Buscar
Mostrando ítems 1-10 de 12
On the extension of k-ω-SST corrections to predict flow separation on thick airfoils with leading-edge roughness
(Wiley, 2023)
Artículo / Artikulua,
Modern wind turbines employ thick airfoils in the outer region of the blade with strong adverse pressure gradients and high sensitivity to flow separation, which can be anticipated by leading-edge roughness. However, ...
Performance assessment of an experimental CO2 transcritical refrigeration plant working with a thermoelectric subcooler in combination with an internal heat exchanger
(Elsevier, 2022)
Artículo / Artikulua,
Regulations in the refrigeration sector are forcing the transition to low global warming potential fluids such as carbon dioxide in order to decrease direct greenhouse gases emissions. Several technologies have arisen over ...
Experimental analysis of one and two-stage thermoelectric heat pumps to enhance the performance of a thermal energy storage
(Elsevier, 2023)
info:eu-repo/semantics/article,
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 enhancement of a CO2 transcritical refrigerating plant including thermoelectric subcooling
(Elsevier, 2020)
info:eu-repo/semantics/article,
CO2 is an excellent natural refrigerant that can be used in almost any commercial cooling application thanks to its useful range of evaporative temperatures and excellent environmental properties. However, due to its low ...
Heat pipes thermal performance for a reversible thermoelectric cooler-heat pump for a nZEB
(Elsevier, 2019)
Artículo / Artikulua,
The nZEB standards reduce the energy demand of these buildings to a minimum, obtaining this little energy from renewable resources. Taking these aspect into consideration, a thermoelectric cooler-heat pump is proposed to ...
Computational study of geothermal thermoelectric generators with phase change heat exchangers
(Elsevier, 2020)
Artículo / Artikulua,
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 ...
Experimental evidence of the viability of thermoelectric generators to power volcanic monitoring stations
(MDPI, 2020)
Artículo / Artikulua,
Although there is an important lack of commercial thermoelectric applications mainly
due to their low efficiency, there exist some cases in which thermoelectric generators are the best
option thanks to their well-known ...
Assessing the reliability of current simulation of thermoelectric heat pumps for nearly zero energy buildings: expected deviations and general guidelines
(Elsevier, 2019)
info:eu-repo/semantics/article,
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 ...
Experimental evaluation of a transcritical CO2 refrigeration facility working with an internal heat exchanger and a thermoelectric subcooler: performance assessment and comparative
(Elsevier, 2022)
Artículo / Artikulua,
The use of carbon dioxide in transcritical state has become one of the most used solutions to comply with the F-Gas directive and reduce greenhouse gases emissions from refrigeration systems at high ambient temperatures. ...
Gamification and a low-cost laboratory equipment aimed to boost vapor compresion refrigeration learning
(OmniaScience, 2022)
info:eu-repo/semantics/article,
The nowadays European educational framework boosts applying the learned theoretical concepts to real situations. Hence, practice sessions are key resources to present students direct applications of the theoretical concepts ...