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Listar por palabra clave "Propane"

Mostrando ítems 1-20 de 21

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A propane water-to-water heat pump booster for sanitary hot water production: Seasonal performance analysis of a new solution optimizing COP

Tammaro, Marcello; Montagud Montalvá, Carla Isabel; Corberán Salvador, José Miguel; Mauro, Alfonso William; Mastrullo, R. (Elsevier, 2015-03)

[EN] Electrical heat pumps for sanitary hot water production achieve a high performance with a good matching of water and refrigerant temperature profiles during the heat rejection stage, as it happens in CO2 systems. ...
Análisis en banco motor de la eficiencia de conversión de un TWC empleando GLP y AutoGas como combustibles

Castro Espín, Mar (Universitat Politècnica de València, 2022-10-05)

[ES] Entre los grandes cambios que está viviendo el sector del transporte se encuentra el uso de combustibles de baja emisión de CO2, como el GLP con distintas proporciones de propano y butano. Dentro de este ensayo, este ...
Comparative analysis of modern energy systems for ice rinks

Hemati, Pendar (Universitat Politècnica de València, 2023-10-10)

[ES] Las pistas de hielo son edificios comerciales que consumen mucha energía, con un consumo medio anual de 1,000 MWh, la mayor parte de la cual se utiliza para cubrir las demandas simultáneas de calefacción y ...
Design and Analysis of Charge-Reduced Refrigerant Cycles Using R290

Schnabel, Lena; Methler, Timo; Hassan, Abdelrahman; Dankwerth, Clemens; Gonzálvez-Maciá, José (John Wiley & Sons, 2023-03)

[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 ...
Design of an ultra low temperature freezer for vaccine or other medical use using natural refrigerants

Bovaira Dalmau, José (Universitat Politècnica de València, 2022-09-22)

[ES] Resumen del trabajo: El objetivo del trabajo es diseñar un ultracongelador capaz de almacenar unos (150-200) litros de vacunas Pzizer a una temperatura en el rango de los (-85,-80) grados celcius utilizando un ciclo ...
Determining the characteristics of a Co-zeolite to be active for the selective catalytic reduction of NOx with hydrocarbons

Palomares Gimeno, Antonio Eduardo; Franch Martí, Cristina; Corma Canós, Avelino (Elsevier, 2011-11-01)

The aim of this work is to study the activity, for the selective catalytic reduction (SCR) of NOx with hydrocarbons, of different containing cobalt zeolites, with different typologies and compositions. It has been found ...
Estudio experimental de optimización de una bomba de calor agua-agua empleando propano como fluido de trabajo

Martínez Galván, Israel Octavio (Universitat Politècnica de València, 2008-10-13)

La tesis que a continuación se presenta surge como una respuesta práctica al problema medioambiental relacionado con el empleo de sustancias sintéticas como fluidos de trabajo en muchos de los equipos de climatización ...
Evaluation of different heat pump systems for sanitary hot water production using natural refrigerants

Pitarch, Miguel; Navarro-Peris, Emilio; Gonzálvez-Maciá, José; Corberán, José M. (Elsevier, 2017)

[EN] Heat pumps that work with a high degree of subcooling in subcritical systems have shown a significant margin of improvement when working with sanitary hot water applications. Recently, two different approaches ...
Evidence of a Cu2+-Alkane Interaction in Cu-Zeolite Catalysts Crucial for the Selective Catalytic Reduction of NO with Hydrocarbons

Moreno González, Marta; Palomares Gimeno, Antonio Eduardo; Chiesa, Mario; Boronat Zaragoza, Mercedes; Giamello, Elio; Blasco Lanzuela, Teresa (American Chemical Society, 2017)

[EN] The selective catalytic reduction of NOx with hydrocarbons (HC-SCR-NOx) on Cu-zeolites is an alternative for the depletion of NOx present in the exhaust gas of diesel engines. The role played by copper and the general ...
Experimental study of a subcritical heat pump booster for sanitary hot water production using a subcooler in order to enhance the efficiency of the system with a natural refrigerant (R290)

Pitarch, M.; Navarro-Peris, Emilio; Gonzálvez-Maciá, José; Corberán, José M. (Elsevier, 2017)

[EN] This paper presents the experimental results obtained from a new heat pump prototype for sanitary hot water production, in the application of heat recovery from water sources like sewage water or condensation loops ...
High capacity heat pump development for sanitary hot water production

Pitarch i Mocholí, Miquel (Universitat Politècnica de València, 2017-05-29)

Heat pumps have been identified as an efficient alternative to traditional boilers for the production of sanitary hot water (SHW). The high water temperature lift (usually from 10ºC to 60ºC) involved in this application ...
Impact of lubricant in the performance of variable speed heat pumps working with R290

Ossorio-Santiago, Rubén Josep; Navarro-Peris, Emilio; Barta, Riley B. (Elsevier, 2022-11)

[EN] Modulating the speed of the compressors and adapting its capacity to the required load has led to a decrease in the annual energy consumption in many applications. However, in the compressor, having adequate lubrication ...
Influence of the Nature of the Promoter in NiO Catalysts on the Selectivity to Olefin During the Oxidative Dehydrogenation of Propane and Ethane

Delgado Muñoz, Daniel; Sanchis, Rut; Solsona Espriu, Benjamin Eduardo; Concepción Heydorn, Patricia; López Nieto, José Manuel (Springer-Verlag, 2020-12)

[EN] A comparative study of the catalytic properties for the oxidation of C2-C3 alkanes and olefins has been carried out over unpromoted and M-promoted NiO catalysts (Me¿=¿K, La, Ce, al, Zr, Sn, Nb). The catalysts have ...
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 ...
MODELADO Y MONITORIZACIÓN DE UNA BOMBA DE CALOR DE PROPANO PARA EL ANÁLISIS DE CONTROL DEL SISTEMA

Mengod Bautista, Fernando (Universitat Politècnica de València, 2020-03-30)

[ES] El objetivo de este trabajo de fin de Master fue el análisis de rendimiento de un sistema de calor no convencional basado en una bomba de calor de propano. El trabajo se baso en la monitorización y posterior modelado ...
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 ...
Optimizing Reflux Synthesis Method of Mo-V-Te-Nb mixed oxide Catalysts for Light Alkane Selective Oxidation

Massó Ramírez, Amada; Ivars-Barceló, Francisco; López Nieto, José Manuel (Elsevier, 2020-10-01)

[EN] The investigation here presented studies the effect of the synthesis temperature (from 80 to 110 degrees C) and the time (from 1 to 4 days) employed to precipitate catalyst precursors by reflux method, on the ...
Preparation, characterization and catalytic behavior for propanepartial oxidation of Ga-promoted MoVTeO catalysts

Hernández Morejudo, Selene; Massó Ramírez, Amada; García-González, Esther; Concepción Heydorn, Patricia; López Nieto, José Manuel (Elsevier, 2015-09-05)

[EN] Two sets of Ga-promoted MoVTeO catalysts were synthesized hydrothermally and heat-treated at 600 degrees C in N-2: (i) materials prepared from gels with Mo/V/Te/Ga atomic ratios of 1/0.60/0.17/x (x=0-0.12) (A-series) ...
Reflux Method as a Novel Route for the Synthesis of MoVTeNbOx Catalysts for Selective Oxidation of Propane to Acrylic Acid

Ramli, Irmawati; Botella Asuncion, Pablo; Ivars Barceló, Francisco; Meng, Woi Pei; Zawawi, Siti Murni Mohamad; Ahangar, Hossein Abbastabar; Hernández Morejudo, Selene; López Nieto, José Manuel (Elsevier, 2011-06-01)

[EN] This work reports the applicability of reflux to the synthesis of Mo-V-Te-Nb-O metal oxide catalysts for the first time. The well-formed and defined orthorhombic M1 phase, i.e. Te2M20O57 (M = Mo, V, Nb), was found to ...
Seasonal performance assessment of sanitary hot water production systems using propane and CO2 heat pumps

Tammaro, M.; Montagud, C.; Corberán, J.M.; Mauro, A.W.; Mastrullo, R. (Elsevier, 2017)

[EN] This paper presents an experimental analysis and performance evaluation of a ground source heat pumpsystem providing heating/cooling to an office building, located at the Universitat Politècnica de Valènciain Spain. ...