Authors: Hesham Gaballa, Chaouki Habchi, Jean-Charles de Hemptinne, Gerard Mouokue

Published on: April 03, 2024

Impact Score: 8.0

Arxiv code: Arxiv:2404.02500

Summary

• What is new: This study introduces an advanced simulation of cavitation in heavy-duty fuel injectors using ammonia, focusing on the phase transition with minimal influence from dissolved gases like nitrogen.
• Why this is important: The need to reduce greenhouse gas emissions by exploring cleaner renewable fuels like ammonia for heavy-duty vehicles.
• What the research proposes: Using a fully compressible two-phase multi-component real-fluid model in the CONVERGE CFD solver to simulate cavitation formation with ammonia in fuel injectors.
• Results: The model successfully simulates the phase transition, showing cavitation pockets mainly consisted of ammonia vapor, unlike previous studies which focused on hydrocarbon fuels.

Technical Details

Technological frameworks used: CONVERGE CFD solver

Models used: Fully compressible two-phase multi-component real-fluid model (RFM), Carnot thermodynamic library

Data used: In-house generated thermodynamic table based on vapor-liquid equilibrium calculations

Potential Impact

Fuel injection systems manufacturers, renewable fuel producers, heavy-duty vehicle manufacturers, and companies aiming to reduce their carbon footprint.

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