Now showing items 1-20 of 20

    • Advanced phase-change intermediate heat exchanger development for multistage thermoelectric heat pumps 

      Erro Iturralde, Irantzu; Aranguren Garacochea, Patricia Upna Orcid; Alegría Cía, Patricia; Rodríguez García, Antonio Upna Orcid; Astrain Ulibarrena, David Upna Orcid (Elsevier, 2023)   Artículo / Artikulua  OpenAccess
      The need to reach a full energy decarbonisation is well known. Heating and cooling consumption is almost half of the global energy end-use. Thus, development of low-carbon and highly efficient power-to-heat technologies ...
    • Computational study on the thermal influence of the components of a thermoelectric ice maker on the ice production 

      Rodríguez García, Antonio Upna Orcid; Astrain Ulibarrena, David Upna Orcid; Martínez Echeverri, Álvaro Upna Orcid; González Vian, José Upna (Springer USTMSIEEE, 2012)   Artículo / Artikulua  OpenAccess
      The main objective of this paper is to study the thermal resistances of two components of a thermoelectric ice maker installed in a no-frost refrigerator, in order to optimize the ice production. This study is conducted ...
    • Corrigendum to “Oscillatory motions in restricted N-body problems” [J. Differential Equations 265 (2018) 779–803] 

      Álvarez-Ramírez, Martha; Rodríguez García, Antonio Upna Orcid; Palacián Subiela, Jesús Francisco Upna Orcid; Yanguas Sayas, Patricia Upna Orcid (Elsevier, 2019)   Artículo / Artikulua  OpenAccess
      At the beginning of paper [1] there is an error that spreads along the rest of the work and the conclusions are not correct in their present form. Precisely, in Section 2, page 783, there is a contradiction related to the ...
    • Development and experimental validation of a computational model in order to simulate ice cube production in a thermoelectric ice maker 

      Rodríguez García, Antonio Upna Orcid; González Vian, José Upna; Astrain Ulibarrena, David Upna Orcid (Elsevier, 2009)   Artículo / Artikulua  OpenAccess
      We have developed a computational model which allows the simulation of a thermoelectric device to make ice cubes in a vapor compression domestic fridge. This model solves both the thermoelectric and heat transfer equations, ...
    • Development and experimental validation of a thermoelectric test bench for laboratory lessons 

      Rodríguez García, Antonio Upna Orcid; Astrain Ulibarrena, David Upna Orcid; Martínez Echeverri, Álvaro Upna Orcid; Aranguren Garacochea, Patricia Upna Orcid; Pérez Artieda, Miren Gurutze Upna Orcid (OmniaScience, 2013)   Artículo / Artikulua  OpenAccess
      The refrigeration process reduces the temperature of a space or a given volume while the power generation process employs a source of thermal energy to generate electrical power. Because of the importance of these two ...
    • Experimental development of a novel thermoelectric generator without moving parts to harness shallow hot dry rock fields 

      Alegría Cía, Patricia; Rodríguez García, Antonio Upna Orcid; Catalán Ros, Leyre Upna Orcid; Astrain Ulibarrena, David Upna Orcid; Araiz Vega, Miguel Upna Orcid (2021)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Nowadays, geothermal energy in shallow hot dry rocks is not exploited enough due to the high economic and environmental impact as well as the lack of scalability of the existing technologies. Here, thermoelectricity has a ...
    • Experimental development of a novel thermoelectric generator without moving parts to harness shallow hot dry rock fields 

      Alegría Cía, Patricia; Catalán Ros, Leyre Upna Orcid; Araiz Vega, Miguel Upna Orcid; Rodríguez García, Antonio Upna Orcid; Astrain Ulibarrena, David Upna Orcid (Elsevier, 2022)   Artículo / Artikulua  OpenAccess
      Nowadays, geothermal energy in shallow hot dry rock fields is not exploited enough due to the high economic and environmental impact as well as the lack of scalability of the existing technologies. Here, thermoelectricity ...
    • Experimental investigation of the applicability of a thermoelectric generator to recover waste heat from a combustion chamber 

      Aranguren Garacochea, Patricia Upna Orcid; Astrain Ulibarrena, David Upna Orcid; Rodríguez García, Antonio Upna Orcid; Martínez Echeverri, Álvaro Upna Orcid (Elsevier, 2015)   Artículo / Artikulua  OpenAccess
      A thermoelectric generator prototype has been built; it produces 21.56 W of net power, the produced thermoelectric power minus the consumption of the auxiliary equipment, using an area of 0.25 m2 (approximately 100 W/m2). ...
    • Experimental measurement of the thermal conductivity of fused deposition modeling materials with a DTC-25 conductivity meter 

      Rodríguez García, Antonio Upna Orcid; Fuertes Bonel, Juan Pablo Upna; Oval Trujillo, Añaterve; Pérez Artieda, Miren Gurutze Upna Orcid (MDPI, 2023)   Artículo / Artikulua  OpenAccess
      The expansion and low cost of additive manufacturing technologies have led to a revolution in the development of materials used by these technologies. There are several varieties of materials that can be used in additive ...
    • Experimental measurement of thermal conductivity of stereolithography photopolymer resins 

      Oval Trujillo, Añaterve; Rodríguez García, Antonio Upna Orcid; Pérez Artieda, Miren Gurutze Upna Orcid; Dung Dang, Phuc Yau; Alegría Cía, Patricia (Springer, 2022)   Artículo / Artikulua  OpenAccess
      The rise in the use of additive manufacturing highlights the importance of knowing the properties of the materials employed in this technology. Therefore, for the commercialization of thermal applications with this technology, ...
    • Experimental study and optimization of thermoelectric-driven autonomous sensors for the chimney of a biomass power plant 

      Rodríguez García, Antonio Upna Orcid; Astrain Ulibarrena, David Upna Orcid; Martínez Echeverri, Álvaro Upna Orcid; Aranguren Garacochea, Patricia Upna Orcid (2014)   Artículo / Artikulua  OpenAccess
      In the work discussed in this paper a thermoelectric generator was developed to harness waste heat from the exhaust gas of a boiler in a biomass power plant and thus generate electric power to operate a flowmeter installed ...
    • The importance of the assembly in thermoelectric generators 

      Araiz Vega, Miguel Upna Orcid; Catalán Ros, Leyre Upna Orcid; Herrero Mola, Óscar Upna; Pérez Artieda, Miren Gurutze Upna Orcid; Rodríguez García, Antonio Upna Orcid (IntechOpen, 2018)   Capítulo de libro / Liburuen kapitulua  OpenAccess
      Generally, in the optimization of thermoelectric generators, only the heat exchangers or the thermoelectric modules themselves are taken into account. However, the assembly of the generator as a whole is of vital importance ...
    • Improvement of a thermoelectric and vapour compression hybrid refrigerator 

      Astrain Ulibarrena, David Upna Orcid; Martínez Echeverri, Álvaro Upna Orcid; Rodríguez García, Antonio Upna Orcid (Elsevier, 2012)   Artículo / Artikulua  OpenAccess
      This paper presents the improvement in the performance of a domestic hybrid refrigerator that combines vapour compression technology for the cooler and freezer compartments, and thermoelectric technology for a new compartment. ...
    • Influence of temperature and aging on the thermal contact resistance in thermoelectric devices 

      Rodríguez García, Antonio Upna Orcid; Pérez Artieda, Miren Gurutze Upna Orcid; Beisti Antoñanzas, Irene Upna Orcid; Astrain Ulibarrena, David Upna Orcid; Martínez Echeverri, Álvaro Upna Orcid (Springer, 2020)   Artículo / Artikulua  OpenAccess
      During thermal design in the first phases development, thermoelectric systems, such as thermoelectric generators, the most important parameter affecting the performance is thermal resistance of the components. This paper ...
    • Net thermoelectric power generation improvement through heat transfer optimization 

      Aranguren Garacochea, Patricia Upna Orcid; Astrain Ulibarrena, David Upna Orcid; Rodríguez García, Antonio Upna Orcid; Martínez Echeverri, Álvaro Upna Orcid (Elsevier, 2017)   Artículo / Artikulua  OpenAccess
      Thermoelectric generation contributes to obtain a more sustainable energetic system giving its potential to harvest waste heat and convert it into electric power. In the present study a computational optimal net generation ...
    • Oscillatory motions in restricted N-body problems 

      Álvarez-Ramírez, Martha; Rodríguez García, Antonio Upna Orcid; Palacián Subiela, Jesús Francisco Upna Orcid; Yanguas Sayas, Patricia Upna Orcid (Elsevier, 2018)   Artículo / Artikulua  OpenAccess
      We consider the planar restricted N-body problem where the N−1 primaries are assumed to be in a central configuration whereas the infinitesimal particle escapes to infinity in a parabolic orbit. We prove the existence of ...
    • Study of the degradation of heat exchanger materials in the acidic environment of Teide National Park 

      Catalán Ros, Leyre Upna Orcid; Pérez Artieda, Miren Gurutze Upna Orcid; Berlanga Labari, Carlos Upna Orcid; Garacochea Sáenz, Amaia; Rodríguez García, Antonio Upna Orcid; Domínguez, Vidal; Montañez, Ana Carolina; Padilla, Germán D.; Pérez, Nemesio M. (2019)   Contribución a congreso / Biltzarrerako ekarpena  OpenAccess
      Supplying power to volcanic monitoring stations constitutes a challenge due to both the access difficulties and the acidic environment associated with volcanoes. ELECTROVOLCAN project is developing thermoelectric generators ...
    • Study of thermoelectric systems applied to electric power generation 

      Rodríguez García, Antonio Upna Orcid; González Vian, José Upna; Astrain Ulibarrena, David Upna Orcid; Martínez Echeverri, Álvaro Upna Orcid (Elsevier, 2009)   Artículo / Artikulua  OpenAccess
      A computational model has been developed in order to simulate the thermal and electric behaviour of the thermoelectric generators. This model solves the non linear system of equations of the thermoelectric and heat transfer ...
    • Thermoelectric-driven autonomous sensors for a biomass power plant 

      Rodríguez García, Antonio Upna Orcid; Astrain Ulibarrena, David Upna Orcid; Martínez Echeverri, Álvaro Upna Orcid; Gubía Villabona, Eugenio Upna Orcid; Sorbet Presentación, Francisco Javier Upna (Springer USTMSIEEE, 2013)   Artículo / Artikulua  OpenAccess
      This work presents the design and development of a thermoelectric generator intended to harness waste heat in a biomass power plant, and generate electric power to operate sensors and the required electronics for wireless ...
    • Zero-power-consumption thermoelectric system to prevent overheating in solar collectors 

      Martínez Echeverri, Álvaro Upna Orcid; Astrain Ulibarrena, David Upna Orcid; Rodríguez García, Antonio Upna Orcid (Elsevier, 2014)   Artículo / Artikulua  OpenAccess
      Highly promoted by the European Union Climate and Energy Package for 2020, solar collectors stand out as the most promising alternative to meet water heating demands. One of the most limiting problems in these systems ...

      El Repositorio ha recibido la ayuda de la Fundación Española para la Ciencia y la Tecnología para la realización de actividades en el ámbito del fomento de la investigación científica de excelencia, en la Línea 2. Repositorios institucionales (convocatoria 2020-2021).
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