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Browsing by Author "Benajes Calvo, Jesus Vicente"

Now showing items 1-20 of 75

A computational analysis of the impact of bore-to-stroke ratio on emissions and efficiency of a HSDI engine

Benajes, Jesús; Novella Rosa, Ricardo; Pastor Enguídanos, José Manuel; Hernández-López, A.; Duverger, T. (Elsevier, 2017-11-01)

[EN] Research on combustion systems for Internal Combustion Engines (ICE) is guided by the necessity of improving engine efficiency while achieving the pollutant regulations. In this framework, this study identifies and ...
A new methodology for uncertainties characterization in combustion diagnosis and thermodynamic modelling

Benajes Calvo, Jesus Vicente; Olmeda González, Pablo Cesar; Martín Díaz, Jaime; Carreño Arango, Ricardo (Elsevier, 2014-10-05)

Combustion diagnosis based on in-cylinder pressure signals as well as 0D thermodynamic modelling, are widely used to study and optimize the combustion in reciprocating engines. Both approaches share some uncertainties ...
A RCCI operational limits assessment in a medium duty compression ignition engine using an adapted compression ratio

Benajes Calvo, Jesus Vicente; Pastor Soriano, José Vicente; García Martínez, Antonio; Boronat-Colomer, Vicente (Elsevier, 2016-10-15)

Reactivity Controlled Compression Ignition concept offers an ultra-low nitrogen oxide and soot emissions with a high thermal efficiency. This work investigates the capabilities of this low temperature combustion concept ...
Achieving clean and efficient engine operation up to full load by combining optimized RCCI and dual-fuel diesel-gasoline combustion strategies

Benajes, Jesús; García Martínez, Antonio; Monsalve-Serrano, Javier; Boronat-Colomer, Vicente (Elsevier, 2017-03-15)

[EN] This experimental work investigates the capabilities of the reactivity controlled compression ignition combustion concept to be operated in the whole engine map and discusses its benefits when compared to conventional ...
Advantages of hydrogen addition in a passive pre-chamber ignited SI engine for passenger car applications

Benajes, Jesús; Novella Rosa, Ricardo; Gómez-Soriano, Josep; Barbery-Avila, Ibrahim Ignacio; Libert, C. (John Wiley & Sons, 2021-07)

[EN] Hydrogen is one of the most promising alternative fuels for the transportation industry. The use of hydrogen to enable lean burn in internal combustion engines is an attractive solution for reducing CO2 emissions from ...
An assessment of the dual-mode reactivity controlled compression ignition/conventional diesel combustion capabilities in a EURO VI medium-duty diesel engine fueled with an intermediate ethanol-gasoline blend and biodiesel

Benajes Calvo, Jesus Vicente; García Martínez, Antonio; Monsalve Serrano, Javier; Balloul, Iyad; Pradel, Gerard (Elsevier, 2016-09-01)

This work investigates the capabilities of the dual-mode reactivity controlled compression ignition/conventional diesel combustion engine operation to cover the full operating range of a EURO VI medium-duty diesel engine ...
An experimental investigation on the influence of piston bowl geometry on RCCI performance and emissions in a heavy-duty engine

Benajes Calvo, Jesus Vicente; Pastor Soriano, José Vicente; García Martínez, Antonio; Monsalve Serrano, Javier (Elsevier, 2015-10)

This experimental work investigates the effects of piston bowl geometry on RCCI performance and emissions at low, medium and high engine loads. For this purpose three different piston bowl geometries with compression ratio ...
An investigation of partially premixed compression ignition combustion using gasoline and spark assistance

Benajes Calvo, Jesus Vicente; García Martínez, Antonio; Domenech Llopis, Vicente; Durret, Russell (Elsevier, 2013-04-15)

Nowadays the automotive scientific community and companies are focusing part of their efforts on the investigation of new combustion modes in Compression Ignition (Cl) engines, mainly based on the use of locally lean air ...
An Investigation of Radiation Heat Transfer in a Light-Duty Diesel Engine

Benajes Calvo, Jesus Vicente; Martín Díaz, Jaime; García Martínez, Antonio; Villalta Lara, David; Warey, Alok; Domenech Llopis, Vicente; Vassallo, Alberto Lorenzo; Vassallo (SAE International, 2015-09)

In the last two decades engine research has been mainly focused on reducing pollutant emissions. This fact together with growing awareness about the impacts of climate change are leading to an increase in the importance ...
An investigation on RCCI combustion in a heavy duty diesel engine using in-cylinder blending of diesel and gasoline fuels

Benajes Calvo, Jesus Vicente; Molina Alcaide, Santiago Alberto; García Martínez, Antonio; Belarte Mañes, Eduardo; Vanvolsem, Michel (Elsevier, 2014-02-05)

An experimental and numerical study has been carried out to understand mixing and auto-ignition processes in RCCI combustion conditions, using gasoline and diesel as low and high reactivity fuels, respectively. Three ...
An investigation on the particulate number and size distributions over the whole engine map from an optimized combustion strategy combining RCCI and dual-fuel diesel-gasoline

Benajes, Jesús; García Martínez, Antonio; Monsalve-Serrano, Javier; Boronat-Colomer, Vicente (Elsevier, 2017-05-15)

[EN] Literature demonstrates that, for premixed low temperature combustion concepts, particulate matter cannot be directly extrapolated from soot emissions measurements, as typically done for conventional diesel combustion. ...
Analysis of combustion concepts in a newly designed two-stroke high-speed direct injection compression ignition engine

Benajes Calvo, Jesus Vicente; Novella Rosa, Ricardo; De Lima Moradell, Daniela Andreina; Tribotté, Pascal (SAGE Publications, 2015-01)

[EN] Two research paths are being followed to develop compression ignition engines, the extreme optimization of the conventional diesel combustion concept and the development of alternative combustion concepts. The ...
Analysis of combustion concepts in a poppet valve two-stroke downsized compression ignition engine designed for passenger car applications

De Lima Moradell, Daniela Andreina (Universitat Politècnica de València, 2016-09-01)

[EN] The research work presented on this thesis has been performed in the framework of the development and optimization of the combustion system of a novel two-stroke CI engine, with a scavenging configuration through ...
Analysis of local extinction of a n-heptane spray flame using large-eddy simulation with tabulated chemistry

Benajes, Jesús; García-Oliver, José M; Pastor Enguídanos, José Manuel; Olmeda-Ramiro, Iván; Both, A.; Mira, D. (Elsevier, 2022-01)

[EN] This work is focused on the study of flame stabilization and local extinction of a spray flame in an atmospheric non-swirled test rig referred to as the CORIA Rouen Spray Burner. This burner shows a double reaction ...
Analysis of the combustion process, pollutant emissions and efficiency of an innovative 2-stroke HSDI engine designed for automotive applications

Benajes Calvo, Jesus Vicente; Novella Rosa, Ricardo; De Lima Moradell, Daniela Andreina; Tribotte, Pascal; Quechon, Nicolas; Obernesser, Philippe; Dugue, Vincent (Elsevier, 2013-09)

[EN] On the last years engine researchers has been focused on improving engine efficiency in order to decrease CO2 emissions and fuel consumption, while fulfilling the increasingly stringent pollutant emissions regulations. ...
ANALYTICAL AND EXPERIMENTAL INVESTIGATION OF MULTI-COMPONENT SURROGATE DIESEL FUELS

SZYMKOWICZ, PATRICK (Universitat Politècnica de València, 2017-11-03)

Diesel fuel is composed of a complex mixture of hundreds of hydrocarbons that vary globally depending on crude oil sources, refining processes, legislative requirements and other factors. In order to simplify the study ...
Assessment of Detailed Combustion and Soot Models for High-Fidelity Aero-Engine Simulations

Olmeda Ramiro, Iván (Universitat Politècnica de València, 2024-01-18)

[ES] En los últimos años, el interés por el desarrollo de motores de aviación limpios y eficientes se ha incrementado debido al impacto perjudicial sobre la salud y el medio ambiente ocasionado por los sistemas de combustión ...
Benchmarking and testing of genetic algorithms for aircraft trayectory optimisation studies

Marzal Espí, Ramón Manuel (Universitat Politècnica de València, 2013-06-07)

Proyecto Confidencial
Benefits of E85 versus gasoline as low reactivity fuel for an automotive diesel engine operating in reactivity controlled compression ignition combustion mode

Benajes, Jesús; García Martínez, Antonio; Monsalve-Serrano, Javier; Villalta-Lara, David (Elsevier, 2018)

[EN] This work shows the capabilities of E85 fuel to be used as low reactivity fuel in a high compression ratio light-duty diesel engine (17.1:1) running under reactivity controlled compression ignition concept. To do this, ...
Clean and efficient dual-fuel combustion using OMEx as high reactivity fuel: comparison to diesel-gasoline calibration

Benajes, Jesús; García Martínez, Antonio; Monsalve-Serrano, Javier; Lago-Sari, Rafael (Elsevier, 2020-07-15)

[EN] From previous results in a single-cylinder engine platform, it can be concluded that the dual-mode dual-fuel (DMDF) concept can be a potential solution to overcome the major constraints found with other single-fuel ...