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Heat and Mass Transfer

, Volume 46, Issue 11–12, pp 1221–1227 | Cite as

Influence of PM fouling on effectiveness of heat exchanges in a diesel engine with fin-type EGR coolers of different sizes

  • Sangki Park
  • Kapseung Choi
  • Hyungman KimEmail author
  • Kihyung Lee
Technical Note

Abstract

The particulate matter (PM) fouling in exhaust gas recirculation (EGR) coolers degrades the heat transfer performance considerably, which in turn has a significant influence on the design of the EGR cooler. To investigate the effects of PM fouling on the heat exchange effectiveness in the fin-type EGR coolers of six different sizes, engine dynamometer experiments were performed. The experimental results show that the heat exchange effectiveness varies with the size of the fin-type EGR cooler.

Keywords

Brake Mean Effective Pressure Engine Dynamometer Heat Exchange Effectiveness High Heat Transfer Performance Enhance Heat Resistance 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

List of symbols

A

Area (m2)

C*

Capacity ratio

Cp

Specific heat at constant pressure (J/kg K)

Tc

Coolant temperature (°C)

Tg

Gas temperature (°C)

NTU

Number of transfer units

\( \dot{m} \)

Mass flow rate (kg/s)

Q

Average heat transfer rate (W)

Qc

Coolant side heat transfer rate (W)

Qg

Gas side heat transfer rate (W)

ε

Effectiveness

Notes

Acknowledgments

This work was supported by the 2009 Inje University research grant.

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Copyright information

© Springer-Verlag 2010

Authors and Affiliations

  • Sangki Park
    • 1
  • Kapseung Choi
    • 2
  • Hyungman Kim
    • 2
    Email author
  • Kihyung Lee
    • 3
  1. 1.Department of Mechanical Engineering, Graduate School of Hanyang UniversityHanyang UniversitySangrok-guKorea
  2. 2.Department of Mechanical Engineering, High Safety Vehicle Core Technology Research CenterInje UniversityGimhae-siKorea
  3. 3.Department of Mechanical EngineeringHanyang UniversitySangrok-guKorea

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