Listar Departament: Enginyeria Mecànica i Construcció por título

Mostrando ítems 285-304 de 1124

    • openAccess   Consumer-oriented self-repair material design: small appliance case study 

      Martínez Sandez, Sonia; Pérez Belis, Victoria; Bovea, María D Asociación Española de Dirección e Ingeniería de Proyectos (AEIPRO) (2023)
      One of the strategies to extend the product’s lifespan is repair. In certain categories of small electrical and electronic equipment characterised by having a non-complex architecture and low purchase cost, if they break ...

    • openAccess   Contaminación atmosférica de las carreteras españolas 

      Garraín Cordero, Daniel; Vidal, Rosario Federación de Asociaciones de Ingenieros Industriales de España (2008)
      En este estudio se ha llevado a cabo la evaluación del impacto medioambiental que se produce por el uso de las carreteras españolas desde 2004 hasta 2006. Posteriormente, mediante la aplicación de la metodología de Análisis ...

    • openAccess   Contribución de la edificación a la sostenibilidad del medio rural 

      Ruá, María José; Huedo, Patricia; Cabeza Gonzalez, Manuel; Sáez Riquelme, Beatriz; Gallego, Teresa Asociación Española de Ciencia Regional (AECR) (2021-11-24)
      La finalidad de este estudio es analizar las características del medio urbano y construido en municipios rurales en riesgo de despoblación, con el fin de confeccionar un modelo sistematizado de diagnóstico a partir del ...

    • openAccess   Contribution of households' occupant profile in predictions of energy consumption in residential buildings: A statistical approach from Mediterranean survey data 

      Braulio-Gonzalo, Marta; Bovea, María D; Jorge-Ortiz, Andrea; Juan, Pablo Elsevier (2021-03-23)
      There is a growing acceptance that the profile of occupants has a significant influence on the variation in energy consumption in buildings. This is even more evident in the housing sector, where the characteristics of the ...

    • openAccess   Contribution of Roof Refurbishment to Urban Sustainability 

      Pitarch-Roig, Angel-Miguel; Ruá, María José; Reig, Lucía; Arín Gallego, Inés MDPI (2020)
      Achieving sustainable urban environments is a challenging goal—especially in existing cities with high percentages of old and obsolete buildings. This work analyzes the contribution of roof refurbishment to sustainability, ...

    • openAccess   Contribution of Social Services to Inclusive Urbanism 

      Ruá, María José; Agost-Felip, Mª Raquel; Huedo, Patricia Hapres (2024-02-28)
      Background: The United Nations 2030 Agenda involves a multifactorial system through 17 Sustainable Development Goals. The 11th is directly linked with urban sustainability, but all the goals should be considered. The ...

    • openAccess   Contribution of the deflection of tapered roller bearings to the misalignment of the pinion in a pinion-rack transmission 

      Roda-Casanova, Victor; Sanchez-Marin, Francisco Elsevier (2016)
      The misalignment of the gears is one of the main causes of premature failure in gear transmissions. This misalignment can be caused by different phenomena where the deformation of the elastic elements of the transmission ...

    • openAccess   Convective heat transfer modelling in dry-running polymer spur gears 

      Roda-Casanova, Victor; Sanchez-Marin, Francisco; Martinez Cuenca, Raul Elsevier (2022-11-16)
      Heat convection is an important phenomenon in the process of cooling polymer spur gears running in dry conditions, which ultimately affects the strength of the gears. In order to gain some insight into this phenomenon, a ...

    • openAccess   Convective heat transfer performance of thermal oil-based nanofluids in a high-temperature thermohydraulic loop 

      Gil Font, Javier; Navarrete Argilés, Nuria; Cervantes Calvo, Estefanía; Mondragon, Rosa; Torró Cueco, Salvador Francisco; Martinez Cuenca, Raul; Hernandez, Leonor Elsevier Masson SAS (2021-09-08)
      Enhancing the performance of heat transfer fluids (HTF) is a key target for improving the efficiency of many industrial processes. Employing nanofluids for this purpose, by dispersing nanoparticles into the initial HTF to ...

    • openAccess   Conventional and Advanced Exergoeconomic Analysis of a Compound Ejector-Heat Pump for Simultaneous Cooling and Heating 

      Al-Sayyab, Ali; Navarro-Esbrí, Joaquín; Soto Francés, Víctor Manuel; Mota-Babiloni, Adrián MDPI (2021-06-13)
      This work focused on a compound PV/T waste heat driven ejector-heat pump system for simultaneous data centre cooling and waste heat recovery for district heating. The system uses PV/T waste heat as the generator’s heat ...

    • openAccess   Convergence approach in experimental results 

      Camelo, Dioclecio; Vidal, Rosario; Mulet, Elena; García Fernández, Luis Amable Asociación Española de Dirección e Ingeniería de Proyectos (AEIPRO) (2005)
      The process of synthesis is based on phases of divergence and convergence. Many authors illustrate the divergence process to find better alternatives for the design requirements. Although there are still few explanations ...

    • closedAccess   Conversion of a direct to an indirect commercial (HFC134a/CO2) cascade refrigeration system: Energy impact analysis 

      Sánchez García-Vacas, Daniel; Llopis, Rodrigo; Cabello López, Ramón; Catalán-Gil, Jesús; Nebot-Andres, Laura Elsevier (2017)
      Energy impact of conversion of a direct HFC134a/CO2 cascade refrigeration system to an indirect HFC134a-secondary fluid / CO2 cascade for commercial applications is experimentally analysed. Refrigeration systems, fully ...

    • openAccess   Conversion of a Direct to an Indirect Refrigeration System at Medium Temperature Using R-134a and R-507A: An Energy Impact Analysis 

      Llopis, Rodrigo; Sánchez García-Vacas, Daniel; Cabello López, Ramón; Catalán-Gil, Jesús; Nebot-Andres, Laura MDPI (2018-02-06)
      This work presents the experimental evaluation of energy consumption and refrigerant charge reduction when a commercial direct expansion refrigeration system is converted into an indirect system. The evaluation (with R-134a ...

    • openAccess   Correct interpretation of nanofluid convective heat transfer 

      Buschmann, Matthias; Azizian, R.; Kempe, T.; Juliá Bolívar, José Enrique; Martinez Cuenca, Raul; Sundén, B.; Wu, Z.; Seppälä, A.; Ala-Nissila, T. Elsevier (2018-04)
      Engineers and scientist have a long tradition in trying to improve the thermophysical properties of convective heat carriers such as water and transformer oil. Technological developments of the last decades allow the ...

    • openAccess   Correlated-informed neural networks: a new machine learning framework to predict pressure drop in micro-channels 

      Mota-Babiloni, Adrián; Montanez Barrera, Alejandro; Barroso-Maldonado, Juan Manuel; Bedoya-Santacruz, A.F. Elsevier (2022-05-22)
      Accurate pressure drop estimation in forced boiling phenomena is important during the thermal analysis and the geometric design of cryogenic heat exchangers. However, current methods to predict the pressure drop have one ...

    • openAccess   Creative experience in engineering design: the island exercise 

      Chulvi, Vicente; Rivera, Javier; Vidal, Rosario Universidad Nacional de Colombia (2014-06)
      This work addresses the challenge of stimulating creative thought in higher education. With this aim in mind, the article describes the development of a collaborative creativity exercise designed to improve students' ...

    • openAccess   Creativity in people vs in methods 

      López Mesa, María Belinda; Mulet, Elena; Vidal, Rosario; Bellés, María José; Thompson, Graham Asociación Española de Dirección e Ingeniería de Proyectos (AEIPRO) (2005)
      This paper aims to analyse the type of influence that idea-finding methods and designers’ problem solving traits exert on the way the design process unfolds and in the outcomes. This is researched by means of protocol ...

    • closedAccess   Criteria analysis of green public procurement in the Spanish furniture sector 

      Braulio-Gonzalo, Marta; Bovea, María D Elsevier (2020-02-21)
      Green Public Procurement (GPP) constitutes a potential policy instrument to reduce the environmental impact of products, services and works, and to create environmental value for society. Further requirements had to be ...

    • openAccess   CSG Feature Trees from Engineering Sketches of Polyhedral Shapes 

      Plumed, Raquel; Varley, Peter Ashley Clifford; Company, Pedro Eric Galin and Michael Wand (2014)
      We investigate the problem of determining design intent from engineering sketches: what did the designer have in mind when sketching a component? Specifically, we consider the unidirectional reverse mapping from form ...

    • openAccess   Cuaderno de problemas resueltos de Proyectos de Ingeniería 

      CARLOS, MAR; Colomer Mendoza, Francisco José Publicacions de la Universitat Jaume I (2019)