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Combustion in Compression Ignition Engines

Introduction

This research line focuses on the optimization of efficiency and emissions in compression ignition (CI) engines when operating with both conventional and synthetic oxygenated fuels. The work combines advanced experimental techniques and numerical optimization strategies to investigate fuel injection, mixture formation, ignition control, and low-temperature combustion concepts. The ultimate aim is to maximize efficiency while reducing NOx and soot emissions, contributing to sustainable propulsion technologies.

Research Areas

  • tick Powertrain and e-component optimization in hybrid vehicles
  • tick Low-temperature combustion (LTC), HCCI, and PCCI operation
  • tick Impact of oxygenated and synthetic fuels on combustion and emissions
  • tick Trade-offs between soot and NOx in advanced CI operation
  • tick Multi-objective optimization combining experiments and simulation
  • tick Optical diagnostics and in-cylinder thermodynamic analysis
  • tick Evaluation of innovative CI hardware through optical diagnostic techniques and combustion diagnosis

Powertrain and e-component optimization in hybrid vehicles

GTAutoLion
GTAutoLion
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Conclusion
Conclusion
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Low-temperature combustion (LTC), HCCI, and PCCI operation

Comparision Engine speed and BMEP
Comparision Engine speed and BMEP
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Multi-Mode Dual Fuel
Multi-Mode Dual Fuel
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Average Cycle study
Average Cycle study
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Impact of oxygenated and synthetic fuels on combustion and emissions

OH and Soot compasion by using optical techiniques
OH and Soot compasion by using optical techiniques
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Trade-offs between soot and NOx in advanced CI operation

NOx and soot comparison Vs Diesel combustion under dual fuel combusiton
NOx and soot comparison Vs Diesel combustion under dual fuel combusiton
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Multi-objective optimization combining experiments and simulation

Optimization 2000 rpm @ 8 bar 1.6L Diesel engine following 3 different criteria
Optimization 2000 rpm @ 8 bar 1.6L Diesel engine following 3 different criteria
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Optical diagnostics and in-cylinder thermodynamic analysis

Skip fire operation
Skip fire operation
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Cycle resolved analysis. For each combustion cycle is analyzed individually, linked to its pressure trace and AHR and for NL SOC, OH* SOC, jet-jet interaction, flame impact on head surface, jet expansion…

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Evaluation of innovative CI hardware through optical diagnostic techniques and combustion diagnosis

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Tools

  • tick Optical CI engines and conventional test benches
  • tick Advanced diagnostics for combustion and emissions
  • tick DOE (Taguchi design), RSM, and digital twins for optimization

Collaborating Companies

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OEMs and Tier-1 suppliers in automotive and energy sectors

Recent Publications

Members