Now showing items 1-20 of 36

  • Advanced analysis of thermal energy storage in CSP plants 

    Pérez Segarra, Carlos David; González Acedo, Ignacio; Torras Ortiz, Santiago; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2016-11-24)
    External research report
    Open Access
  • A first estimate for thermal osmotic long storage 

    Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (2019-09-15)
    Article
    Restricted access - publisher's policy
    In this brief note, a first assessment on the possibilities for thermal osmotic storage using the thermal precipitation of aqueous solutions as alternative to sensible heat storage is performed. In a recent study it was ...
  • A methodology for determining optimum solar tower plant configurations and operating strategies to maximize profits based on hourly electricity market prices and tariffs 

    Guedez, Rafael; Topel, Monica; Conde, Ines; Ferragut, Francisco; Callaba, Irene; Spelling, James; Hassar, Zhor; Pérez Segarra, Carlos David; Laumert, Bjorn (2016-04-01)
    Article
    Restricted access - publisher's policy
    The present study analyzes the influence that market conditions have on determining optimum molten salt solar tower plants with storage that maximizes profits (in terms of plant configuration, sizing, and operation) for a ...
  • Análisis de sistemas energéticos 

    Tormo Fusté, Eduard (Universitat Politècnica de Catalunya, 2012-01-11)
    Master thesis (pre-Bologna period)
    Open Access
    El present projecte tracta d'analitzar una auditoria energètica tèrmica aplicada al sector industrial. Per a dur-ho a terme utilitzarem la metodologia EINSTEIN,es una metodologia lligada a una eina informàtica, aquesta ...
  • Analysis and design of a drain water heat recovery storage unit based on PCM plates 

    Morales-Ruiz, S; Rigola Serrano, Joaquim; Oliet Casasayas, Carles; Oliva Llena, Asensio (2016-10-01)
    Article
    Open Access
    This paper is focused on the detailed analysis of a PCM plate heat storage unit with a particular configuration, looking for the maximum contact area with the fluid (water) and the minimum volume to be used in a real ...
  • Analysis of different solar energy acquisition systems for applications in the Moon 

    Campal, Maryne (Universitat Politècnica de Catalunya, 2012-07-27)
    Bachelor thesis
    Restricted access - author's decision
    The big challenge of the NASA and space agencies for years to come is to return to the Moon to build a base of research there. This return to the Moon stays only a stage before the purpose of the big space agencies: the ...
  • Analysis of heat storage with a thermocline tank for concentrated solar plants 

    Graells Vilella, Albert (Universitat Politècnica de Catalunya / Sabanci Universitesi, 2013)
    Master thesis (pre-Bologna period)
    Open Access
    The storage system in a concentrated solar plant is considered an important concern to increase the capacity factor of the plant by producing power during the night or in cloudy days. This paper presents different storage ...
  • A new thermocline-PCM thermal storage concept for CSP plants. Numerical analysis and perspectives 

    Galione Klot, Pedro Andrés; Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Lehmkuhl Barba, Oriol; Rigola Serrano, Joaquim (2013)
    Conference report
    Open Access
    Thermocline storage concept has been considered for more than a decade as a possible solution to reduce the huge cost of the storage system in CSP plants. However, one of the drawbacks of this concept is the decrease in ...
  • Diseño térmico y mecánico de un intercambiador de calor 

    Casanova Arévalo, Adrián (Universitat Politècnica de Catalunya, 2016-10-11)
    Bachelor thesis
    Restricted access - author's decision
    Covenantee:  J. Mabres
    En el present projecte es dissenyarà un intercanviador de calor que pugui realitzar un procés determinat. L’intercanviador que es dissenyi ha de resoldre un problema o cobrir una necessitat real que existeix en l’industria ...
  • Disseny d’un sistema de dissipació integrat i dessasistit per evitar sobreescalfaments en instal·lacions solars tèrmiques 

    Sabaté Galobardes, Josep (Universitat Politècnica de Catalunya, 2011-04)
    Master thesis (pre-Bologna period)
    Open Access
    En el següent document es tracta la problemàtica del sobreescalfament en les instal·lacions solars tèrmiques. Aquestes instal·lacions, degut a les condicions externes, han d’estar aprovisionats amb un sistema de dissipació ...
  • Drain water heat recovery storage-type unit for residential housing 

    Torras Ortiz, Santiago; Oliet Casasayas, Carles; Rigola Serrano, Joaquim; Oliva Llena, Asensio (2016-06-25)
    Article
    Open Access
    The drain water heat recovery (DWHR) system is an interesting household technology to reduce energy costs and environmental impact. The objective of the utilisation of these devices is the recovery of the waste heat from ...
  • Estudio del Na2S como material de almacenamiento termoquímico 

    Fontanet Badia, Xavier (Universitat Politècnica de Catalunya, 2013-04)
    Master thesis (pre-Bologna period)
    Open Access
    Los sistemas de almacenamiento de energía térmica (TES) tienen el potencial de aumentar la efectividad de equipos que funcionen mediante energía térmica, debido a que permiten almacenar el calor perdido. Cuando se trabaja ...
  • Evaluación y mejora de una red de intercambiadores de calor aplicando la tecnologia pinch 

    Jiménez Vicente, Rebeca (Universitat Politècnica de Catalunya, 2007)
    Master thesis (pre-Bologna period)
    Restricted access - confidentiality agreement
  • Exergetic optimisation of a solar energy installation 

    Al Omar Mesnaoui, Anas; Illa Alibés, Josep (Société Marocaine des Sciences Mécaniques, 2009)
    Conference report
    Open Access
    This paper deals with the Exergetic optimisation stutdy of the PCM’s slabs- Solar Energy Storage Tank (SEST). Both melting temperature and the maximum power output taking into account the phase change process are determined.
  • Feasibility study of a district heating system from a low enthalpy shallow hydrothermal aquifer 

    Crespo Castro, Candela (Universitat Politècnica de Catalunya, 2019-10-09)
    Master thesis
    Restricted access - author's decision
    A novel tool to evaluate the technical and economic feasibility of an open loop geothermal district heating systemhas been developed in MATLAB-App Designer. The GeoDH Tool has been thought to be modular and adaptable to ...
  • Feasibility study on thermal energy harvesting for low powered electronics in high-voltage substations 

    Kadechkar, Akash; Riba Ruiz, Jordi-Roger; Moreno Eguilaz, Juan Manuel; Capelli, Francesca (Institute of Electrical and Electronics Engineers (IEEE), 2018)
    Conference lecture
    Open Access
    Electronic devices combining sensors, wireless communications, and data processing capability allow easing predictive maintenance tasks in many applications. This paper applies this approach in power connectors for ...
  • Heat storage and electricity generation in the Moon during the lunar night 

    Climent, Blai; Torroba, Oscar; González Cinca, Ricardo; Ramachandran, Narayanan; Griffin, Michael D. (2013-08-01)
    Article
    Restricted access - publisher's policy
    One of the biggest challenges of the exploration of the Moon is the survival of the crew and the lunar assets during the lunar night. The environmental conditions on the lunar surface and its cycle, with long periods of ...
  • Incidencia de la inercia térmica en edificios de uso intermitente 

    Escalona Gelabert, Vanessa (Universitat Politècnica de Catalunya, 2007-11)
    Master thesis (pre-Bologna period)
    Open Access
    El presente proyecto pretende remarcar la necesidad de un estudio pormenorizado de las características de los cerramientos para conseguir un funcionamiento eficiente del edificio. Hasta hace poco tiempo, cuando un ingeniero ...
  • In-situ approach for thermal energy storage and thermoelectricity generation on the Moon: modelling and simulation 

    Fleith, Patrick; Cowley, Aidan; Canals Pou, Alberto; Valle Lozano, Aaron; Frank, Rebecca; López Córdoba, Pablo; González Cinca, Ricardo (2020-01)
    Article
    Restricted access - publisher's policy
    Human, tele-operated rovers, and surface infrastructures are now being actively considered for lunar polarexploration. Current approaches to energy provision consider, among others, hybrid direct energy/chemicaltechnologies, ...
  • Multi-layered solid-PCM thermocline thermal storage for CSP. Numerical evaluation of its application in a 50 MWe plant 

    Galione Klot, Pedro Andrés; Pérez Segarra, Carlos David; Rodríguez Pérez, Ivette María; Torras Ortiz, Santiago; Rigola Serrano, Joaquim (2015-09-01)
    Article
    Open Access
    Thermocline storage concept is considered as a possible solution to reduce the cost of thermal storage in concentrated solar power (CSP) plants. Recently, a multi-layered solid-PCM (MLSPCM) concept—consisting of a ...