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Raúl Briones-Llorente
Universidad de Burgos

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Conference paper
Published: 15 August 2020 in Advances in Intelligent Systems and Computing
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Mobility of doctoral students is considered a critical factor which contributes to the doctoral graduate research performance and the knowledge transfer. The research productivity of doctoral students is still more critical for those novel research groups which have to overcome several barriers before they reach a reasonable stability in research productivity. Getting started with a novel group could take several years until the group reaches a minimum productivity, depending on the field of study. Besides, internationalization of a novel group means its regular participation in the international research networks in the respective scientific domain. This contribution presents a case study of the impact of international mobility of doctoral students in the global research productivity of the hosting novel research group. The increase in research productivity due to mobility of doctoral students is shown analyzing the evolution of the number of articles published and comparing it to the critical decisions of internationalization taken by the group, suggesting a relationship between both arguments. Results show that the impact of the doctoral mobility reaches 45% of the total productivity in a period of 12 years.

ACS Style

Gabriel Rubio-Pérez; Mohamed Lifi; Raúl Briones-Llorente; Fernando Aguilar. The Impact of International Mobility in Doctoral Training in Novel Research Groups: A Case Study. Advances in Intelligent Systems and Computing 2020, 288 -294.

AMA Style

Gabriel Rubio-Pérez, Mohamed Lifi, Raúl Briones-Llorente, Fernando Aguilar. The Impact of International Mobility in Doctoral Training in Novel Research Groups: A Case Study. Advances in Intelligent Systems and Computing. 2020; ():288-294.

Chicago/Turabian Style

Gabriel Rubio-Pérez; Mohamed Lifi; Raúl Briones-Llorente; Fernando Aguilar. 2020. "The Impact of International Mobility in Doctoral Training in Novel Research Groups: A Case Study." Advances in Intelligent Systems and Computing , no. : 288-294.

Journal article
Published: 05 July 2020 in Energy and Buildings
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Building renovation plays a key role in reducing greenhouse gas emissions and achieving the climate protection goals. The district scale approach is one of the most effective approaches to accelerate this process of reducing the energy consumption in the building sector as increasing its renovation rates. In this context, the Energy in Buildings and Communities Programme of the IEA, IEA-EBC started in 2017 the project “Annex 75: Cost-Effective Building renovation at District Level Combining Energy Efficiency and Renewables” aiming to explore optimal opportunities of district renovations from a cost-benefit perspective. IEA Annex 75 is a co-operative effort of participants from 13 different countries: Austria, Belgium, China, Czech Republic, Denmark, Germany, Italy, The Netherlands, Norway, Portugal, Spain, Sweden and Switzerland. In this paper, key elements of the methodology developed in Annex 75 project are presented. This methodology aims to facilitate the identification of optimal solutions in different European countries, enabling to explore similarities and differences amongst them, with a particular focus on the balance between energy efficiency measures and renewable energy measures. After a detailed description of the developed methodology, it is also applied to a case study located in Portugal and results obtained are analysed in detail. The paper demonstrates the usefulness of the methodology for evaluating and identifying optimal solutions in renovations at district scale, as well as for successfully addressing the research questions investigated by the Annex 75 project. They also provide some insights regarding the specific case study, showing that, although district systems are not usual in the current Portuguese context, these centralised solutions in renovations at district level are cost-effective interventions that can lead to significant reductions of greenhouse gas emissions and non-renewable primary energy use.

ACS Style

Jon Terés-Zubiaga; Roman Bolliger; Manuela Almeida; Ricardo Barbosa; Jørgen Rose; Kirsten Engelund Thomsen; Eduardo Montero; Raúl Briones-Llorente. Cost-effective building renovation at district level combining energy efficiency & renewables – Methodology assessment proposed in IEA EBC Annex 75 and a demonstration case study. Energy and Buildings 2020, 224, 110280 .

AMA Style

Jon Terés-Zubiaga, Roman Bolliger, Manuela Almeida, Ricardo Barbosa, Jørgen Rose, Kirsten Engelund Thomsen, Eduardo Montero, Raúl Briones-Llorente. Cost-effective building renovation at district level combining energy efficiency & renewables – Methodology assessment proposed in IEA EBC Annex 75 and a demonstration case study. Energy and Buildings. 2020; 224 ():110280.

Chicago/Turabian Style

Jon Terés-Zubiaga; Roman Bolliger; Manuela Almeida; Ricardo Barbosa; Jørgen Rose; Kirsten Engelund Thomsen; Eduardo Montero; Raúl Briones-Llorente. 2020. "Cost-effective building renovation at district level combining energy efficiency & renewables – Methodology assessment proposed in IEA EBC Annex 75 and a demonstration case study." Energy and Buildings 224, no. : 110280.

Journal article
Published: 03 May 2020 in Polymers
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An ecological mortar is designed from industrial sub-products, with the objective of utilizing both the slag residues, generated during steel manufacturing processes, and the waste from Polyurethane Foam (PF) panels, generated during refrigerator chamber manufacturing processes. The ecological mortar design involves the dosing of Electric Arc Furnace (EAF) slag, together with finely ground Polyurethane Foam, cement, and additives. An energy efficient prefabricated block is designed with the mortar, for use in construction, and its energy performance is assessed as a material inserted within the envelope of a service sector (hospital) building, either as an exterior skin, or as an enclosing component within the façade interior. The main contribution of this research is the characterization of the thermo-physical and mechanical properties of a new prefabricated panel made with recycled materials. The full characterization of the properties of these new materials is presented and discussed. The new prefabricated panel demonstrates adequate thermo-mechanical characteristics as a substitute for traditional materials, while improving the sustainability of the building. As a secondary objective, the energy behaviour of the new panels when integrated in a real building is presented by means of a case study simulation. The use of computational thermal simulation confirmed that the properties of the prefabricated block influenced the annual thermal demand of the building for heating and cooling. Improvements to the thermal inertia of the building envelope were also confirmed with the inclusion of PF waste, giving the mortar an energy performance that was similar to conventional materials, in such a way that its use in façade construction may be validated, in addition to its environmental benefits, due to it having been manufactured with critical recycled industrial waste such as EAF slag and PF, thereby contributing to both the circular economy and sustainable development.

ACS Style

Raúl Briones-Llorente; Ricardo Barbosa; Manuela Almeida; Eduardo Atanasio Montero García; Ángel Rodríguez Saiz. Ecological Design of New Efficient Energy-Performance Construction Materials with Rigid Polyurethane Foam Waste. Polymers 2020, 12, 1048 .

AMA Style

Raúl Briones-Llorente, Ricardo Barbosa, Manuela Almeida, Eduardo Atanasio Montero García, Ángel Rodríguez Saiz. Ecological Design of New Efficient Energy-Performance Construction Materials with Rigid Polyurethane Foam Waste. Polymers. 2020; 12 (5):1048.

Chicago/Turabian Style

Raúl Briones-Llorente; Ricardo Barbosa; Manuela Almeida; Eduardo Atanasio Montero García; Ángel Rodríguez Saiz. 2020. "Ecological Design of New Efficient Energy-Performance Construction Materials with Rigid Polyurethane Foam Waste." Polymers 12, no. 5: 1048.

Journal article
Published: 03 June 2019 in Sustainability
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Present waste management policies aim to reduce waste environmental impacts and improve resources’ efficiency. The use of waste and recycled materials to develop green construction materials are attracting researchers worldwide to develop new solutions addressed to increase the sustainability of buildings. This work presents a study of a new recycled mortar panel from the point of view of its contribution to the sustainability of buildings. Materials from industrial waste, as rigid polyurethane foam and electric arc furnace slags, are used as an additive of prefabricated mortar panels. The new proposed panels must have good thermal behavior with respect to the heat transfer interactions with the outside temperature and relative humidity, when compared to traditional brick or concrete. A test building with two kinds of representative uses, which are both residential and tertiary, and located in three cities of Spain with different climates, will be energy simulated in order to assess the thermal behavior of new construction or refurbished opaque ventilated façades with the new mortar panel. The thermal behavior of the new mortar panels would be studied by means of two energy assessments: (i) the evaluation of the influence of the new mortar panel in the energy demand of the whole building when compared to traditional materials, and (ii) the detailed analysis of the transient inner surface temperature of the space walls when using the new mortar panel. Based on the results obtained from the energy simulations performed, it follows that the thermal behavior of the mortar panel is, at least, equivalent to those of the other two materials, and even better in some aspects.

ACS Style

Raúl Briones-Llorente; Verónica Calderón; Sara Gutiérrez-González; Eduardo Montero; Ángel Rodríguez. Testing of the Integrated Energy Behavior of Sustainable Improved Mortar Panels with Recycled Additives by Means of Energy Simulation. Sustainability 2019, 11, 3117 .

AMA Style

Raúl Briones-Llorente, Verónica Calderón, Sara Gutiérrez-González, Eduardo Montero, Ángel Rodríguez. Testing of the Integrated Energy Behavior of Sustainable Improved Mortar Panels with Recycled Additives by Means of Energy Simulation. Sustainability. 2019; 11 (11):3117.

Chicago/Turabian Style

Raúl Briones-Llorente; Verónica Calderón; Sara Gutiérrez-González; Eduardo Montero; Ángel Rodríguez. 2019. "Testing of the Integrated Energy Behavior of Sustainable Improved Mortar Panels with Recycled Additives by Means of Energy Simulation." Sustainability 11, no. 11: 3117.