Comunicacions a congressos (Enginyeria Industrial i de l’Edificació)
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- ItemOpen AccessUse of Textile Fiber Waste to Improve the Thermal and Mechanical Performance of Cement-Based Mortar(2024) Ayed, Rabeb; Borri, Emiliano; Zsembinszki, Gabriel; Bouadila, Salwa; Cabeza, Luisa F.; Lazaar, MariemImproving the thermal properties of materials used in buildings is crucial to reducing energy demand and consumption. This study investigated the use of textile fiber waste in cement-based composites for construction applications. Mechanical and thermal characterizations were carried out to assess the behavior of cement mortars with different percentages of two types of textile fibers after 7 and 28 days of water hardening. The results show that the incorporation of fibers can significantly improve the thermal insulation capacity of buildings by reducing the thermal conductivity of cement mortar by up to 52%. In addition, the use of textile fibers can improve themechanical strength of the cement mortar, especially with a high fiber content and a longer curing time.
- ItemOpen AccessALMIA Educativa as an educational strategy towards an effective energy transition of a rural village(2022) Arco Bravo, Isabel del; Ramos Pla, Anabel; Zsembinszki, Gabriel; Gracia Cuesta, Alvaro de; Cabeza, Luisa F.The 2030 Agenda for Sustainable Development [1] was adopted in 2015 by the United Nations (UN) and its member states with the main objective of providing a path to protect the planet from degradation and to people prosperity and world peace. A total of 17 Sustainable Development Goals (SDGs) are included in the agenda, with specific targets and actions to achieve this ambitious overarching goal. In Sustainable Development the person is key for policies and efforts to improve conditions in each social context. The three key aspects to consider are: (i) the promotion of remote human and socially equitable development for all humanity based on inclusion, (ii) the guidance of economic development at the service of human development, and finally, (iii) the promotion of responsible use of the planet’s natural resources [2]. The fast growth of population in large urban areas is expected to generate or aggravate many problems related to citizen insecurity, energy and water supply, excessive production and over-consumption, waste generation, etc. At the same time, access to affordable, reliable, sustainable, and modern energy for all people living in rural areas must be ensured. Education is a fundamental tool to build sustainable societies actively involving all citizens in the sustainable development. The objective of this paper is to describe the ALMIA project as a strategic plan for the transformation of a small village called Almatret (Catalonia, Spain) towards sustainable development as a net positive energy and sustainable village, aligned with the implementation of the 17 SDGs. This paper focuses on ALMIA Educativa as an educational strategy to make the energy transition effective in the rural village.
- ItemOpen AccessRecent trends and future perspectives on the use of phase change materials for thermal energy storage (CIES 2022)(2022) Cabeza, Luisa F.; Borri, EmilianoVision: Being a reference group of engineering at an international level, always linked to the University of Lleida. Mission: To propose solutions to the industry in the fields of sustainability, energy engineering and control, through research, technology transfer and training. Objectives: To improve existing knowledge through research and innovation ; To help increase the competitiveness of companies through collaborations, whether for the design of new products or as a technology consultancy.
- ItemOpen AccessRecent trends and future perspectives on the use of phase change materials for thermal energy storage (CNIT 2022)(2022) Cabeza, Luisa F.; Borri, EmilianoVision: Being a reference group of engineering at an international level, always linked to the University of Lleida. Mission: To propose solutions to the industry in the fields of sustainability, energy engineering and control, through research, technology transfer and training. Objectives: To improve existing knowledge through research and innovation ; To help increase the competitiveness of companies through collaborations, whether for the design of new products or as a technology consultancy.
- ItemOpen AccessNew Concept for High Temperature Thermal Energy Storage Using a Concrete Tank(2022) Cabeza, Luisa F.; Vérez, David; Zsembinszki, Gabriel; Borri, Emiliano; Prieto, CristinaThe use of concrete is showing great potential as thermal energy storage material for concentrating solar power plants (CSP) due to its versatility, relatively low cost, and the possibility to reach a high operating temperature, above 500ºC thus increasing the plant efficiency. However, actual configurations based on concrete show different drawbacks including difficulties during the manufacturing on-site, different thermal expansion coefficients between concrete and pipes, and poor thermal conductivity of concrete. In order to address those challenges, this study proposes a new TES concrete tank concept based on three main pillars: modularity, improved concrete formulation, and direct contact concept. A preliminary assessment of the thermal performances of the new concept was analyzed through simulations showing the temperature distribution of the modules.