Màster universitari en Ciències Aplicades a l'Enginyeria

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Treballs de fi de màster universitari en Ciències Aplicades a l'Enginyeria de l'Escola Politècnica Superior [Més informació del màster]

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    Numerical analysis of including phase change material in a domestic hot water cylinder
    (2011-10-13T08:49:14Z) Gracia Cuesta, Alvaro de
    The domestic hot water cylinder incorporates encapsulated pcm placed in 57 vertical pipes. The use of PCM increases the thermal energy storage capacity of the cylinder and allows the use of low cost electricity during low peak periods. After experimental validation the numerical model developed in the project will be used to optimize the distribution of the pcm inside the water tank.
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    Open Access
    Improvement of the thermal performance of commercial freezers using phase change materials (PCM)
    (2011-10-13T09:15:20Z) Oró Prim, Eduard
    The aim of this work is to improve the thermal performance of commercial freezers using phase change materials (PCM) and the prove the importance of the correct PCM selection (melting temperature) for each application. To do this a vertical freezer with and without macro encapsulation PCM are used to assess the benefits of using PCM in minimizing temperature fluctuations and to maintain at the lowest possible temperature the freezer under heat of losses.
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    Life cycle analysis and life cyle impact assessment methodologies: a state of the art
    (2011-10-13T10:44:23Z) Menoufi, Karim Ali Ibrahim
    Life cycle analysis (LCA) is a comprehensive method for assessing the environmental impact of a product or an activity over its entire life cycle. The purpose of conducting LCA studies varies from one application to another. Different applications use LCA for different purposes. In general, the main aim of using LCA is to reduce the environmental impact of products through guiding the decision making process towards more sustainable solutions. The most critical phase in an LCA study is the Life Cycle Impact Assessment (LCIA) where the life cycle inventory (LCI) results of the considered substances related to the study of a certain system are transformed into understandable impact categories that represent the impact on the environment. In this research work, a general structure clarifying the steps that shall be followed ir order to conduct an LCA study effectively is presented. These steps are based on the ISO 14040 standard framework. In addition, a survey is done on the most widely used LCIA methodologies. Recommendations about possible developments and suggetions for further research work regarding the use of LCA and LCIA methodologies are discussed as well.
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    Kumar's algorithm for solving Toeplitz systems of equations over finite fields
    (2011-11-18T12:03:58Z) Busom Figueres, Núria
    Adaptació de l'algorisme de Kumar per resoldre sistemes d'equacions amb matrius de Toeplitz sobre els reals a cossos finits en un temps 0 (n log n).
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    Open Access
    Design of PCM thermal storage unit for a HVAC system
    (2012-02-22) Moreno Argilés, Pere
    L'objectiu del projecte és el disseny d'una unitat d'emmagatzematge d'energia térmica que optimitzi i millori l'eficiència del sistema de climatització. Aquesta unitat contindrà materials de canvi de fase (PCM) per emmagatzemar l'energia i estarà acoblada a un sistema de climatització format per una bomba de calor i una unitat de tractament de l'aire.
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    Compact thermal storage: a-state-of-the-art review of experimental results
    (2012-04-05) Cot Gores, Jaume
    Thermal energy storage (TES) can increase the thermal energy effieresa, of a process by reusing the waste heat from industrial process, solar energy or other sources. There are different ways to store thermal energy: by sensible heat, by latest heat, by sorption process or by chemical reaction. This thesrs provides a-state-of-the-art review of the experimental performance of TES systems based on solid gas sorption process and chemical reactions. The importance of theses processes is that provides a heat loss free storage system with a high energy density.
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    Analysis of thermal properties of phase change materials (PCM) using differential scanning calorimeter (DSC)
    (2012-04-05) Sheth Karathia, Falguni
    Commercially available PCM RT 20, RT 27, SP 22, A17 and SP 25 A8. Were analyzed using dynamic and step method of heat flux DSC. The results of the dinamic and step method were compared with commercial valures. It was found that RT 20 & RT 27 showed good conforming of results with commercial values while SP 22 A17 & SP 25 A8 did not show conformity.
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    Implementation of the Rijndael-AES algorithm on a Sage-Math worksheet
    (2012-07) Vicens Escuer, Albert
    La principal motivació d'aquest treball ha estat implementar l'algoritme Rijndael-AES en un full Sage-math, paquet de software matemàtic de lliure distribució i en actual desenvolupament, aprofitant les seves eines i funcionalitats integrades.
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    Highly concentrated bitumen emulsions. A state of the art, review of experimental results
    (2013-07) Querol Solà, Núria
    Les emulsions concentrades o altament concentrades de betum són un camp molt poc estudiat avui en dia. El treball és un estat de l'art de tots els papers que hi ha sobre aquest tema desde el mètode tradicional fins el HIPR (High Internal Phase Ratio).
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    Scheduling an European basketball competition. An application of graph theory
    (2013-09) Folguera, Carles
    The object of this project is to schedule a ctitious European basketball competition with many teams situated a long distances. The schedule must be fair, feasible and economical, which means that the total distance trav- eled by every team must be the minimal possible. First, we de ne the sport competition terminology and study di erent competition systems, focusing on the NBA and the Euroleague systems. Then we de ne concepts of graph theory and spherical distance that will be needed. Next we propose a com- petition system, explaining where will be allocated the teams and how will be the scheduling. Then there is a description of the programs that have been implemented, and, nally, the complete schedule is displayed, and some possible improvements are mentioned.