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Browsing by Subject "Numerical modeling"

Now showing items 1-16 of 16

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 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 ...
Análisis de la respuesta frente al fuego de puentes mixtos multijácena

Alós Moya, José (Universitat Politècnica de València, 2019-12-21)

[ES] El diseño de puentes, a diferencia de lo que ocurre con el diseño de edificios o con el diseño de túneles ha dejado de lado la consideración de la acción del fuego hasta la fecha. Este vacío normativo, combinado con ...
Development of a Virtual CFR Engine Model for Knocking Combustion Analysis

Pal, Pinaki; Kolodziej, Christopher; Choi, Seungmok; Som, Sibendu; Broatch, A.; Gómez-Soriano, Josep; Wu, Yunchao; Lu, Tianfeng; See, Yee Chee (SAE International, 2018)

[EN] Knock is a major bottleneck to achieving higher thermal efficiency in spark-ignited (SI) engines. The overall tendency to knock is highly dependent on fuel anti-knock quality as well as engine operating conditions. ...
FEM Analysis Considering stiffness of 3 Stepped Bracket Complex for ENGAKUJI SHARIDEN as a Historical Wooden Structure in Japan

TAKASHIMA, Hideyuki (Editorial Universitat Politècnica de València, 2009-12-01)

Engaku Temple has been built at Kamakura City nearby Yokohama in 1285. The SHARIDEN is one of the facitilies there in order to store the Buddha's bone and has been selected as Japanese national treasure. However, most ...
Impact of Employing Hybrid Nanofluids as Heat Carrier Fluid on the Thermal Performance of a Borehole Heat Exchanger

Javadi, Hossein; Urchueguía Schölzel, Javier Fermín; Ajarostaghi, Seyed Soheil Mousavi; Badenes Badenes, Borja (MDPI AG, 2021-05)

[EN] In this numerical study, 4 types of hybrid nanofluid, including Ag-MgO/water, TiO2-Cu/water, Al2O3-CuO/water, and Fe3O4-multi-wall carbon nanotube/water, have been considered potential working fluid in a single U-tube ...
Mathematical modeling of microwave liver ablation with a variable-porosity medium approach

Tucci, Claudio; Trujillo Guillen, Macarena; Berjano, Enrique; Iasiello, Marcello; Andreozzi, Assunta; Vanoli, Giuseppe Peter (Elsevier, 2022-02)

[EN] Background and objectives: Thermal ablation of tumors plays a key role to fight cancer, since it is a minimally invasive treatment which involves some advantages compared to surgery and chemotherapy, such as shorter ...
Methodology for estimating the probability of failure by sliding in concrete gravity dams in the context of risk analysis

Altarejos García, Luis; Escuder Bueno, Ignacio; Serrano Lombillo, Armando José; Gómez de Membrillera Ortuño, Manuel (Elsevier, 2012-07)

Dam safety based on risk analysis methodologies demand quantification of the risk of the dam-reservoir system. This means that, for a given initial state of the system, and for the several failure modes considered, it is ...
Modeling aquifer-river interactions under the influence of groundwater abstraction in the Mancha Oriental System (SE Spain)

Sanz, David; Castano, Santiago; Cassiraga ., Eduardo Fabián; Sahuquillo Herráiz, Andrés; Gomez-Alday, J.J.; Peña Haro, Salvador; Calera, Alfonso (SPRINGER, 2011)

The Mancha Oriental System (MOS, 7,260 km2) is one of the largest aquifers within Spain, and is encompassed by the Jucar River Basin. Over the past 30 years, socioeconomic development within the region has been largely due ...
Numerical modeling of ground thermal response with borehole heat exchangers connected in parallel

Monzó Cárcel, Patricia María; Puttige, Anjan Rao; Acuña, José; Mogensen, Palne; Cazorla-Marín, Antonio; Rodríguez, Juan; Montagud, C.; Cerdeira, Fernando (Elsevier, 2018)

[EN] With bore fields for energy extraction and injection, it is often necessary to predict the temperature response to heat loads for many years ahead. Mathematical methods, both analytical and numerical, with different ...
Numerical Modeling of Groundwater Pollution by Chlorpyrifos, Bromacil and Terbuthylazine. Application to the Buñol-Cheste Aquifer (Spain)

Pérez-Indoval, Ricardo; Rodrigo-Ilarri, Javier; Cassiraga, Eduardo Fabián; Rodrigo-Clavero, María-Elena (MDPI AG, 2021-04)

[EN] Chlorpyrifos, Bromacil and Terbuthylazine are commonly used as insecticides and herbicides to control weeds and prevent non-desirable growth of algae, fungi and bacteria in many agricultural applications. Despite their ...
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 ...
Upscaling of water flow and mass transport in a tropical soil: numerical, laboratory and field studies

Almeida de Godoy, Vanessa (Universitat Politècnica de València, 2018-05-21)

Los modelos numéricos son herramientas fundamentales para realizar predicciones de muchos problemas enfrentados por ingenieros geotécnicos y geoambientales. Sin embargo, para que estos modelos puedan realizar predicciones ...
Using downscaled NCEP/NCAR reanalysis data for wind resource mapping

Bayón Barrachina, Arnau; van Beek, Jeroen; Martínez Alzamora, Fernando; López Jiménez, Petra Amparo (International Energy and Environment Foundation, 2014)

[EN] Two problems arise when estimating numerically wind energy resources, namely: The low resolution of global-scale atmospheric models and the scarcity of meteorological observations to be used as boundary conditions for ...
Valencia bridge fire tests: Validation of simplified and advanced numerical approaches to model bridge fire scenarios

Alós-Moya, José; Paya-Zaforteza, Ignacio; Hospitaler Pérez, Antonio; Loma-Ossorio, E. (Elsevier Applied Science., 2019)

[EN] Bridge fires are a major concern and the subject of many studies that use numerical models. However, experimental studies are still required to test the validity of these numerical models and improve their accuracy. ...