Listar Departamentos y Centros - Sailak eta Ikastegiak por autor UPNA "Astrain Ulibarrena, David"
Mostrando ítems 1-20 de 54
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Advanced phase-change intermediate heat exchanger development for multistage thermoelectric heat pumps
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 ... -
Assessing the reliability of current simulation of thermoelectric heat pumps for nearly zero energy buildings: expected deviations and general guidelines
This paper makes evident that a rigorous review of simulation methods for thermoelectric heat pumps in nearly-zero energy buildings is needed, as incoherent results during verification and validation of simulation models ... -
Auxiliary consumption: a necessary energy that affects thermoelectric generation
Waste heat recovery can apply to a wide range of applications, from transportation, or industries to domestic appliances. Thermoelectric generation technology applied to those cases could produce electrical energy and thus ... -
Computational and experimental study of a complete heat dissipation system using water as heat carrier placed on a thermoelectric generator
The heat dissipation systems which have liquids as heat carriers outperform conventional dissipation systems at thermoelectric generators (TEGs). However, new elements need to be introduced such as pumps, secondary heat ... -
Computational study of geothermal thermoelectric generators with phase change heat exchangers
The use of thermoelectric generators with phase change heat exchangers has demonstrated to be an interesting and environmentally friendly alternative to enhanced geothermal systems (EGS) in shallow hot dry rock fields ... -
Computational study on the thermal influence of the components of a thermoelectric ice maker on the ice production
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 ... -
Computer simulations of silicide-tetrahedrite thermoelectric generators
With global warming and rising energy demands, it is important now than ever to transit to renewable energy systems. Thermoelectric (TE) devices can present a feasible alternative to generate clean energy from waste heat. ... -
Corrosion behavior in volcanic soils: in search of candidate materials for thermoelectric devices
Thermoelectric generators have emerged as an excellent solution for the energy supply of volcanic monitoring stations due to their compactness and continuous power generation. Nevertheless, in order to become a completely ... -
Design and experimental development of thermoelectric generators for shallow geothermal anomalies of volcanic origin
En el contexto energético actual, caracterizado por un incesante aumento en el consumo de energía y una gran dependencia de los combustibles fósiles, resulta imprescindible apostar por sistemas eficientes y basados en ... -
Design and optimization of thermoelectric generators for harnessing geothermal anomalies: a computational model and validation with experimental field results
Thermoelectric generators have been recently proved to be a feasible alternative to harness hot dry rock fields with very promising results transforming the geothermal heat into electricity. This research deepens in the ... -
Development and experimental validation of a computational model in order to simulate ice cube production in a thermoelectric ice maker
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
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 ... -
Enhanced behaviour of a passive thermoelectric generator with phase change heat exchangers and radiative cooling
Heat exchangers are essential to optimize the efficiency of Thermoelectric Generators (TEGs), and heat pipes without fans have proven to be an advantageous design as it maintains the characteristic robustness of ... -
Enhancement of the power-to-heat energy conversion process of a thermal energy storage cycle through the use of a thermoelectric heat pump
The principal strategy for achieving a neutral climate entails enhancing the share of renewable energies in the energy mix, in conjunction with promoting innovation in efficient technologies. Thermal energy storage systems ... -
Enhancing engineering competencies curricula in the context of university-industry chairs
University-industry Chairs can play a key role to enhance the acquisition of certain curricular competencies of the Engineering Degrees such as teamwork capability, oral and written communication skills, entrepreneurship ... -
Estudio y optimización de los sistemas de intercambio de calor en generación termoeléctrica aplicada al aprovechamiento del calor residual
La presente tesis doctoral estudia el aprovechamiento del calor residual mediante generación termoeléctrica para la obtención de potencia eléctrica generada gracias al efecto Seebeck. Dos son las aproximaciones empleadas, ... -
Experimental analysis of one and two-stage thermoelectric heat pumps to enhance the performance of a thermal energy storage
This experimental study demonstrates the possibility to enhance the performance of a low-temperature thermal energy storage system (~160 ¿C) based on airflow heating using electrical heaters by including thermoelectric ... -
Experimental and computational study on thermoelectric generators using thermosyphons with phase change as heat exchangers
An important issue in thermoelectric generators is the thermal design of the heat exchangers since it can improve their performance by increasing the heat absorbed or dissipated by the thermoelectric modules. Due to its ... -
Experimental development of a novel thermoelectric generator without moving parts to harness shallow hot dry rock fields
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
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 ...