Mathematical Validation of Optimized Design of EGR Cooler of CRDI Diesel Engine for NOx Emission Control using CFD Analysis

 International Journal of Engineering Trends and Technology (IJETT) © 2018 by IJETT Journal Volume-63 Number-1 Year of Publication : 2018 Authors : Rambhajan Prajapati, Vishal Achwal, Dr.Suman Sharma DOI :  10.14445/22315381/IJETT-V63P203

Citation

MLA Style: Rambhajan Prajapati, Vishal Achwal, Dr.Suman Sharma"Mathematical Validation of Optimized Design of EGR Cooler of CRDI Diesel Engine for NOx Emission Control using CFD Analysis" International Journal of Engineering Trends and Technology 63.1 (2018): 10-16.

APA Style:Rambhajan Prajapati, Vishal Achwal, Dr.Suman Sharma (2018). Mathematical Validation of Optimized Design of EGR Cooler of CRDI Diesel Engine for NOx Emission Control using CFD Analysis. International Journal of Engineering Trends and Technology, 63(1), 10-16.

Abstract
Euro 6 is a significant advancement with regard to NOx limits. The NOx limit declines from 0.18 g/ km to 0.08 g/km, a reduction of 56% as compared to Euro 5 norms. This has significant implications for control technologies, requiring for the first time the integration of emission control aftertreatment for NOX emissions like improvising exhaust gas recirculation (EGR) coolers. Exhaust Gas Recirculation coolers (EGR) have to withstand high thermal stresses due to large temperature gradients between the hot exhaust gas and the coolant. Two different designs of EGR coolers are analyzed using CFD technique to determine effectiveness. The design of EGR cooler is shell and tube type having single entry for coolant in first design and multiple entry for coolant in second design in which the coolant passes through the shell to cool down the exhaust gas inside tubes. The thermo-flow characteristics inside the EGR Cooler and surface temperature have been investigated also by using CFD code ANSYS CFX 14.0. Standard k-epsilon turbulence model is used for analysis.

Reference
[1] Simon Reifarth, EGR-Systems for Diesel Engines, Licentiate thesis KTH CICERO, TRITA – MMK 2010:01, ISSN 1400-1179, ISRN/KTH/MMK/R-10/01SE.
[2] Jaffar Hussain, K. Palaniradja, N. Alagumurthi, R. Manimaran, Effect of Exhaust Gas Recirculation (EGR) on Performance and Emission characteristics of a Three Cylinder Direct Injection Compression Ignition Engine, Alexandria Engineering Journal ,2012, (51), pp. 241– 247.
[3] B.Jothithirumal and E. James gunasekaran, Combined Impact of Biodiesel and Exhaust Gas Recirculation (EGR) on NOX Emission in Diesel Engine, ELSEVIER, Procedia Engineering, 2012, (38), pp.1457-1466.
[4] Deepak Agarwal, Shailendra Sinha, Avinash Kumar Agarwal, Experimental investigation of control of NOX emissions in biodiesel- fueled compression ignition engine, ELSEVIER, Renewable Energy, 2006,(31) pp. 2356–2369.
[5] B.De and R. S. Panua, An experimental study on performance and emission characteristics of vegetable oil blends with diesel in a direct injection variable compression ignition engine, ELSEVIER, Procedia Engineering, 2014, (90), pp. 431 – 438.
[6] Zhang R., Charles F., Ewing D., Chang J. S., and Cotton J. S., 2004, ?Effect of Diesel Soot Deposition on the Performance of Exhaust Gas Recirculation Cooling Devices,? SAE Technical Paper 2004-01-0122.

Keywords
EGR Cooler, NOx, CFD