Recent Submissions

  • Diseño de Programa de Dimensionamiento Preliminar de Compresor Axial de Doble Eje 

    Carbonell Colón, Martín J. (Polytechnic University of Puerto Rico, 2022)
    En la actualidad, se están desarrollando en todo el mundo proyectos de gran envergadura relacionados con el desarrollo energético, siendo más comunes los proyectos y creaciones de modelos para la ...
  • Dynamic Modeling and Control System Design for a Passenger Coaxial Dodecacopter 

    Nieves Nevárez, Mairim (Polytechnic University of Puerto Rico, 2022)
    Personal Aerial Vehicles (PAVs) are drones that provide transportation to passengers. The airframe and propulsion systems of a manned dodecacopter, or Personal VTOL Vehicle, were previously developed by ...
  • Horizontal Axis Wind Turbine Blade Design for the Urban Areas in Puerto Rico 

    Castanon Pereira, Angel L. (Polytechnic University of Puerto Rico, 2022)
    Horizontal Axis Wind Turbines are the preferred and most common method for power extraction from wind. In this study, the researcher will test three different airfoils to design a blade that optimizes ...
  • CFD-Based Method for Validation of DATCOMand Potential Flow Stability and Control Derivatives 

    Concepción Morales, Willie (Polytechnic University of Puerto Rico, 2021)
    DATCOM wasuse traditionally as the method to determine the aircraft downwash, and longitudinal stability and control derivatives for small unmanned air vehicles conceptual designat the Polytechnic ...
  • Cost Improvement Process - LAL Sample Selection Procedure 

    Alvarez Delgado, Frank (Polytechnic University of Puerto Rico, 2021)
    The Cost Improvement Process for LAL (Limulous Amoebocyte Lysate) Sample Selection Procedure was identified with the purpose of reduction of cost and increase in revenue. This process was analyzed and overviewed, estimating ...
  • Enhancements to Cardinal Health NPS Lab to USP-787 Standards 

    Figueroa Rodriguez, Jose A. (Polytechnic University of Puerto Rico, 2020)
    As the world develops and populations expand, new diseases arise at an exponential rate. This research is based on employing new modifications to NPS (Nuclear Pharmacy Services) Laboratory at Cardinal Health, Inc. ...
  • Analysis of Airfoils Modifications on Horizontal Axis Wind Turbine Blades 

    Guzmán Claudio, Carlos M. (Polytechnic University of Puerto Rico, 2020)
    This project investigates the combination of upper surface dimples and trailing edge serrations of a 3D thin airfoil and their effect on aerodynamic performance. Dimples are known to reduce a golf ball’s drag while a ...
  • Horizontal Fall Arrest and Restraint System Design for High Altitude Construction and Maintenance Work 

    Landron Torres, Milton L. (Polytechnic University of Puerto Rico, 2020)
    Horizontal fall arrest system design and implementation for future construction and maintenance work atop Building 10 of the International Distribution Center facilities of Cardinal Health located in Guaynabo, Puerto ...
  • Wind Blade Composite Design, Manufacturing and Experimental Testing 

    Hernández Gelpi, Miguel J. (Polytechnic University of Puerto Rico, 2013)
    The design and manufacture of composite material sandwich type blade is presented. Stainless steel rods and ribs, are the internal structure, core is foam, between ribs. The skin is a laminate of fiber glass and a ...
  • Free Convection Fresnel Lenses Concentrator 

    Ortiz Rosado, Javier (Polytechnic University of Puerto Rico, 2013)
    This project involves an evaluation of an improved Fresnel lenses solar energy concentrator. Its innovation consists of preventing forced convection heat losses at the receiver area. Heat losses by convection and by ...
  • Crack Growth in Compressive Stress Fields 

    Méndez Cuevas, Luis Gadiel (Polytechnic University of Puerto Rico, 2013)
    To understand how to analyze Damage Tolerance in an aerospace component loaded in compression one must first obtain correct Fatigue Crack Growth curves. Once the fatigue data curves are correct one could then move forward ...
  • Analysis and Application of Maxwell's Equation for Induction Heating 

    Vázquez Ruiz, Eduardo (Polytechnic University of Puerto Rico, 2013)
    This article involves the development of the Maxwell equations considering a induction heating system. It is analyzed by computer program "Ansys Maxwell," to observe the development of the magnetic field. The system ...
  • Parametric Study of Lift-Drag Coefficients vs. Geometric Parameters of Axial Compressor/Turbine for Flow Blade Interactions 

    Gerena Colón, Diolinete del C. (Polytechnic University of Puerto Rico, 2013)
    This project is a parametric study of the Lift-Drag coefficients from blade hub to tip radius of Axial Compressor/Turbine for flow blade interactions. The study contemplates the effect of Lift and Drag forces varying ...
  • Development of an Open Source Tool for the Preliminary Structural Design of a Small Wind Turbine Based on National and International Standards 

    Miranda Vélez, José A. (Polytechnic University of Puerto Rico, 2013)
    Wind energy have proven to be a viable option in the production of electricity. The benefits from wind energy sources include reductions in greenhouse gas emissions, water conservation and the diversification of the ...
  • Parallel Plates Internal Heat Transfer Analysis for Electronic Cooling 

    Meléndez Colón, Alex R. (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 

    Rodríguez Rivera, Iván (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 

    Sánchez Quiñones, Gustavo (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 

    Aponte Rivera, Alfredo (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 

    Holguino Borda, Jonathan (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 

    Lobeto Sanfeliz, Rodrigo (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 ...

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