Now showing items 1-20 of 40

    • A commercial thermal energy storage technology for CHP and heat-only applications in industries: market research analysis and tecno-economic assessment. 

      Varisco, Matteo (Universitat Politècnica de Catalunya, 2021-06-21)
      Master thesis
      Restricted access - author's decision
      Covenantee:   Azelio
      With the rise of electricity generated from renewable energy, there is arising demand for cost-competitive energy storage solutions. Considering the intermittence and the non-dispatchability of renewable energy sources, ...
    • A first estimate for thermal osmotic long storage 

      Arias Montenegro, Francisco Javier; Heras Jiménez, Salvador Augusto de las (2019-09-15)
      Article
      Open Access
      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 ...
    • 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 ...
    • 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
    • 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 ...
    • Analytical solution to assess the induced seismicity potential of faults in pressurized and depleted reservoirs 

      Wu, Haiqing; Vilarrasa Riaño, Víctor; De Simone, Silvia; Saaltink, Maarten Willem; Parisio, Francesco (2021-01)
      Article
      Open Access
      Displaced faults crossing the reservoir could significantly increase the induced earthquake frequency in geo-energy projects. Understanding and predicting the stress variation in such cases is essential to minimize the ...
    • 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 ...
    • 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 ...
    • Effect of using external vertical fins in phase change material modules for domestic hot water tanks 

      Castell, Albert; Solé Cutrona, Cristian; Medrano, Marc; Roca Enrich, Joan; García-Almiñana, Daniel; Cabeza Fabra, Luisa Fernanda (2006-04)
      Article
      Open Access
      The effect of using external vertical fins in Phase Change Materials (PCM) modules to improve the natural convection coefficient in water is studied in this paper. The use of PCM in a water tank working with a solar system ...
    • 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 ...