Analysis of the energy balance during world harmonized light vehicles test cycle in warmed and cold conditions using a virtual engine

P Olmeda, J Martin, FJ Arnau… - International Journal of …, 2020 - journals.sagepub.com
In recent years, the interests on transient operation and real driving emissions have
increased because of the global concern about environmental pollution that has led to new …

Challenges and Directions of using ammonia as an alternative fuel for internal combustion engines

R Novella, J Pastor, J Gomez-Soriano, JS Bayona - 2023 - sae.org
In recent decades, the importance of emerging alternative fuels has increased significantly
as a solution to the problems of global warming and air pollution from energy production. In …

Oxy-fuel combustion feasibility of compression ignition engines using oxygen separation membranes for enabling carbon dioxide capture

JR Serrano, FJ Arnau, LM García-Cuevas… - Energy Conversion and …, 2021 - Elsevier
Oxy-fuel combustion concept is studied in a compression ignition engine (CIE) using Mixed
Ionic-electronic Conducting Membranes (MIECs) to separate oxygen (O 2) from air in order …

[HTML][HTML] Design of a carbon capture system for oxy-fuel combustion in compression ignition engines with exhaust water recirculation

JM Luján, FJ Arnau, P Piqueras, VH Farias - Energy Conversion and …, 2023 - Elsevier
The oxy-fuel combustion engine concept with onboard oxygen generation and carbon
capture (CC) is studied using as a starting point a baseline oxy-fuel combustion layout …

[HTML][HTML] A strategy to extend load operation map range in oxy-fuel compression ignition engines with oxygen separation membranes

FJ Arnau, G Bracho, LM García-Cuevas… - Applied Thermal …, 2023 - Elsevier
The possibility of applying oxy-fuel combustion to a compression ignition engine (CIE) at
different operating points regarding engine speed and load is studied in this work. To do so …

[HTML][HTML] Experimental COP optimization procedure in an air-based reverse Brayton cycle for cryogenic applications

JR Serrano, LM García-Cuevas… - Applied Thermal …, 2024 - Elsevier
Sustainable and efficient refrigerants are essential due to increasing regulatory constraints
on traditional high-GWP refrigerants. This study investigates the potential of natural …

Improvement in engine thermal management by changing coolant and oil mass

A Broatch, P Olmeda, J Martín, A Dreif - Applied Thermal Engineering, 2022 - Elsevier
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 …

[HTML][HTML] Advanced exergy analysis of a Reverse Brayton cycle using air as working fluid for cryogenic purposes

JR Serrano, V Dolz, A Gómez-Vilanova… - International Journal of …, 2024 - Elsevier
The global push to reduce greenhouse gas emissions has led to the ban of high global
warming potential (GWP) refrigerants in the refrigeration sector, prompting the adoption of …

Diesel engine optimization and exhaust thermal management by means of variable valve train strategies

FJ Arnau, J Martin, B Pla… - International Journal of …, 2021 - journals.sagepub.com
Due to the need to achieve a fast warm-up of the after-treatment system in order to fulfill the
pollutant emission regulations, a growing interest has arisen to adopt variable valve timing …

Development of an oxy-fuel combustion system in a compression-ignition engine for ultra-low emissions powerplants using CFD and evolutionary algorithms

JR Serrano, G Bracho, J Gomez-Soriano… - Applied Sciences, 2022 - mdpi.com
This study uses an optimization approach for developing a combustion system in a
compression–ignition engine that is able to operate under oxy-fuel conditions, and produces …