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Browsing by Subject "Refrigeration"

Now showing items 21-36 of 36

Estudio, cálculo y optimización del sistema de climatización de un BMW X3 para la mejora de su rendimiento

Juan Micó, Oriol (Universitat Politècnica de València, 2022-07-08)

[ES] El siguiente proyecto que presento consiste en el diseño de una alternativa para el sistema de climatización de un vehículo. El vehículo en cuestión como se indica en el título es un BMW X3 del año 2007, con un ...
Evaluación de la influencia de la composición de diferentes piensos sobre la vida útil de dorada de acuicultura (Sparus aurata)

Díaz Pasquín, Irene (Universitat Politècnica de València, 2014-03-10)

[ES] El objetivo de este trabajo fue estudiar la influencia de la composición de diferentes piensos en la evolución de la calidad físico-química y microbiológica de doradas de piscifactoría almacenadas en refrigeración y ...
Experimental characterization of the refrigerant distribution along a finned tubes heat exchanger

Sánchez-Moreno-Giner, Luis; López-Juárez, Emilio; López-Navarro, Alejandro; Gonzálvez-Maciá, José (Universidad de Castilla-La Mancha José Antonio Almendros Ibáñez, 2019-06-14)

[EN] According to the European Commission, heating, cooling and domestic hot water (DHW) production imply 79% of the total energy consumed in households. Moreover, as 84% of this energy is still generated from fossil fuels, ...
Experimental drop-in replacement of R404A for warm countries using the low GWP mixtures R454C and R455A

Mota-Babiloni, Adrián; Haro-Ortuño, Jorge Ramiro; Navarro-Esbrí, J.; Barragán Cervera, Ángel (Elsevier, 2018-07)

[EN] This article presents an analysis of the feasibility of R454C and R455A, two new low global warming potential (GWP of 148) refrigerants, in vapor compression refrigeration systems as alternatives to R404A for warm ...
Experimental study of an R1234ze(E)/R134a mixture (R450A) as R134a replacement

Mota Babiloni, Adrián; Navarro Esbri, Joaquin; Barragán Cervera, Ángel; Moles Ribera, Francisco; Peris Pérez, Bernardo (Elsevier, 2015-03)

[EN] This work presents an experimental analysis of a non-flammable R1234ze(E)/R134a mixture (R450A) as R134a drop-in replacement. While R134a has a high GWP value (1430), the R450A GWP is only 547. The experimental tests ...
Feasibility Study of Jet-Ejector Refrigeration Systems as a Mechanism for Harnessing Low-Grade Thermal Energy from Different Sources

Ponce Mora, Alberto (Universitat Politècnica de València, 2022-04-04)

[ES] Los sistemas de refrigeración por eyección activados por calor de origen renovable o fuentes de calor residual tienen el potencial de alcanzar ahorros energéticos significativos al sustituir o asistir a los sistemas ...
Glutathione supplementation in semen extender improves rabbit sperm attributes during refrigeration

Ahmad, Ejaz; Naseer, Zahid; Aksoy, Melih (Universitat Politècnica de València, 2021-06-30)

[EN] In the present study, we evaluated the sustaining effect of various glutathione (GSH) concentrations in extender on rabbit sperm attributes during storage at 5°C for 24 h. Semen was collected from regular donor rabbit ...
Influence of thermal treatment and storage on astringency and quality of a spreadable product from persimmon fruit

Castelló Gómez, María Luisa; Heredia Gutiérrez, Ana Belén; Dominguez, E.; Ortolá Ortolá, Mª Dolores; Tarrazo Morell, José (Elsevier, 2011-09-15)

The aim of this work was to develop osmodehydrated products from cubes of persimmon (var. Rojo Brillante), which could be spread as a jam but keeping the typical aroma, flavour and colour of fresh fruit. The application ...
Oil type influence on the optimal charge and performance of a propane chiller

Martínez Galván, Israel; Gonzálvez-Maciá, José; Corberán, José M.; Royo, Rafael (Elsevier, 2011)

[EN] The paper presents the experimental results of a charge optimization study of a water-to-water chiller with two different oils: Mineral and POE. The employed chiller is a prototype which works with propane as refrigerant ...
Proyecto de Diagnóstico y Medidas Correctoras del Sistema de Refrigeración +7ºC - Bodegas Reymos

Ibáñez Gil, Adolfo (Universitat Politècnica de València, 2021-10-13)

[ES] El TFG contiene los trabajos realizados en la empresa Bodegas Reymos con el objetivo de mejorar el sistema de refrigeración de +7ºC debido a unos problemas de funcionamiento surgidos. En él se trata tanto la parte ...
Proyecto de una instalación frigorífica y de las cámaras de conservación y maduración de plátanos con un volumen total de 6000 m3 en Argelia

López de Ocáriz Olmos, Ignacio (Universitat Politècnica de València, 2018-10-02)

El presente proyecto consiste en el diseño de una instalación frigorífica para un almacén de conservación y maduración de plátanos en Argelia. Dicho almacén está divido en varias cámaras mediante panel aislante de sándwich ...
Quarantine cold treatment against Ceratitis capitata (Wiedemann) (Diptera: Tephritidae) to export clementine mandarins to Japan

Santaballa Lopez, Ernesto; Laborda Cenjor, Rafael; Cerdá, M. (Ministerio de Agricultura, Pesca y Alimentacion. Spain, 2009)

[EN] As a consequence of the presence in Spain of the Mediterranean fruit fly Ceratitis capitata (Wied), the export of citrus to countries which are exempt of this pest is restricted by plant quarantine regulations. A ...
Redesign for cooling and viability of manufacturing by casting of a 2 strokes engine

Martín Andueza, Julio (Universitat Politècnica de València, 2020-09-02)

[ES] El propósito de esta tesis de licenciatura es rediseñar y hacer funcionar el motor de 2 tiempos con el objetivo de diseñar un sistema de refrigeración incluido en el proceso de fundición y conseguir la menor cantidad ...
REFLAB: An interactive tool for supporting practical learning in the educational field of refrigeration

Cabello, R.; Llopis, R.; Sánchez, D.; Torrella Alcaraz, Enrique (Tempus Publications, 2011)

[EN] A new interactive tool for supporting practical learning in the educational field of refrigeration is presented in this paper. The application, called REFLAB, is used for on-line representation of the main operating ...
Theoretical comparison of low GWP alternatives for different refrigeration configurations taking R404A as baseline

Mota Babiloni, Adrián; Navarro Esbri, Joaquin; Barragán Cervera, Ángel; Moles Ribera, Francisco; Peris Pérez, Bernardo (Elsevier, 2014-08)

Six refrigerants are evaluated as low GWP replacements for R404A using different configurations, including two-stage system architectures. These refrigerants are selected according to similar characteristics to R404A, and ...
Theoretical energy performance evaluation of different single stage vapour compression refrigeration configurations using R1234yf and R1234ze(E) as working fluids

Molés Ribera, Francisco; Navarro Esbri, Joaquin; Peris Pérez, Bernardo; Mota Babiloni, Adrián; Barragán Cervera, Ángel (Elsevier, 2014-08)

R1234yf and R1234ze(E) have been proposed as alternatives for R134a in order to work with low GWP refrigerants, but this replacement results generally in a decrease of the performance. For this reason, it is interesting ...