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

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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.

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Abbreviations

A :

Area (m2)

C* :

Capacity ratio

C p :

Specific heat at constant pressure (J/kg K)

T c :

Coolant temperature (°C)

T g :

Gas temperature (°C)

NTU :

Number of transfer units

\( \dot{m} \) :

Mass flow rate (kg/s)

Q :

Average heat transfer rate (W)

Q c :

Coolant side heat transfer rate (W)

Q g :

Gas side heat transfer rate (W)

ε :

Effectiveness

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Acknowledgments

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

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Authors and Affiliations

  1. Department of Mechanical Engineering, Graduate School of Hanyang University, Hanyang University, 1271 Sa1-dong, Sangrok-gu, Gyeonggi-do, 426-791, Korea

    Sangki Park

  2. Department of Mechanical Engineering, High Safety Vehicle Core Technology Research Center, Inje University, 607 Obang-Dong, Gimhae-si, Gyongsangnam-do, 621-749, Korea

    Kapseung Choi & Hyungman Kim

  3. Department of Mechanical Engineering, Hanyang University, 1271 Sa1-dong, Sangrok-gu, Gyeonggi-do, 426-791, Korea

    Kihyung Lee

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  1. Sangki Park
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  2. Kapseung Choi
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  3. Hyungman Kim
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  4. Kihyung Lee
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Correspondence to Hyungman Kim.

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Park, S., Choi, K., Kim, H. et al. Influence of PM fouling on effectiveness of heat exchanges in a diesel engine with fin-type EGR coolers of different sizes. Heat Mass Transfer 46, 1221–1227 (2010). https://doi.org/10.1007/s00231-010-0652-0

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  • DOI: https://doi.org/10.1007/s00231-010-0652-0

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