Desantes, J.M.; Torregrosa, A. J.; Broatch, A.; Olmeda González, Pablo Cesar(Elsevier, 2011-01)
[EN] The present study tries to be a contribution for the development of more precise theoretical models for predicting the dissipation of heat through the combustion chamber walls of reciprocating (internal combustion) ...
[EN] The behavior of small turbochargers is deeply affected by heat transfer phenomena. The external heat losses of these machines are studied and a simplified model that takes into account both radiation and convective ...
This work presents a comparative assessment of engine oil performance on field test using urban transport vehicles powered by compressed natural gas engines using two different mineral oil formulations approved by engine ...
Serrano Cruz, José Ramón; Olmeda González, Pablo Cesar; Arnau Martínez, Francisco José; Dombrovsky, Artem(SAE International, 2014-10)
These days many research efforts on internal combustion engines are centred on optimising turbocharger matching and
performance on the engine. In the last years a number of studies have pointed out the strong effect on ...
Lujan Martinez, José Manuel; Climent Puchades, Héctor; Olmeda González, Pablo Cesar; Jiménez Macedo, Víctor Daniel(Elsevier, 2014-08)
Heat transfer from the hot gases to the wall in exhaust systems of high-performance two-stroke engines is underestimated using steady state with fully developed flow empirical correlations. This fact is detected when ...
Tomás Carrión, Raúl(Universitat Politècnica de València, 2020-07-27)
[ES] En este trabajo se presenta el modelo termohidráulico de un MCIA usado en un vehículo híbrido. El modelo se ha ajustado a partir de medidas experimentales en sala de ensayos. Asimismo se han elaborado modelos térmicos ...
The use of biodiesel fuels in diesel engines is gaining attention as a promising solution to control CO2
emissions. Great research efforts have been carried out to identify the impact of biodiesel physical and
chemical ...
[EN] One of the key strategies to reduce CO2 emissions is to improve the efficiency of engines in order to diminish fuel consumption. A way to increase engine efficiency is to reduce the heat losses. Internal heat transfer ...
Hernández Oñate, Víctor(Universitat Politècnica de València, 2016-07-21)
Con la implantación y explotación del software GMAO se ha conseguido disponer de mucha información de una forma clara, ordenada y fácil de extraer. Esto permitirá disponer de un historial completo de cada equipo, máquina ...
Aguilar Blasco, Nadal(Universitat Politècnica de València, 2016-12-30)
[ES] El presente trabajo fin de Máster, tiene por objeto el estudio y diseño del
plan de mantenimiento preventivo en el departamento de instalaciones de una
empresa dedicada a la fabricación de productos plásticos.
Una ...
López Guerrero, Carlos Néstor(Universitat Politècnica de València, 2013-02-20)
[ES] Este proyecto está orientado a la implementación de un RCM2, a los equipos del área de preparación de caña del Ingenio San Antonio, en Nicaragua. Este proyecto cuenta con 7 capítulos. En el primer capítulo se hace una ...
Serrano Cruz, José Ramón; Olmeda González, Pablo Cesar; Arnau Martínez, Francisco José; Reyes Belmonte, Miguel Ángel; Lefebvre, Alain(SAE International, 2013)
[EN] Nowadays turbocharging the internal combustion engine has become a key point in the reduction on pollutant emissions and the improvement on engine performance. The matching between the turbocharger and the engine is ...
Serrano Cruz, José Ramón; Olmeda González, Pablo Cesar; Tiseira Izaguirre, Andrés Omar; García-Cuevas González, Luis Miguel; Lefebvre, Alain(SAE International, 2013-06)
This work presents a study to characterize and quantify the
mechanical losses in small automotive turbocharging systems.
An experimental methodology to obtain the losses in the
power transmission between the turbine and ...
[EN] Several investigations related to increasing engine thermal efficiency focusing on the engine hydraulic circuits (oil and coolant) were performed over the last years. According to literature, more than 20% of the fuel ...
[EN] Exhaust temperature is a valuable parameter for engine control. However, measurement conditions at the engine exhaust and the slow dynamic response of temperature sensors difficult the determination of the instantaneous ...
[EN] New combustion concepts are being investigated to develop cleaner engines. One of the most promising is partially premixed combustion. The mechanisms of this combustion mode and its impact on performance and emissions ...
[ES] El objetivo del presente proyecto es la puesta en marcha de una instalación
termo-hidráulica para el estudio experimental de la transmisión de calor en motores
de combustión interna alternativos.
En concreto, en ...
[EN] Internal combustion engines are now extremely optimized, in such ways improving their performance is a costly task. Traditional engine improvement by experimental means is aided by engine thermodynamic models, reducing ...