In this article, a two-dimensional numerical model for a minichannel evaporator is implemented. This model takes into account the variation of wall temperature and moist air properties in both longitudinal and transverse ...
Hassan, Abdelrahman; Corberán, José M.; Ramirez, Miguel; Trebilcock-Kelly, Felipe; Payá-Herrero, Jorge(Elsevier, 2022-11)
[EN] The current paper presents the design and performance of a high-temperature heat pump (HTHP) integrated in an innovative, sensible, and latent heat storage system. The HTHP has been designed to work between a heat ...
[EN] In this paper, firstly, an innovative numerical model (Fin1D-MB) for wet fins of a minichannel evaporator was developed and verified. The proposed model is based on fin theory in conjunction with the moving boundary ...
Hassan, Abdelrahman Hussein Abdelhalim; Payá Herrero, Jorge; Albert Garcia, Jose Ramon(Universitat Politècnica de València, 2024-09-24)
El planeta se encamina cada vez más rápidamente hacia una economía neutra en carbono, por lo que cualquier solución que minimice la emisión de gases de efecto invernadero (GEIs) es un paso más hacia ese objetivo. Es por ...
[EN] This paper firstly presents a comprehensive minichannel evaporator model (MCHX-1D-MB) based on fin theory coupled with the moving boundary technique along fin height. To validate the presented model, experimental data ...
[EN] R290 is one of the most promising refrigerants for heat pumps and cooling processes working in a temperature range of -15 to 70°C. The nearly neglectable global warming potential and attractive thermodynamic properties ...
Hassan, Abdelrahman Hussein Abdelhalim(Universitat Politècnica de València, 2016-10-07)
[EN] In the first part of the current thesis, two fundamental numerical models (Fin2D-W and Fin1D-MB) for analyzing the air-side performance of minichannel evaporators were developed and verified. The Fin2D-W model applies ...
Sánchez Canales, V.; Payá-Herrero, Jorge; Corberán, José M.; Hassan, Abdelrahman(MDPI AG, 2020-09)
[EN] One of the main challenges for a further integration of renewable energy sources in the electricity grid is the development of large-scale energy storage systems to overcome their intermittency. This paper presents ...
Sánchez Canales, Violeta(Universitat Politècnica de València, 2019-09-03)
[ES] Uno de los principales retos en el contexto energético actual es la integración de las energías renovables (EERR) en la red eléctrica. Al contrario que los combustibles fósiles, las EERR dependen de las condiciones ...
[EN] This paper investigates, both experimentally and numerically, the performance of a high-temperature heat pump (HTHP) prototype for steam production and thermal energy storage applications using R-1233zd(E) as a ...
[EN] The industry is currently responsible for around 21% of the total CO2 emissions, mainly due to heat production with fossil fuel burners. There are already different technologies on the market that can potentially ...
Lindeman, Lukas; Sánchez-Canales, Violeta; O'Donoghue, Laura; Hassan, Abdelrahman; Corberán, José M.; Payá-Herrero, Jorge(Universidad de Castilla-La Mancha
José Antonio Almendros Ibáñez, 2019-06-14)
[EN] Energy storage is one of the bottlenecks to increase the share of renewable energy in electricity production. This paper presents an interesting solution, which is to produce heat at high temperature during times of ...
Lindeman, Lukas(Universitat Politècnica de València, 2018-10-02)
[ES] La transición energética hacia las energías renovables requiere de nuevas soluciones para el almacenamiento de energía, ya que las tecnologías de almacenamiento existentes están asociadas con desventajas como el tiempo ...
Hassan, Abdelrahman; O'Donoghue, Laura; Sánchez Canales, V.; Corberán, José M.; Payá-Herrero, Jorge; Jockenhoefer, Henning(Elsevier, 2020-12)
[EN] One of the bottlenecks for a wider implementation of renewable energies is the development of efficient energy storage systems which can compensate for the intermittency of renewable energy sources. Pumped thermal ...
[EN] The current paper studies the most suitable ultra-low-global warming potential (GWP) (GWP < 30) candidates in the market, considering also its grade of flammability and toxicity, for heat pumps employed for different ...
This paper presents a comparative study between the air-side heat transfer results of a two-dimensional numerical model for minichannel evaporators (Fin2D-W), and the results of the classical ε¿NTU approach. This study ...