Now showing items 1-19 of 19

  • Análisis de la fundición y mecanizado de palas de hélices de paso controlable 

    Montoya Giraldo, Harrison Albeiro (Universitat Politècnica de Catalunya, 2016-11)
    Bachelor thesis
    Restricted access - author's decision
  • Attitude control of a solar sail 

    Vilchez Llamazares, Enol (Universitat Politècnica de Catalunya, 2018-02-13)
    Bachelor thesis
    Open Access
    Covenantee:  Politecnico di Milano
    This study focuses to find the most beneficial control of attitude of a Solar Sail situated in the L1 Lagrange point. Several controls will be implemented in this work to find the most suitable one. From the most generic ...
  • Design and performance analysis study of a Hall effect thruster 

    Monill González, Ricard (Universitat Politècnica de Catalunya, 2016-06-13)
    Bachelor thesis
    Open Access
    1. Introducció.2. Anàlisi de missió, incloent càlcul de trajectòries i/o maniobres orbitals típiques, amb un cert grau de detall.3. Justificació del motor d'efecte Hall com a sistema propulsor adequat per a la missió en ...
  • Design and test of the bus of a very small solar sail 

    Navarro Juarez, Victor (Universitat Politècnica de Catalunya, 2017-10-31)
    Bachelor thesis
    Open Access
    With the advance on technology field, aerospace systems have been evolving during the years. Tendency on reducing size, mass and cost by increasing the efficiency on different elements has opened a wide range of possibilities. ...
  • Design, deployment mechanism, and thermal control of a very small solar sail 

    Pie Rubio, Carles (Universitat Politècnica de Catalunya, 2017-10-31)
    Bachelor thesis
    Open Access
    This document contains the design of a solar sail. Three main parts will be studied in this project: structural design, thermal design and deployment . The first one will be based in studying the different ...
  • Design of a solar sail as the propulsion system for a nanosatellite 

    Rique Garaizar, Orzuri (Universitat Politècnica de Catalunya, 2013-06)
    Master thesis (pre-Bologna period)
    Open Access
    This project presents the design of a solar sail as a feasible solution to thrust nanosatellites. A solar sail is a high-energy space propulsion system that uses solar radiation pressure to push large ultra-thin mirror to ...
  • Direct optimization of three-dimensional, low-thrust space trajectories with variable path constraints 

    Batet Farre, Adria (Universitat Politècnica de Catalunya, 2015-09-14)
    Bachelor thesis
    Open Access
    Low-thrust propulsion systems are growing in popularity for both Earth orbiting satellites and scientific spacecraft on interplanetary missions. This is thanks to the ability of these systems of traveling during more time ...
  • Estudio de un sistema de propulsión para UAV de autonomía infinita 

    Domínguez Moreno, Alejandro (Universitat Politècnica de Catalunya, 2015-06)
    Bachelor thesis
    Open Access
  • Estudio variación eficiencia energética y emisiones de una NGV en función del sistema de propulsión 

    Marí Serra, Juan Antonio (Universitat Politècnica de Catalunya, 2016-05)
    Bachelor thesis
    Restricted access - author's decision
  • Guidance, navigation and control of a very small solar sail 

    Diez Garcia, Carlos (Universitat Politècnica de Catalunya, 2017-10-31)
    Bachelor thesis
    Open Access
    With the miniaturization of the electrical components and the advance in aerospace technology, new methods of spatial propulsion have been developed. This thesis project is focused on solar radiation pressure modelling, ...
  • Multiphysics modeling and experimental validation of low temperature accumulator for cryogenic space propulsion systems 

    Torras Ortiz, Santiago; Castro González, Jesús; Rigola Serrano, Joaquim; Morales Ruíz, Sergio; Riccius, Jorg; Leiner, Johannes (2019-01-01)
    Article
    Restricted access - publisher's policy
    Within the framework of Low Thrust Cryogenic Propulsion (LTCP) systems, a low-temperature accumulator acting as thermal energy storage tank is an interesting option for cyclical processes under intermittent firings avoiding ...
  • Numerical Analysis of a Supersonic Turbine for Novel Propulsion Systems 

    Martínez Moralo, Oscar (Universitat Politècnica de Catalunya, 2012)
    Master thesis (pre-Bologna period)
    Restricted access - author's decision
    Current state-of-the-art supersonic turbines have been conceived to work under supersonic ow conditions where the inlet axial velocity is subsonic. For the present case, an extreme ow situation has been studied, where ...
  • Numerical modeling and experimental validation of Thermal Energy Storage tanks for propulsion systems under cryogenic conditions 

    Torras Ortiz, Santiago; Castro González, Jesús; Rigola Serrano, Joaquim; Morales, Sergio; Galione Klot, Pedro Andrés; Lehmkuhl Barba, Oriol; Oliva Llena, Asensio (2014)
    Conference lecture
    Restricted access - publisher's policy
    Low Thrust Cryogenic Propulsion (LTCP) systems [1] need a thermal energy storage acting as a heat accumulator, where a cryogenic flow of (LOx) propellant is gasified inside, under a fast transient evaporation process. The ...
  • Numerical modelling of the phase change material heat accumulator under fast transient gasification conditions in a low thrust cryogenic propulsion (LTCP) system 

    Castro González, Jesús; Galione Klot, Pedro Andrés; Morales Ruiz, Juan José; Lehmkuhl Barba, Oriol; Rigola Serrano, Joaquim; Pérez Segarra, Carlos David; Oliva Llena, Asensio (2012)
    External research report
    Restricted access - publisher's policy
    The study of one of the components, the heat accumulator, of Low Thrust Cryogenic Propulsion systems (LTCP), is of scientific interest in the framework of ISP-1 project [1]. This device stores thermal energy from the fuel ...
  • Numerical study of a Boundary Layer Ingesting Propulsion system 

    Berengué Llonch, Oleguer (Universitat Politècnica de Catalunya, 2012)
    Bachelor thesis
    Restricted access - author's decision
    For several years, Airbus has been working with the ONERA in a project called RAPRO aiming to study the in uence that a boundary layer created by an axisymmetric body placed upstream has in the global performances of an ...
  • Study of a micro force sensor for colloidal engines applications 

    Gómez Consarnau, Rafael (Universitat Politècnica de Catalunya, 2011-09)
    Master thesis (pre-Bologna period)
    Open Access
  • Study of Earth-Moon trajectories with solar sail propulsion 

    Canales García, David (Universitat Politècnica de Catalunya, 2014-09)
    Master thesis (pre-Bologna period)
    Open Access
    The computation of Earth-to-Moon trajectories constitutes an important and interesting chapter of spacecraft trajectory design. The traditional techniques based on Hohmann maneuvers and patched conics allowed the fast ...
  • Study of Earth-to-Mars transfers with low-thrust propulsion 

    López Hellín, Xavi (Universitat Politècnica de Catalunya, 2011-09)
    Master thesis (pre-Bologna period)
    Open Access
    Knowledge and investigation about low-thrust propulsion systems have been increasing during the last years and some spacecrafts employing this technology have succeeded in their objectives, which contribute to the possible ...
  • Study of the bed velocity induced by twin propellers 

    Mujal Colilles, Anna; Gironella Cobos, Xavier; Cabrera Crespo, Alejandro Jacobo; Sánchez-Arcilla Conejo, Agustín (2017-09)
    Article
    Open Access
    Twin propellers without a rudder were studied using a physical model with a fixed clearance distance and three different rotating velocities. Experimental results were compared with results from theoretical expressions ...