India targets net-zero emissions for its shipping sector by 2070 and major ports by 2047. The 2022 marine fuel consumption was 1.24 million tonnes, projected to reach 1.43 million tonnes by 2030. Biofuel blend trials (B20-B50) showed 80-90% CO2 emission reductions. India’s bio-economy grew 16-fold to $165.7 billion by 2024. New guidelines permit biofuels, with […]
This $3.27M project, ending December 2024, aims to demonstrate a Near-Zero Emissions Concept via an integrated engine and aftertreatment simulation platform in GT-SUITE. Key achievements include calibrating an ORNL SCR model for catalyst aging (up to 500h aging data), and reducing computational cost for Urea-Water Solution (UWS) spray modeling to ~2000 CPU hours/second by using […]
This FY22-FY25 project, with $400k in FY24 funding, addresses toxic aldehyde emissions from low-lifecycle carbon fuels (LLCFs) in off-road engines. Alcohols like methanol and ethanol form less reactive aldehydes during oxidation. Stable formaldehyde delivery for experiments was achieved. In-situ DRIFTS analysis reveals highly stable formates/acetates on catalyst surfaces inhibit further oxidation, underscoring the critical need […]
This project, 35% complete with $3.8M total funding, is electrifying Articulated Dump Trucks (ADT) to reduce ~78% idling time, targeting over 20% fuel savings and 10,000+ metric tons GHG reduction. Dynamic System Modeling (DSM) predicts >12,000 hours battery life (project objective: 15,000 hours). Lab-scale 10kW soft-switched SiC inverters have been developed and tested at 50kHz. […]
This 50% complete project, with $2.99M total funding, aims to electrify Compact Track Loaders via Hybrid Hydraulic-Electric Architecture (HHEA). The objective is to reduce electricity usage by 40% and GHG footprint by 80%, leveraging off-the-shelf components. Simulations predict 31.78% to 42.50% overall energy savings, extending a 75kWh battery’s life by up to 74%. A fast-switching […]
This 60% complete project, funded at $3.125M, is developing a heavy-duty flex-fuel (E10-E98) engine with prechamber ignition to mimic diesel combustion. This approach promises ~50% reduction in lifecycle CO2 using bioethanol, maintaining snap torque and efficiency. Experimental results with E98 fuel demonstrate robust “diesel-like” performance, lower NOx, and “zero” soot compared to conventional diesel. The […]
This project, 38% complete with $2.98M total funding, targets ≥10% GHG and ≥90% NOx reduction (<0.04 g/kW-hr) for off-road powertrains by 2025. Key future engine technologies include cylinder deactivation and high-efficiency turbochargers, showing preliminary 10% CO2 reduction. Multiple aftertreatment configurations (e.g., dual SCR, e-heater, fuel burner) are being explored. An incremental cost analysis reveals a […]
This project, 33% complete with $400k in FY24 funding, aims to develop predictive chemistry and particle microphysics models for SAF contrail formation, a major climate impact driver (57.4 mW/m2 Effective Radiative Forcing). A multi-scale ice nucleation model is being constructed, using machine-learned molecular dynamics potentials that scale linearly for efficient simulation. The SAF Grand Challenge […]
This $550k (exp) + $175k (sim) FY24 project, running until 2027, focuses on X-ray diagnostics and high-fidelity CFD for SAF internal flow and atomization. Critical insights into as-built nozzle geometry (25 µm foreign object, micron-scale helical grooves) influencing spray morphology have been revealed. New window designs validate >150 bar performance for high-pressure experiments. A GPU-accelerated […]
This DOE-funded project, 60% complete with $450k in FY24 funding, investigates Sustainable Aviation Fuel (SAF) combustion and contrail formation, particularly linking soot to ice nucleation. Research shows aromatics produce 4-8 times more soot, with cyclo-alkane blends offering an 80% soot reduction compared to traditional jet fuel components. A desktop aero-engine reactor network provides rapid, accurate […]
