すす堆積によるEGRクーラの性能劣化評価  [in Japanese] Evaluation of EGR-Cooler Performance Degradation Caused by Deposits  [in Japanese]

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Abstract

ディーゼル用EGRクーラのすす堆積による熱交換性能の劣化を評価した.らせん溝付の多管式EGRクーラを用い,JE05モードによるすす堆積試験を実施した.ホットスタート試験とコールドスタート試験の比較により,前者では低密度のすすが厚く堆積し,後者では高密度のすすが薄く堆積している事が判った.

In this study, degradation of heat transfer performance of multi-tube type EGR-cooler, which had spirally-grooved flow channel for exhaust gas, was evaluated by JE05 test mode. Cold start and hot start tests were conducted and deposition thickness after each test was measured. EGR-Cooler after cold start tests showed 10% degradation of thermal ratio and slight change of pressure loss. On the other hand, EGR-Cooler after hot start tests showed 37% degradation of thermal ratio and reduction of pressure loss. Deference of these results was assumed to be due to bulk density of deposit layer on heat transfer wall.

Journal

  • Transactions of Society of Automotive Engineers of Japan

    Transactions of Society of Automotive Engineers of Japan 44(4), 1009-1014, 2013

    Society of Automotive Engineers of Japan

Codes

  • NII Article ID (NAID)
    130006319244
  • NII NACSIS-CAT ID (NCID)
    AN00105913
  • Text Lang
    JPN
  • ISSN
    0287-8321
  • NDL Article ID
    024827443
  • NDL Call No.
    Z16-1092
  • Data Source
    NDL  J-STAGE 
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