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Browsing by Author "Hassan, Abdelrahman Hussein Abdelhalim"

Now showing items 1-12 of 12

A comparative study between a two-dimensional numerical minichannel evaporator model and a classical effectiveness-NTU approach under different dehumidifying conditions

Hassan, Abdelrahman Hussein Abdelhalim; Martínez Ballester, Santiago; Gonzálvez Maciá, José (Taylor & Francis, 2015-07-04)

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 ...
A high-temperature heat pump for compressed heat energy storage applications: Design, modeling, and performance

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 ...
A new moving boundary model for evaluating the performance of wet fins: Application to minichannel evaporators

Hassan, Abdelrahman-Hussein; Martinez-Ballester, Santiago; Gonzálvez-Maciá, José (Elsevier, 2017)

[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 ...
Comparison of different modeling approaches for minichannel evaporators under dehumidification

Hassan, Abdelrahman-Hussein; Martinez-Ballester, Santiago; Gonzálvez-Maciá, José (Springer-Verlag, 2019-10)

[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 ...
Development and Validation of a Minichannel Evaporator Model under Dehumidification

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 ...
Dynamic Modelling and Techno-Economic Assessment of a Compressed Heat Energy Storage System: Application in a 26-MW Wind Farm in Spain

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 ...
Dynamic Modelling of a Compressed Heat Energy Storage System (CHEST)

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 ...
Thermodynamic analysis of a high temperature heat pump coupled with an organic Rankine cycle for energy storage

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 ...
Thermodynamic Analysis of a High Temperature Heat Pump coupled with an Organic Rankine Cycle for Energy Storage

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 ...
Thermodynamic analysis of high-temperature pumped thermal energy storage systems: Refrigerant selection, performance and limitations

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 ...
Thermodynamic assessment of ultra-low-global warming potential refrigerants for space and water heaters

Sánchez-Moreno-Giner, Luis; López-Juárez, Emilio; Gonzálvez-Maciá, José; Hassan, Abdelrahman (Begell House Inc., 2020)

[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 ...
Two-dimensional numerical modeling for the air-side of minichannel evaporators accounting for partial dehumidification scenarios and tube-to-tube heat conduction

Hassan, Abdelrahman Hussein Abdelhalim; Martínez Ballester, Santiago; Gonzálvez Maciá, José (Elsevier, 2016-07)

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 ...