Artículos (Ingeniería del Diseño)

URI permanente para esta colecciónhttps://hdl.handle.net/11441/11347

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Análisis cartográfico de los mapasde Francisco Gali para las Relaciones Geográficas del siglo XVI: Tlacotalpan y Coatzacoalcos (1580)
(Asociación Española de Geografía, 2026-07) Morato-Moreno, Manuel; Morato Huerta, Pablo; Ingeniería Gráfica; Ingeniería del Diseño
En el último tercio del siglo XVI la Corona española implementó las Relaciones Geográficas para cartografiar el Nuevo Mundo mediante encuestas enviadas a cada población. La mayoría de los mapas resultantes carecieron de mediciones rigurosas, escala y coordenadas geográficas. Este artículo analiza dos excepciones notables: los mapas de Tlacotalpan y Coatzacoalcos (1580) realizados por Francisco Gali (1539-1586), navegante, explorador y cosmógrafo cuya pericia fue reconocida por el virrey Moya de Contreras como comparable “con los más escogidos de Europa”. A diferencia de la mayoría del corpus, estos mapas fueron levantados por un profesional de la navegación aplicando técnicas métrico-cosmográficas. Mediante análisis comparativo con cartografía actual y la herramienta MapAnalyst, se evaluó la precisión planimétrica de ambos documentos y se identificaron los patrones metodológicos de su autor. Los resultados muestran que el mapa de Tlacotalpan presenta errores relativos entre 1,3 % y 25,8 % en mediciones costeras, mientras que el de Coatzacoalcos revela dos escalas diferenciadas (1:428 700 costera y 1:181 200 fluvial), reflejo de metodologías de levantamiento distintas condicionadas por el territorio y las circunstancias del encargo. Ambos constituyen ejemplos tempranos de cartografía métrica y cosmográfica en Hispanoamérica.
Factors Affecting Conflict Resolution Capacity: An Organizational Perspective from Construction Firms
(2026-06-22) Villena Manzanares, Marcelo; Villena Manzanares, Francisco; Ingeniería de la Construcción y Proyectos de Ingeniería; Ingeniería del Diseño; TEP924: Expresión Gráfica del Producto y de las Instalaciones
Construction management, from the contractor’s perspective, is led by the Construction Manager (CM). The work motivation and leadership style of the CM are critical variables for the successful execution of construction projects. The scientific literature identifies participative leadership as the most effective style for mitigating conflicts among various stakeholders. However, analyzing the specific variables that influence a CM’s conflict resolution capacity remains an underexplored area. Furthermore, while the CM must act as a leader for their team (subcontractors, suppliers, etc.), they remain accountable to the contractor’s senior management. Therefore, this study aims to analyze the mediating role of CM motivation in the relationship between leadership and conflict resolution capacity using Partial Least Squares Structural Equation Modeling (PLS-SEM). In the construction industry, conflict resolution is not merely a situational fix but a critical process of capturing and externalizing tacit knowledge. Knowledge management and the ability to resolve conflicts in the construction sector are directly linked, critical, and strategic in nature. Construction is an industry characterized by fragmentation, the temporary nature of its projects, diversity of stakeholders (developers, builders, subcontractors, engineering firms) and a high level of uncertainty. In this environment, conflict is virtually inevitable. However, the way in which a CM handles a conflict determines whether it becomes a destructive dispute or an opportunity for improvement.
Life cycle assessment of a novel CO2-based electrothermal energy and geological storage system
(Elsevier, 2026-10) Marques Valderrama, Abraham; Carro Paulete, Andrés; Peralta-Álvarez, María Estela; Farkas, Márton Pál; Carneiro, J.; García-Crespo, J.; Papadopoulou, Simira; Gianni, E.; Chacartegui, Ricardo; Ingeniería Energética; Ingeniería del Diseño; European Commission (EC)
Long-duration energy storage is increasingly required to support power systems with high shares of variable renewable energy. The CEEGS (CO₂-based Electrothermal Energy and Geological Storage) system is an emerging, low-TRL Carnot battery concept that combines a transcritical CO₂ electrothermal cycle with geological CO₂ storage to provide long-duration electricity storage. This study presents the first life cycle assessment (LCA) of the CEEGS concept, focusing on identifying environmental hotspots and the influence of plant scale and electricity supply at an early stage of technology development. An attributional cradle-to-gate LCA was conducted in accordance with ISO 14040/44 standards using the ReCiPe H method, with a functional unit of 1 MWh of electricity delivered. Six scenarios were analysed, combining two plant capacities (5 and 100 MW) and three electricity supply options for the charging phase. The results show that electricity supply dominates the environmental profile when grid-mix electricity is used, whereas the use of renewable electricity substantially reduces overall impacts and shifts the contribution toward electrothermal equipment, geological infrastructure and CO₂ transport. Scenarios based on surplus renewable electricity represent lower-bound estimates under conditions of high renewable availability. Increasing plant size leads to lower impacts per unit of electricity delivered, particularly for CO₂ transport and electrothermal components, due to infrastructure amortisation effects. Scaling the system from 5 to 100 MW reduces the impacts of CO₂ transport by over 50% and of electrothermal equipment by 5–10%, showing that larger systems amortise infrastructure more effectively. The study highlights the key parameters governing the environmental performance of the CEEGS concept and how it can achieve competitive environmental performance, based on LCA, environmental decision-making, and design optimisation at low technology readiness levels.
Methanol-based thermochemical energy storage (TCES) for district heating networks
(Elsevier, 2024-07-01) Rodríguez Pastor, Diego Antonio; Carvajal Trujillo, Elisa; Becerra Villanueva, José Antonio; Soltero Sánchez, Víctor Manuel; Chacartegui, Ricardo; Ingeniería Energética; Ingeniería del Diseño; European Community (EC); Ministerio de Ciencia e Innovación (MICIN). España; TEP137: Máquinas y Motores Térmicos
With increasing volatility in natural gas markets and the need for residential heat, research for alternative thermal systems based on green hydrogen-based fuels is necessary. Massive implementation of hydrogen in the current fleet presents a challenge for the decarbonisation of conventional thermal processes. This paper presents the integration of green methanol from a seasonal thermochemical energy storage system (TCES) coupled with district heating networks (DHN). It allows for a solar-based storage and low-temperature heat generation from the exothermic discharge reaction. The system uses concentrated solar thermal energy to decompose methanol into syngas at moderate temperatures (<315 °C), reducing GHG emissions from combustion to meet residential heat. Its potential is assessed through an analysis of 458 rural municipalities in Spain, achieving a substitution of 3.1 % of the natural gas demand. The system allows the production of green fuels from syngas using an open-loop approach, offering new market pathways in primary sector. In a closed-loop configuration, roundtrip efficiencies exceeding 60 % and chemical conversion efficiencies exceeding 70 % are reached, resulting in a global efficiency of 12 % for the DHN and methanol-TCES. The results show a levelized cost of stored energy highly competitive with other storage systems (<200€/MWh), given its simplicity.
A Data-Driven Framework for Assessing Compound Urban Heat–Energy Vulnerability: Evidence from Two Mediterranean Housing Districts
(Elsevier, 2026-08-01) Alnajjar, Sonia; García Martínez, Antonio; López Cabeza, Victoria Patricia; Construcciones Arquitectónicas I; Ingeniería del Diseño; TEP130: Arquitectura, Patrimonio y Sostenibilidad: Acústica, Iluminación, Óptica y Energía; TEP206: SATH Sostenibilidad en Arquitectura, Tecnología y Patrimonio: Materialidad y Sistemas Constructivos
Climate change is intensifying compound risks in Mediterranean cities, where urban heat exposure, energy stress, and socio-economic disadvantage increasingly converge, yet most urban energy assessments treat these dimensions in isolation. To address this gap, we propose a data-driven framework for assessing compound urban heat–energy vulnerability, centred on the Urban Heat–Energy Vulnerability (UHEV) index, a novel composite metric that quantifies the interaction between thermal exposure (via Land Surface Temperature and vegetation scarcity), building energy performance (from Urban Building Energy Modelling), and social sensitivity (via PCA-weighted socio-demographic indicators). The framework is applied to two comparable mid-century housing districts—Dahiet Al-Hussein (Amman) and San Pablo (Seville)—revealing distinct vulnerability profiles despite similar urban morphology. Amman exhibits substantially higher Energy Use Intensity (151 kWh/m²·yr) and cooling-driven demand, while Seville shows lower overall energy intensity (90 kWh/m²·yr) but elevated domestic hot water loads. UHEV mapping identifies spatial hotspots where thermal exposure, energy inefficiency, and socio-economic constraints co-occur, enabling multi-scale diagnosis at both district and building levels. By embedding these diagnostics within the SER–DMAIC analytical cycle, the framework translates compound vulnerability into targeted, context-specific interventions, prioritizing sufficiency strategies along efficiency and renewable measures. The results demonstrate that UHEV functions not only as a composite index but as a robust, transferable tool for identifying hidden vulnerability patterns and supporting equitable, climate-responsive retrofit planning in compound-stress urban contexts.
Regenerative design for heat-resilient cities: Nature-based microclimatic strategies in a Mediterranean context
(MDPI, 2026-05-08) Diz Mellado, Eduardo María; Soto Orozco, Juan; López Cabeza, Victoria Patricia; Sánchez de la Flor, Francisco José; Rivera-Gómez, Carlos; Ingeniería del Diseño; Construcciones Arquitectónicas I; Ministerio de Ciencia, Innovación y Universidades (MICIU). España; TEP206: SATH Sostenibilidad en Arquitectura, Tecnología y Patrimonio: Materialidad y Sistemas Constructivos
Urban areas in Mediterranean climates are increasingly affected by extreme heat, exacerbated by the Urban Heat Island (UHI) effect and the lack of climate-responsive public spaces. This study addresses the need for integrated methodologies combining empirical monitoring and simulation tools to support regenerative urban design. The objective is to evaluate the effectiveness of Nature-Based Solutions (NBSs) in improving microclimatic conditions and outdoor thermal comfort during summer heatwave periods in a vulnerable urban area in Seville (Spain). A mixed-method approach combining microclimatic monitoring and ENVI-met simulations in situ was applied. A field campaign conducted in summer 2023 was used to characterize baseline conditions and calibrate the model, which simulated both current and proposed scenarios incorporating vegetation, shading systems, permeable materials, and water features. Results from the Seville case study show significant improvements, with air temperature reductions of up to 1.6 °C (daytime) and 1.9 °C (nighttime), surface temperature decreases of up to 11 °C, and thermal comfort improvements reaching 8 °C in UTCI. Beyond environmental benefits, the intervention promotes socially regenerative public space by enhancing usability, inclusivity, and comfort. Limitations include the use of a single representative summer day and inherent simplifications of the ENVI-met model. These findings demonstrate the potential of integrated NBS strategies to mitigate urban heat and support climate-adaptive and socially responsive urban design.
Sustainable vegetation management methods in commercial photovoltaic plants
(Elsevier, 2026-08) Rodríguez Pastor, Diego Antonio; Ruiz Díez, A.; González López, J.J.; Soltero Sánchez, Víctor Manuel; Chacartegui, Ricardo; Ingeniería Energética; Ingeniería del Diseño; Geografía Humana
CONTEXT Solar photovoltaic (PV) systems are rapidly penetrating energy systems to replace fossil fuels. Their sustainable operation requires biodiversity-enhancing vegetation management to prevent panel shading and fire hazards. Sheep grazing is gaining interest for enabling new business models and revitalizing livestock trails, with European regulations increasingly mandating sheep-grazing over conventional methods as a sustainable practice. OBJECTIVE This article compares current PV plant grazing methods and analyses the implementation of sheep transhumance for PV vegetation management in dry Mediterranean climates. It proposes a transferable methodology for global rural, agricultural, and livestock regions adjacent to solar installations. METHODS A case study was conducted in the city with southern Spain's largest PV deployment (9 GWp accumulated), combined with GIS analysis of land-use correlations between energy installations and prior agricultural zones. RESULTS AND CONCLUSIONS GIS analysis revealed high spatial correlation between PV sites and historical land uses. However, a deficit of ≥250,000 sheep exists to graze all regional PV plants (∼60,000 sheep/GW-year). Closing this gap could save up to €3 M annually in the province alone (at €50/sheep-year). Nationwide, Spanish PV stakeholders could gain nearly €18 M/year, scaling to >€200 M/year across the EU. Sheep transhumance is thus a viable, economically beneficial solution for sustainable PV operations. SIGNIFICANCE This methodology enables scalable integration of renewable energy and pastoral agriculture, offering substantial cost savings, biodiversity gains, and economic opportunities for rural communities globally while supporting regulatory compliance.
The European Influence on Qing Dynasty Architecture: Design Principles and Construction Innovations Across Cultures
(MDPI, 2025-08-02) Castilla Roldán, Manuel-Viggo; Ingeniería del Diseño; HUM1008: Arquitectura, Patrimonio y Ecología
The design and planning of Western-style constructions during the early Qing Dynasty in China constituted a significant multicultural encounter that fused technological advancement with aesthetic innovation. This cultural interplay is particularly evident in the imperial garden and pavilion projects commissioned by the Qing court, which served as physical and symbolic sites of cross-cultural dialogue. Influenced by the intellectual and artistic movements of the European Renaissance, Western architectural concepts gradually found their way into the spatial and visual language of Chinese architecture, especially within the royal gardens and aristocratic buildings of the time. These structures were not simply imitative but rather represented a selective adaptation of Western ideas to suit Chinese imperial tastes and principles. This article examines the architectural language that emerged from this encounter between Chinese and European cultures, analysing symbolic motifs, spatial design, ornamental aesthetics, the application of linear perspective, and the integration of foreign architectural forms. These elements collectively functioned as tools to construct a unique visual discourse that communicated both political authority and cultural hybridity. The findings underscore that this architectural phenomenon was not merely stylistic imitation, but rather a dynamic convergence of technological knowledge and artistic vision across cultural boundaries.
Occupational Risk Prevention in People with Autism Spectrum Disorder: A Review of the State of the Art
(MDPI, 2025-10-08) Torres Álvarez, Mayly; Peralta, Estela; Ingeniería del Diseño; Junta de Andalucía; TEP992: Diseño e Ingeniería
People with Autism Spectrum Disorder (ASD) face significant barriers to accessing and maintaining employment, many of which stem from work environments that fail to accommodate their neurological diversity. This article aims to analyze the occupational risks faced by autistic individuals in the workplace. A total of 39 scientific studies were reviewed, and the results identified nine predominant thematic categories of occupational risks. Particularly prominent were deficient communication, lack of structured support, cognitive overload, and difficulties coping with change. The reported situations were examined in detail, with attention paid to their specific contexts. A clear predominance of psychosocial risks over ergonomic ones was observed. The review also highlights several underexplored yet equally relevant risk factors, such as discontinuity in supported employment programs, difficulties in requesting reasonable accommodations, discrimination, a lack of professional recognition, and the negative effects of digital or remote environments, such as isolation. This study underscores the importance of recognizing unsafe conditions arising from the lack of neurodiversity-informed adjustments as a necessary step toward implementing organizational and social adaptations in the workplace.
Investigación: Evaluación de la huella hídrica del uso y mantenimiento de los edificios. Aplicación a viviendas en Andalucía, España
(Colegio Oficial de Aparejadores y Arquitectos Técnicos de Sevilla, 2025-01) Rivero Camacho, Cristina; Marrero Meléndez, Madelyn; Ingeniería del Diseño; Construcciones Arquitectónicas II; TEP172: Arquitectura: Diseño y Técnica
Las empresas de construcción pueden lograr el éxito financiero y reducir los impactos ambientales de los proyectos mediante la gestión cuidadosa de los presupuestos de los proyectos y la consideración simultánea de los costos económicos y los impactos ambientales. Sin embargo, durante su uso y mantenimiento, los edificios incurren en ramificaciones que van más allá de su construcción y que pueden ser igualmente significativas. En este trabajo se evalúa la huella hídrica (HH) de la etapa de mantenimiento y uso de los edificios a partir de la información de los presupuestos de los proyectos de construcción. Para ello, se emplea la herramienta computacional PREDICE. La herramienta pronostica los impactos ambientales indirectos, cuantificando los impactos incorporados en los materiales de construcción y la maquinaria a partir de su análisis de ciclo de vida. En este trabajo también se evalúan los impactos directos derivados del consumo de agua de los ocupantes a partir de los datos reportados. El capítulo explora la construcción de edificios residenciales en Andalucía, España, utilizando la base de datos de costos de construcción y el sistema de desglose de obras de la región. Se analiza el proyecto de construcción, concretamente su presupuesto (BoQ), para predecir las tareas de mantenimiento a lo largo de su ciclo de vida. Noventa y cinco unidades de trabajo de mantenimiento y su coste están definidos e integrados en la herramienta PREDICE. Se estudia un proyecto real: un edificio plurifamiliar de 4 plantas que proporciona vivienda social. Los resultados demuestran cómo el uso de la herramienta permite localizar las fuentes de mayor impacto a lo largo del ciclo de vida, facilitando así la toma de decisiones en cuanto a la reducción de costes económicos y ambientales. La huella hídrica de las viviendas consiste en torno al 80% de consumo directo por parte de los habitantes, mientras que un 20% se debe al agua incorporada en los materiales de construcción y la producción de energía. Además, el agua incorporada en la producción de energía es significativamente tan alta como la huella de materiales de construcción.
Comparative assessment of quantitative infrared thermography approaches for experimental thermal transmittance determination using UAVs
(Elsevier, 2026-04-15) Videras Rodríguez, Marta; López Cabeza, Victoria Patricia; Gómez Melgar, Sergio; Andújar Márquez, José Manuel; Ingeniería del Diseño; Ministerio de Ciencia e Innovación (MICIN). España; European Commission (EC). Fondo Europeo de Desarrollo Regional (FEDER); TEP206: SATH Sostenibilidad en Arquitectura, Tecnología y Patrimonio: Materialidad y Sistemas Constructivos
Rapid and non-contact evaluation of building thermal efficiency remains a major challenge in urban energy management. The increasing use of Unmanned Aerial Vehicles (UAVs) equipped with thermal cameras has expanded the potential of aerial thermography as a diagnostic tool for assessing building energy performance. This study compares five Quantitative Infrared Thermography (QIRT) methodologies (Methods A-E) for estimating the U-value of building envelopes, benchmarking them against theoretical reference values derived from in-situ wall characterization. The research analyzes the sensitivity of these methods to boundary condition uncertainties through two winter experimental campaigns in southwestern Spain. Results reveal that no single experimental method is universally robust; accuracy is critically dependent on the algebraic formulation of each method and specific environmental variables. Methods A and B exhibited extreme sensitivity to wind speed, showing deviations of up to 52 % with minor perturbations (±1 m/s), rendering them unsuitable without precise anemometry. Method E showed deviations of ≈40 % linked to internal surface temperature variations, while Method C proved highly volatile regarding external surface temperatures. Conversely, Method D, which incorporates both convective and radiative terms, emerged as the most balanced approach, showing intermediate stability (≈20– 27 % deviation) across all variables. Consequently, this study identifies the optimal application scenarios for each method based on field measurement capabilities, providing a decision-making framework to ensure the reliability of UAV-based thermographic assessments.
Diseño y validación de cuestionario sobre motivaciones del alumnado de Bachillerato para su elección de estudios
(Universidad de Granada, 2025-09-30) Corrales Serrano, Mario; Sánchez Martín, Jesús; Zamora-Polo, Francisco; Moreno Losada, José; Ingeniería del Diseño; TEP990: Proyectos de Ingeniería
Introducción: La motivación es un factor psicológico fundamental en la trayectoria académica del estudiante, e influye tanto en su capacidad de aprendizaje, como en las decisiones que el estudiante toma en su itinerario educativo. En la etapa de Bachillerato, el factor motivacional tiene especial relevancia para la elección de modalidades de estudio (Ciencias, Humanidades y Ciencias Sociales y Artes) Método: Este trabajo presenta el diseño y validación de un cuestionario cuyo propósito principal es medir la incidencia de la motivación interna y externa en la elección de modalidad de estudios de Bachillerato. Esta herramienta se ha diseñado teniendo como base las teorías de motivación y el bien interno, desde el plano psicológico, antropológico y pedagógico. El proceso de validación se ha realizado mediante tres procedimientos: análisis por parte de expertos, testeo por parte de estudiantes pertenecientes a la etapa de Bachillerato, para comprobar la comprensibilidad y los parámetros concretos de aplicación, y la prueba de Alfa de Cronbach, para valorar la fiabilidad con la que el cuestionario mide los factores de motivación. Resultados: Los resultados indican que el cuestionario es idóneo para la función de medir la incidencia de motivaciones internas y externas en estudiantes de Bachillerato, para la que fue diseñado. Conclusiones: Esto permite concluir que el cuestionario puede ser utilizado para medir la incidencia de motivaciones internas y externas en la elección de modalidad de estudios del alumnado de Bachillerato.
Análisis de la naturaleza motivacional de la elección de estudios en Bachillerato
(Servicio de Publicaciones, Universidad de Murcia, 2026-02-27) Corrales Serrano, Mario; Sánchez Martín, Jesús; Zamora-Polo, Francisco; Moreno Losada, José; Ingeniería del Diseño; TEP990: Proyectos de Ingeniería
El Bachillerato es el periodo en el que se toman decisiones que van a afectar de modo relevante al futuro académico del alumnado. La elección de modalidad de estudios es la más significativa. Conocer las motivaciones que influyen en estas decisiones es muy importante mejorar procesos de enseñanza-aprendizaje. El presente estudio analiza las motivaciones internas y externas de una muestra de 238 estudiantes de Bachillerato. Se pretende identificar prevalencias de un tipo u otro de motivación según su modalidad de estudios. la muestra se ha seleccionado por procedimiento de conveniencia, no probabilístico, en diversos institutos de España. los datos se han recogido con un cuestionario diseñado ad hoc, de 21 ítems en escala Likert. Los resultados señalan que el tipo de motivación predominante es el externo, tanto en los estudiantes de Ciencias, como en lo de Ciencias Sociales, aunque se detectan interesantes matices en la elección de criterios individuales.
Integrating Complexity and Risk Analysis for Selection of Management Approaches in Complex Projects: Application to UN Peacekeeping Missions
(MDPI, 2026-01-16) Aguilar-Planet, Teresa; Peralta, Estela; Ingeniería del Diseño; TEP992: Diseño e Ingeniería
The growing complexity and dynamism of industrial and organizational projects require management approaches that can effectively adapt to uncertainty and rapidly changing operational environments. In this context, this study proposes a methodology to identify the most suitable management approach—predictive, agile, or hybrid—in complex projects. Building on the “Approach suitability tool” of the Project Management Institute’s (PMI), the methodology integrates quantitative assessments of complexity and systemic risk. This is achieved through the analysis of stakeholder and risk networks, using metrics such as cyclomatic complexity and the coevolution parameter g, which allow for a deeper understanding of interactions and the evolution of project elements. The methodology was validated in three peacekeeping missions of the United Nations: UNMISS in South Sudan, MONUSCO in the Democratic Republic of Congo, and MINUSTAH in Haiti. The results confirm that the methodology accurately identifies the most appropriate management approach, emphasizing the effectiveness of hybrid approaches in complex and volatile environments. The proposed methodology serves as a valuable tool for optimizing project management in diverse contexts, enabling a quantitative and systematic evaluation of complexity and risk. It is adaptable and applicable to a wide range of complex projects, improving decision-making and planning in uncertain settings. Furthermore, by incorporating resilience as a cross-cutting principle, the methodology strengthens the ability of projects and their teams to maintain functionality and sustain learning even in highly volatile environments, where continuous adaptation becomes a critical success factor. In this sense, resilience emerges as the property that allows projects to absorb disruptions, reorganize, and preserve their core purpose without losing cohesion or direction.
Assessment of a polygeneration system for district heating and cooling using biogas from wastewater treatment plants
(Elsevier, 2026) Picardo, A; Peralta-Álvarez, María Estela; Soltero Sánchez, Víctor Manuel; Ortiz Domínguez, Carlos; Chacartegui, Ricardo; Ingeniería Energética; Ingeniería del Diseño
Biogas, as a product of anaerobic biodegradation processes of organic matter, has significant potential to be integrated into district heating networks to improve their efficiency. Wastewater treatment plants can be transformed into dual-purpose centres for sustainable resource generation and pollution reduction while also providing sludge management. This work investigates the role of biogas generated in wastewater treatment plants in fulfilling the demand requirements for heating, cooling, and domestic hot water in urban areas with district heating and cooling systems. The analysis estimates available biogas potential, evaluates total thermal energy demand, selects equipment for a polygeneration plant, and conducts techno-economic optimisation. Three urban locations in southern Europe with different climatic conditions were selected as case studies to establish energy demand profiles. Specific configurations were proposed for each plant, aiming to meet local thermal energy demands with an optimised cost. With overall efficiencies and equivalent electric efficiencies in the plants of up to 84 % and 79 %, respectively, integrating biogas into the proposed polygeneration systems as a support for primary energy achieves a reduction in primary energy consumption by 21 % to 39 % of total demand and economic savings from 40 % to 50 % of annual cost. It shows the interest and the technical and economic feasibility of partially replacing natural gas with biogas, supporting system decarbonisation and contributing to long-term climate neutrality goals.
Systematic methodology for estimating the social dimension of construction projects - assessing health and safety risks based on project budget analysis
(MDPI, 2025-07-01) Alba-Rodríguez, María Desirée; Lucas Ruiz, Valeriano; Marrero Meléndez, Madelyn; Ingeniería del Diseño; Construcciones Arquitectónicas II; Junta de Andalucía; TEP172: Arquitectura: Diseño y Técnica
One of the major challenges in the construction sector involves achieving sustainability in all three of its dimensions: economic, social, and environmental. Economic and environmental assessments have already been unified, but social indicators are still excluded. In this line, it is important for a rapid introduction of sustainability indicators that the evaluations of its three dimensions are carried out simultaneously and without adding new training or a large workload to the project. In this work, it is proposed to use the definition of tasks in construction cost databases. These, due to their long tradition in the sector, have a clear definition of the contours of the problem and the inventory of resources. Therefore, based on this inventory that does not leave any unaccounted element, the evaluation of the social dimension is proposed through the use of the work units of the databases as an element of occupational risk assessment. The project cost and risk assessment are performed simultaneously in the construction of a social housing project in Andalusia, Spain. The costs of prevention measures represent 5% of the work units’ costs and reduce the risk indicator by 65%.
Integrated Creative Design Process: The Role of Sketching in Industrial Design
(Common Ground Research Networks, 2025-05-29) Martín-Mariscal, Amanda; Fernández-Rodríguez, Juan Francisco; Aguilar Alejandre, María; Peralta, Estela; Ingeniería del Diseño; TEP992: Diseño e Ingeniería; HUM1025: Creación, Arte Gráfico, Estética y Género
In industrial design, visual representation methods are important for communicating design ideas and defining product concepts. Among these methods, sketching serves multiple functions and is widely recognized as a key tool for fostering creativity, particularly in the early stages of the design process. This study examines various sketching taxonomies and models that explain design and creative processes, establishing a theoretical foundation for the research. Based on this framework, a novel graphic ideation model is proposed to integrate the creative process into the design workflow through the strategic use of sketches. The model identifies different types of sketches and correlates them with specific stages of the design process, highlighting their potential to enhance creativity and originality. A case study involving the design of a desk was conducted to assess whether the model improves creativity in the design outcome. This case study was compared with two others where the model was not applied. The evaluation of creativity, measured through novelty and usefulness, showed that the case using the graphic ideation model resulted in higher levels of creativity. However, the results should be interpreted carefully, as they are limited by the scope of the study and the specific conditions under which it was conducted.
Analysis of an ultra-low temperature district heating and cooling as a storage system for renewable integration
(Elsevier, 2022-11) Quirosa Jiménez, Gonzalo; Torres-García, Miguel; Soltero Sánchez, Víctor Manuel; Chacartegui, Ricardo; Ingeniería del Diseño; Ingeniería Energética; TEP137: Máquinas y Motores Térmicos
Sector coupling is necessary for efficient renewable integration since almost all renewable energy sources depend on environmental parameter variations. This paper follows a research line that studies the application of ultra-low temperature district heating and cooling systems, with working temperatures between 6 and 40 °C, to integrate renewable sources with a storage strategy, using the distribution network as a storage system. This work analyses the impact on the annual operation of the water volume, insulation characteristics, demand patterns, photovoltaic generation, design temperature limits and European climates. The optimal design of the district heating and cooling as a storage system will differ depending on the objective, to integrate the maximum amount of renewables excess or obtain maximum electricity savings. For the system located in Seville, hot Mediterranean climate, network insulation is almost negligible with water volumes below 30 m3; for greater values, the self-regulation temperature of the district heating and cooling system is relevant. Moreover, the maximum temperature increment in the distribution network is positive to minimise operational costs. Within the analyses performed in different European regions, the better results of grid consumption savings were obtained in hot Mediterranean areas, 33 %, meanwhile better renewable integration into the district system was obtained in the warm Mediterranean, with 65 % of the photovoltaic excess integrated.
A biomass universal district heating model for sustainability evaluation for geographical areas with early experience
(Elsevier, 2022-03) Soltero Sánchez, Víctor Manuel; Quirosa Jiménez, Gonzalo; Peralta, Estela; Chacartegui, Ricardo; Torres-García, Miguel; Ingeniería del Diseño; Ingeniería Energética
Biomass district heating systems are an optimal economic and environmental solution for generating and distributing thermal energy. One of the main challenges for a broader development of these systems is the complexity of its implementation in the absence of established regulations in the legal, commercial, technical, or economic fields, a situation that occurs in geographical areas with early experience. This work proposes a model for the sustainability of biomass district heating systems, including the whole value chain, taking into account the role of the stakeholders. The design of this Biomass Universal District Heating (BioUnivDH) optimises the implementation and sustainability of the district heating system in geographical areas with early experience. It is conceived to identify implementation barriers and to contribute to their elimination. The model identifies the stakeholders of the project through the analysis of their relationships, objectives, and expectations. This model allows comparison between different systems, and it improves the decision-making process with a holistic approach that identifies strategies for successful implementation and operation based on economic, environmental, and social acceptance criteria. Finally, to show the application of the BioUnivDH model, it is applied in four heating system projects based on biomass and implemented in four Spanish cities.
Emotional design engineering for packaging of olive oil using machine learning techniques
(Taylor and Francis, 2025-09-12) Heras García de Vinuesa, Ana de las; Zamora-Polo, Francisco; Ferramosca, Antonio; Luque Sendra, Amalia; Ingeniería del Diseño; Universidad de Sevilla; TEP990: Proyectos de Ingeniería
Consumer behaviour, and therefore purchase intentions, are affected by the visual elements of packaging. This is particularly important for products in the agri-food sector, especially for olive oil. In this work, the perception of different packaging options by olive oil users is analysed. For this, machine learning tools are employed in the synthesis phase of the Kansei Engineering (KE) methodology. On the one hand, four properties (material, colour, price, capacity) were considered for the definition of the property space. Subsequently, for the determination of the semantic space, a literature search was first performed, and an affinity analysis was then carried out, followed by a pilot survey to reduce the number of Kanseis. The semantic space consisted of 17 and 6 Kanseis, respectively. The final survey was given to a sample of 100 Andalusian citizens. Machine learning techniques (linear regression, ridge regression SVR) were employed for the synthesis phase. The results show that KE can be used as a tool to optimise the design of olive oil packaging by using machine learning tools in the synthesis phase. This study can provide the basis for other studies of other agri-food products and for the use of other artificial intelligence tools.

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