Open AccessThe Heat Transfer Study in the Diesel Engine Combustion Chamber Using a Two-Zone Combustion Model
Author(s) -
Brahim Menacer,
Khatir Naima,
Mostefa Bouchetara,
Ahmed Amine Larbi,
Cherif Belhout
Publication year - 2020
Publication title -
mathematical modelling and engineering problems/mathematical modelling of engineering problems
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.26
H-Index - 11
eISSN - 2369-0747
pISSN - 2369-0739
DOI - 10.18280/mmep.070414
Subject(s) - homogeneous charge compression ignition , external combustion engine , combustion chamber , internal combustion engine , diesel cycle , diesel engine , heat transfer , automotive engineering , exhaust gas recirculation , internal combustion engine cooling , combustion , fuel efficiency , diesel fuel , cylinder , mechanical engineering , thrust specific fuel consumption , petrol engine , mechanics , engineering , chemistry , physics , organic chemistry
The study of heat transfer phenomena in diesel engines is a very complex task considering the number of engine components such as intake and exhaust manifolds, lubricant oil and coolant subsystems, the different heat transfer mechanisms (conduction, convection, and radiation). This paper presents simulation results using a dual-zone model associated to GT-Suite simulation software for the calculation of convective heat transfer from gas to the cylinder wall, radiation heat transfer, gas pressure and temperature for low, partial and full load engine as a function of crank angle for a single-cylinder diesel engine. In this present article, a numerical simulation model was created to foresee the main combustion characteristics, and the simulated results were approved through the reference experiment data. Simulation results showed that any increase in the mass of fuel injected into the combustion chamber would generate a significant increase in the level of pressure and temperature of the combustion gases in the cylinder. This means that despite the improved power performance, excessive fuel consumption would have a negative effect on the thermal behavior and consequently on the life of the engine. The essential objective of any combustion engine development is to reduce fuel consumption while maintaining or improving the engine's power output.