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International Journal of Automotive Technology > Volume 21(2); 2020 > Article
International Journal of Automotive Technology 2020;21(2): 339-349.
doi: https://doi.org/10.1007/s12239-020-0032-9
RESEARCH ON THE INTEGRATED INTERCOOLER INTAKE SYSTEM OF TURBOCHARGED DIESEL ENGINE
Sheng Liu1, 2, Yangjun Zhang1
1Tsinghua University
2China North Engine Research Institute
PDF Links Corresponding Author.  Yangjun Zhang , Email. yjzhang@tsinghua.edu.cn
ABSTRACT
In order to improve the compactness and performance of the intake system of turbocharged diesel engines, an integrated intercooler intake system is provided. Porous media computational fluid dynamics (CFD) model is used to analyze the flow and heat exchange performance of the integrated intercooler. The flow resistance, pressure fluctuation, temperature and pressure distribution of integrated intercoolers with different structures are compared by CFD simulation. The simulation results show that the best performance is achieved by the structure with central air intake with a baffle. Experimental study has been carried out to investigate the steady and transient performance of diesel engine with the original or integrated intercooler intake system. The test results show that with the use of the integrated intercooler intake system, the brake specific fuel consumption can be reduced by 5.9 g/kW·h at the rated condition, and the response time is reduced by 20.4 % under medium speed loading process.
Key Words: Diesel engine, Intercooler, Intake system, Performance, CFD
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