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Study on Diesel Spray Combustion by the aid of newly Developed Single compression Machine

Research Project

Project/Area Number 60850040
Research Category

Grant-in-Aid for Developmental Scientific Research

Allocation TypeSingle-year Grants
Research Field Thermal engineering
Research InstitutionKyushu University

Principal Investigator

YUTARU WAKURi  Prof. Kyushu University, 工学部, 教授 (80037704)

Co-Investigator(Kenkyū-buntansha) KOJI TAKASAKI  Associate Prof. Kyushu University, 工学部, 助教授 (30154769)
村瀬 英一  九州大学, 工学部, 助教授 (60150504)
城戸 裕之  九州大学, 工学部, 教授 (50037959)
SHINSUKE ONO  Prof. Kyushu University, 工学部, 教授 (80037738)
EIICHI MURASE  Associate Prof. Kyushu University
HIROYUKI KIdO  Proc. Kyushu University
Project Period (FY) 1985 – 1987
Project Status Completed (Fiscal Year 1987)
Budget Amount *help
¥8,300,000 (Direct Cost: ¥8,300,000)
Fiscal Year 1987: ¥500,000 (Direct Cost: ¥500,000)
Fiscal Year 1986: ¥2,500,000 (Direct Cost: ¥2,500,000)
Fiscal Year 1985: ¥5,300,000 (Direct Cost: ¥5,300,000)
KeywordsDiesel Engine / Fuel Sptey / Single Compression Mchine / Fuel Injection System / Spray Combustion / 高圧噴射 / 燃料噴霧
Research Abstract

(1) A new type of single compression machine has been developed to investigate basic aspects of the diesel combustion phenomenon. The mechanism of a single compression is different from the usual repid comprtession machines, i.e., a crank mechanism is used tgo make a steady reciprocating motion of the piston and a single compression state can be made without any mechanical impact.
(2) The influences of the surrounding air pressure P_c, the temperature T_c, the fuel injection pressure, and the swirl flow on the ignition deley <tau> are investigated, and <tau>can be expressed satisfactorily by the following expression
<tau>= AP^B_exp(C/T_c) where A, B, and C are constants. within the range of the experiment, there is no noteworthy differnce in the ignition delay with injection pressure above 20 MPa.
(3) The coefficient of heat release rate of spray combustion <eta> is definesd to investigate the factors which affect a period of initial stage of spray combustion. Within the range of the experiment, <ata> increases with incresases in the surrounding temperature and pressure, howeve, there is no marked difference in <ata> with changes of injection pressure.
(4) From the photographic observations (high-speed shadowgraphs), teajectories of fuel spray, ignition points, and combustion phenomena were revealed clearly, and the results correpsond with the results from the analsys of the combustion pressures.

Report

(3 results)
  • 1987 Final Research Report Summary
  • 1986 Annual Research Report
  • 1985 Annual Research Report

Research Products

(22 results)

All Other

All Publications

  • [Publications] Yutaro WAKURI: Proc. Int. Symp. on Diagno. and Modeling of Comb. in Reciprocating Engines. 363-372 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 和栗雄太郎: 日本機械学会論文集. 51. 4109-4116 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yutaro WAKURI: Mem. Fac. Eng. Kyushu Univ.45. 273-290 (1985)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 和栗雄太郎: 九大工学集報. 59. 701-707 (1986)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] 和栗雄太郎: 日本機械学会論文集. 53. 2679-2685 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yitaro WAKURI: Mem. Fac. Eng. Kyushu Univ.325-337 (1987)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yutaro WAKURI: "Studies on Combustion of Fuel Spray Injected from Constant Pressure System with Single Compression Machine" Proceedings of International Symposium on Diagnostics and Modeling of Combustion in Reciprocsting Engines. 363-372 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yutaro WAKURI: "Ignition Delay and Initial Heat Release Rate of Diesel Spray Combustion in Single Compression Machins" Memoirs of the Faculty of Engineering Kyushu University. 45-5. 273-290 (1985)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yutaro WAKURi: "Influences of Ait Motion on Combustion Characteristics on A Samall-Sized, Direct-Injection-Type Diesel Engine" Technology Reports of the Kyushu University. 59-5. 701-707 (1986)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yurato WAKURi: "Studies on an Accumulation-Type Fuel Injection System (Investigation of Injection Characterstics)" Trans. Japan Soc. Mech. Engrs.53. 2679-2685 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yutaro WAKURI: "Studies on a Newly Developed Accumulator-Type Fuel Injection System" Memoirs of the Faculty of Engineering Kyushu University. 47. 325-337 (1987)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1987 Final Research Report Summary
  • [Publications] Yutaro WAKURI: Proceedings of International Symposium on Diagnostics and Modeling of Combustion in Reciprocating Engines. 363-372 (1985)

    • Related Report
      1986 Annual Research Report
  • [Publications] Yutaro WAKURI: Memoirs of the Faculty of Engineering Kyushu University. 273-290 (1985)

    • Related Report
      1986 Annual Research Report
  • [Publications] 和栗雄太郎: 日本機械学会講演論文集. 868-2. 40-42 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] 和栗雄太郎: 九大工学集報. 59-5. 701-707 (1986)

    • Related Report
      1986 Annual Research Report
  • [Publications] 楊延相: 第6回内燃機関合同シンポジウム講演論文集. 17-22 (1987)

    • Related Report
      1986 Annual Research Report
  • [Publications] 和栗雄太郎: 日本機械学会論文集.

    • Related Report
      1986 Annual Research Report
  • [Publications] 日本機械学会論文集. 51-463. (1985)

    • Related Report
      1985 Annual Research Report
  • [Publications] 日本機械学会論文集. 51-466. (1985)

    • Related Report
      1985 Annual Research Report
  • [Publications] 日本機械学会論文集. 51-472. (1985)

    • Related Report
      1985 Annual Research Report
  • [Publications] Mem.Fac.Eng.kyushu Univ.45-1. (1985)

    • Related Report
      1985 Annual Research Report
  • [Publications] 日本機械学会論文集. 51-461. (1985)

    • Related Report
      1985 Annual Research Report

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Published: 1987-03-30   Modified: 2016-04-21  

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