
(Polytechnic University of Puerto Rico, 2016)With the development of low power electronics and energy harvesting technology, selfpowered systems have become a research hotspot over the last decade. The main advantage of selfpowered systems is that they require ... -
Crecimiento de las Microcavidades en el Área del Cuello bajo la Prueba de Tensión
(Polytechnic University of Puerto Rico, 2016)En esta investigación usted encontrará unos registros de datos e ilustraciones que fueron analizados sobre una serie de pruebas realizadas a varios especímenes de aleación de Aluminio 6061- T6 bajo la prueba de tracción ... -
A Modified Computer Model of a Hyperbolic Energy Analyzer to Determining Its Potential for Operating as a Mass Spectrometer
(Polytechnic University of Puerto Rico, 2016)Conventional energy analyzers are used as a plasma diagnostic tool for the determination of ion and electron energy spectra and temperature, having applications in a broad range of disciplines, including molecular spectroscopy, ... -
Preliminary Wind Turbine Assessment Using Urban Scaling Factors in Puerto Rico
(Polytechnic University of Puerto Rico, 2012)Abstract - It is well known that wind energy applications are most effective in wide open areas. As shown in the literature, rather than completely discard the location of wind turbines in urban areas, the reduction in ... -
Analysis and Characterization of the Condenser of a Small Scale Solar Air Conditioning Unit
(Polytechnic University of Puerto Rico, 2012)Abstract - This work is intended to show the characterization of a flat plate heat exchanger used as the condenser of a small scale solar air conditioning system and the recommendations for future studies. Also show flat ... -
An Application of Project Management Methodology for the Development of an Advance Identity Product within Budget and On Time Delivery
(Polytechnic University of Puerto Rico, 2012)Abstract - In an Advanced Identity Management Technology Company the purpose is to create solutions to identifying individuals in a system (such as a country, a network, or an enterprise) and controlling their access to ... -
Finite Element Modeling of Water Slamming on Sandwich Hull Structures
(Polytechnic University of Puerto Rico, 2017)This article evaluates the structural response of ship hull sandwich panels subjected to water slamming. Structural responses were obtained from several finite element (FE) model simulations developed by using the ... -
Finite Element Analysis of Sandwich T-Joints Subjected to Water Slamming Loads
(Polytechnic University of Puerto Rico, 2018)This article evaluates the structural response of a sandwich ship hull with T-joint longitudinal stiffeners subjected to water slamming. Finite element analysis was conducted using the commercial code LS-DYNA. The ...