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Listar por palabra clave "Refrigerants"

Mostrando ítems 1-10 de 10

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 ...
Análisis numérico y optimización mediante CFD de las prestaciones de un eyector dado en un ciclo de refrigeración para diferentes fluidos refrigerantes

Sainz Cuerda, Juan Ignacio (Universitat Politècnica de València, 2022-07-28)

[ES] El presente proyecto trata sobre el estudio que se ha realizado sobre una geometría de eyector definida por un ciclo dado de refrigeración. Se va a realizar un análisis numérico completo en CFD en el que se va a ...
Comparative experimental study of an open piston compressor working with R-1234yf, R-134a and R-290

Navarro-Peris, Emilio; Martínez Galván, Israel Octavio; Nohales Herraiz, Jesús Ángel; Gonzálvez Maciá, José (Elsevier, 2013-05)

Among the different alternatives proposed in the automotive field to replace R-134a and R-1234yf is a new generation fluid which has recently gained great importance for MAC (Mobile Air Conditioning) systems. This fluid ...
Diseño de tres cámaras frigoríficas de conservación y una de congelación para el almacenamiento de productos avícolas situada en la población de Hellín (Albacete)

Jordán Sánchez, Eusebio (Universitat Politècnica de València, 2018-09-11)

[ES] El objetivo del TFG es el de diseñar una instalación frigorífica para el almacenamiento de productos avícolas, frescos y congelados, calcular las cargas térmicas para estimar las necesidades de frío y dimensionar la ...
Diseño de una instalación frigorífica para la conservación de alimentos refrigerados y congelados con destino a un supermercado

Bernal Eyers, Luis Miguel (Universitat Politècnica de València, 2017-04-04)

[EN] The aim of the TFG is to design a refrigeration system for storing fresh and frozen products, calculate the thermal loads to estimate the cooling needs and size required to produce cold from electricity refrigerating ...
Influence of the source and sink temperatures on the optimal refrigerant charge of a water-to water heat pump

Corberán, José M.; Martínez Galván, Israel; Martínez-Ballester, Santiago; Gonzálvez-Maciá, José; Royo, Rafael (ELSEVIER SCI LTD, 2011)

[EN] This paper presents the results of a study carried out to elucidate the influence of the source and sink temperatures on the optimal charge of a propane water-to-water 16 kW heat pump which does not incorporate any ...
New non-dimensional performance parameters for the characterization of refrigeration compressors

Navarro-Peris, Emilio; Corberán Salvador, José Miguel; Falco, Luigi; Martínez Galván, Israel Octavio (Elsevier, 2013-11)

Pierre (1982) developed general correlations of compressor performance for a wide range of open piston compressors based on a vast amount of data provided by the most important open compressors manufacturers at that time. ...
Oil sump temperature in hermetic compressors for heat pump applications

Navarro-Peris, Emilio; Corberán Salvador, José Miguel; Martínez Galván, Israel Octavio; Gonzálvez Maciá, José (Elsevier, 2012-03)

The oil temperature in the compressor sump is an important parameter describing the performance of a refrigeration compressor. Its estimation is necessary for evaluation of the lubricant-refrigerant mixture composition and ...
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 ...
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 ...