Journal of the Japan Institute of Energy
New Arrival Alert : OFF

You can use this feature after you logged into the site.
Please click the button below.

Log in / Sign up
ONLINE ISSN: 1882-6121
PRINT ISSN: 0916-8753

Journal of the Japan Institute of Energy Vol. 80 (2001), No. 2

  • Ignition Characteristics of Dimethyl Ether Injected by a D.I. Diesel Nozzle

    pp. 87-96

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.3775/jie.80.87

    Experiments were performed to clarify the ignition characteristics of dimethyl ether (DME) injected by a D.I. diesel injector into a high-pressure, high-temperature vessel. Ambient air pressure, temperature, oxygen concentration and nozzle valve opening pressure were changed as experimental parameters. The results clarify the differences between the DME and a conventional diesel fuel in the ignition characteristics such as flame luminosity characteristics and ignition delay. A non-luminous flame is observed in the ignition process of the DME spray. In the case of ordinary air (oxygen concentration 21%), the ignition delay for the DME spray is almost the same as the diesel fuel spray under a high ambient pressure, whereas under a low ambient pressure, the ignition delay for the DME spray is shorter than the diesel fuel spray. In the case of low oxygen concentration, the ignition delay for the DME spray is shorter than the diesel fuel spray under high ambient pressure as well as low ambient pressure. The effect of the nozzle valve opening pressure on the ignition delay is very small for the DME spray, whereas the ignition delay for the diesel fuel spray is increased with decrease in the valve opening pressure.
    x

    Readers Who Read This Article Also Read

    1. Influence of Heating Rate during Pyrolysis on Gasification Reactivity of Coal Chars at High Temperatures Journal of the Japan Institute of Energy Vol.79(2000), No.11
    2. Measurements of Gas Diffusion in Supercritical Water Journal of the Japan Institute of Energy Vol.79(2000), No.11
    3. Effective Use of Unutilized Energy Journal of the Japan Institute of Energy Vol.79(2000), No.11
  • Nitrogen Functionality in Model Coals and Its Fate during Pyrolysis

    pp. 97-105

    Bookmark

    You can use this feature after you logged into the site.
    Please click the button below.

    Log in / Sign Up

    DOI:10.3775/jie.80.97

    In order to study nitrogen release from different nitrogen functionality, two types of model coals with different nitrogen structures have been prepared using cellulose and phenolic nitrogen compounds, 2-hydroxycarbazole and 6-hydroxyquinoline. Carbon and nitrogen structures in the model coals have been analyzed by solid-state 13CNMR, pyrolysis GC-NPD and GC-MS. The 13C-NMR spectra of the model coals very closely resemble those of natural coals with similar carbon content, and the pyrolysis GCNPD analyses show that the model coals have the same nitrogen-containing skeleton as the original nitrogen compounds.
    Addition of Ca and Fe catalysts on the model coals has also been carried out to make clear the effects of the Ca and Fe on nitrogen release from the model coals. Nitrogen release during pyrolysis of the model coals without and with catalyst has been studied in a fixed-bed reactor at 50°C/min up to 1, 000°C. The pyrolysis results show that thermal decomposition behavior of pyrrolic and pyridinic nitrogen in the model coals is similar, and both calcium and iron catalysts are effective on nitrogen removal from the model coals prepared at 200°C. However, the efficiency of nitrogen removal by the catalysts depends on the preparation temperature of the model coals.
    x

    Readers Who Read This Article Also Read

    1. Influence of Heating Rate during Pyrolysis on Gasification Reactivity of Coal Chars at High Temperatures Journal of the Japan Institute of Energy Vol.79(2000), No.11
    2. Measurements of Gas Diffusion in Supercritical Water Journal of the Japan Institute of Energy Vol.79(2000), No.11
    3. Effective Use of Unutilized Energy Journal of the Japan Institute of Energy Vol.79(2000), No.11

Article Access Ranking

20 Sep. (Last 30 Days)

  1. Formation and Evolution of Inclusions in High Chromium Steel ISIJ International Vol.61(2021), No.9
  2. Perspective toward Long-term Global Goal for Carbon Dioxide Mitigation in Steel Industry Tetsu-to-Hagané Vol.105(2019), No.6
  3. Effect of Heating Rate on Carbothermic Reduction and Melting Behavior of Iron Ore-Coal Composite Pellets ISIJ International Advance Publication
  4. Preface to the Special Issue on “Recent Progress in Inclusion/ Precipitate Engineering” ISIJ International Vol.61(2021), No.9
  5. Evaluation of Interfacial Energy between Molten Fe and Fe-18%Cr-9%Ni Alloy and Non-Metallic Inclusion-Type Oxides ISIJ International Vol.61(2021), No.9
  6. Production and Technology of Iron and Steel in Japan during 2020 ISIJ International Vol.61(2021), No.6
  7. Modeling of Wall Shear Stress Induced Inclusion Transport and Removal in Multi-Strand Tundish ISIJ International Vol.61(2021), No.9
  8. Three-dimensional Quantitative Evaluation of the Lamellar Curvature in Pearlitic Steel Based on an Orientation Analysis of Cementite ISIJ International Advance Publication
  9. Analysis of Air-Mist Cooling Effect for Coil in the Electromagnetic Induction Controlled Automated Steel Teeming System ISIJ International Vol.61(2021), No.9
  10. Simultaneous Analysis of Soluble and Insoluble Oxygen Contents in Steel Specimens Using Inert Gas Fusion Infrared Absorptiometry ISIJ International Vol.61(2021), No.9

Search Phrase Ranking

20 Sep. (Last 30 Days)

  1. blast furnace
  2. inconel 600
  3. blast furnace productivity
  4. miyamoto goro
  5. nozzle clogging
  6. b2o3 mold flux
  7. blue carbon
  8. investigation of arc behavior and temperature distribution corresponding to electrode and phase configurations in a multiphase ac arc
  9. ohno
  10. sei kimura