Article: 3D simulation to evaluate MTU4000 heavy-duty diesel engine power enhancement considering performance limitations and combustion improvement by reducing lean regions Journal: International Journal of Heavy Vehicle Systems (IJHVS) 2024 Vol.31 No.2 pp.222 - 246 Abstract: In this study, while maintaining the engine's dimensions, it has been tried to investigate the possibility of MTU 4000 R43L diesel engine power enhancement by raising the inlet fuel mass by using 3D simulation. Numerical simulation was performed using AVL Fire software. Fuel mass rise will have some challenges such as increasing the in-cylinder pressure and temperature, changing the combustion phasing, crossing performance constraints, knocking, vibrations, and noise. Therefore, in addition to fuel mass raising, some characteristics such as compression ratio (CR), the start of fuel injection timing (SOI), and piston bowl geometry have also been considered. The results showed that in order to increase the power of the engine by 5.8%, it is necessary to increase the mass of the input fuel by 10%. Also, for proper operation of the engine, it is necessary to have SOC = 9, CR = 16.5, and the piston geometry should be changed. Inderscience Publishers - linking academia, business and industry through research

Title: 3D simulation to evaluate MTU4000 heavy-duty diesel engine power enhancement considering performance limitations and combustion improvement by reducing lean regions

Authors: Saleh Talesh Amiri; Rouzbeh Shafaghat; Mostafa Mohebbi; Mohammad Ali Mahdipour

Addresses: Sea-Based Energy Research Group, Babol Noshirvani University of Technology, Babol, Mazandaran, 47148-71167, Iran ' Sea-Based Energy Research Group, Babol Noshirvani University of Technology, Babol, Mazandaran, 47148-71167, Iran ' Sea-Based Energy Research Group, Babol Noshirvani University of Technology, Babol, Mazandaran, 47148-71167, Iran ' Sea-Based Energy Research Group, Babol Noshirvani University of Technology, Babol, Mazandaran, 47148-71167, Iran

Abstract: In this study, while maintaining the engine's dimensions, it has been tried to investigate the possibility of MTU 4000 R43L diesel engine power enhancement by raising the inlet fuel mass by using 3D simulation. Numerical simulation was performed using AVL Fire software. Fuel mass rise will have some challenges such as increasing the in-cylinder pressure and temperature, changing the combustion phasing, crossing performance constraints, knocking, vibrations, and noise. Therefore, in addition to fuel mass raising, some characteristics such as compression ratio (CR), the start of fuel injection timing (SOI), and piston bowl geometry have also been considered. The results showed that in order to increase the power of the engine by 5.8%, it is necessary to increase the mass of the input fuel by 10%. Also, for proper operation of the engine, it is necessary to have SOC = 9, CR = 16.5, and the piston geometry should be changed.

Keywords: heavy-duty diesel engine; power density; CR; SOI; start of injection; piston bowl geometry.

DOI: 10.1504/IJHVS.2024.137249

International Journal of Heavy Vehicle Systems, 2024 Vol.31 No.2, pp.222 - 246

Received: 24 Dec 2021
Accepted: 29 Jan 2022
Published online: 07 Mar 2024 *

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Title: 3D simulation to evaluate MTU4000 heavy-duty diesel engine power enhancement considering performance limitations and combustion improvement by reducing lean regions

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