Hello, A new project on the LCRC cluster has been requested. Please forward the information on to the LCRC Allocation sub-committee. Applicant's name: Riccardo Scarcelli Applicant's institution: ANL Applicant's division: ES Project Name: GDI_lean_burn Project title: Investigation of advanced, high-efficiency, lean-burn gasoline combustion Associated funding: DOE - Office of Vehicle Technologies Other Systems: Science: This project focuses on ultra-lean burn gasoline combustion with focus on ignition system aspects and their effects on combustion behavior. This activity directly addresses the barrier of robust lean-burn and EGR-diluted combustion technology and controls, especially relevant to the growing trend of boosting and down-sizing engines as outlined in the U.S. DRIVE Advanced Combustion and Emissions Control Tech Team (ACEC) Roadmap. Project description: Specific tasks designed to mitigate this barrier include a comprehensive understanding of intake air flow, evolution of the fuel spray, ignition, combustion and emissions formation mechanisms, and their interaction with chamber/piston geometry and fuel injection strategies over a wide operating range as well as a systematic investigation of new ignition systems. 3D-CFD simulation will provide proper insight into the experimental results and offer guidance for improvements. Following the homogeneous operation, basic stratification strategies will be proposed through CFD and evaluated experimentally. Upon completion of the baseline engine assessment the focus will be shifted towards evaluation of advanced ignition systems.Improved combustion stability as well as potential extension of lean operating limits are going to be the key criteria for the assessment of advanced ignition systems. Given the different performance variables of these advanced ignition systems (ignition energy, location of ignition, multi-pulse etc.), 3D-CFD simulation will play a key role in determining engine operating parameters to fully utilize the potential of each advanced ignition system. CFD simulations will be performed with CONVERGE Project URL: Requested allocation: 210000 Q1: 0 Q2: 70000 Q3: 70000 Q4: 70000 Justification: The requester has used undetermined amount hours of their initial startup project. In addition to approving an initial amount, please specify a Category and Subcategory for this project. For a list of the current selection of approved categories, please see: https://wiki.lcrc.anl.gov/wiki/Processes/Categories Once the Allocation committee has approved the project, please go to the Project Management page to create it: https://accounts.lcrc.anl.gov/projects.php Thank You, The LCRC Accounts System