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. 74 (1995), No. 10

  • Methodology of Emissions Inventory Preparation and Environmental Impact Evaluation

    pp. 874-881

    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.74.874

    Reviewed in this paper are the methodologies used for emissions inventory preparation and the environmental impact evaluation of emissions from industrial production and/or technologies utilization. The methodologies utilized for emissions inventories can be categorized into two approaches: the bottom-up approach, and the analytical approach using input-output tables. Currently, the environmental impacts are evaluated by the classification, such as “Greenhouse effect” and “Ozone layer depletion”, and aggregation method, whose value are calculated by the product of the emissions volume/mass and the weighting factors. The weighting factors are presently estimated based on scientific knowledge as far as possible. In order to evaluate environmental impacts on the different classifications in the same unit, the method of the calculation of environmental costs has been the focus of attention recently. Environmental costs are the parts of the externality, which is not reflected on the present market prices, of the industrial products and/or technologies. In the future, we should consider not only environmental impacts caused by the emissions but also other externality such as “Resource depletion” and “Land use”.
  • A Numerical Study on a Single Char Particle Combustion Around Ash Melting Temperature

    pp. 882-888

    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.74.882

    The ash layer diffusion controlling model and a finite difference method were successfully employed to simulate a single char particle combustion at around ash melting temperature. The numerical modeling was conducted under the operation conditions similar to the author's previous experiment. It was found that the numerical temperature profile in a burning char particle was strongly influenced by the ash layer heat conductivity. By considering the ash layer heat conductivity was varied with time, the simulated particle time temperature profiles agreed well with the experimental results. And the optimum value of ash layer heat conductivity to fit the experimental temperature variation with time was found to be increased with ash content and maximum combustion temperature. The agreement between the simulation and experimental results proved the validation of the numerical modeling. The numerical study also suggested that the smaller particle reaches its peak temperature quicker than larger particles and gives the higher peak temperature.
  • Evaluation of the Ignition Property of a Diesel Fuel Using the Autoignition Temperature Test

    pp. 889-894

    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.74.889

    In order to obtain some information on ignition property of diesel fuels, we have attempted to determine autoignition temperatures of various diesel fuels and to compare those with their cetane numbers. As a result it was shown that the autoignition temperature of the diesel fuels should have a tendency to decrease with an increase in their cetane number and that the addition of the cetane number improving agents could make autoignition temperatures lower. We suggest that the autoignition temperature test should be useful screening one to evaluate the cetane number and the cetane number improvement of diesel fuels.

Article Access Ranking

23 May. (Last 30 Days)

  1. Influence of Thermomechanical Treatment on Delayed Fracture Property of Mo-Bearing Medium-Carbon Steel ISIJ International Vol.62(2022), No.2
  2. Comparison of Oxidation Behavior of Various Reactive Elements in Alloys during Electroslag Remelting (ESR) Process: An Overview ISIJ International Advance Publication
  3. Dissolution Kinetics of Synthetic FeCr2O4 in CaO–MgO–Al2O3–SiO2 Slag ISIJ International Vol.62(2022), No.4
  4. Fundamentals of Silico-Ferrite of Calcium and Aluminium (SFCA) and SFCA-I Iron Ore Sinter Bonding Phase Formation: Effects of MgO Source on Phase Formation during Heating ISIJ International Vol.62(2022), No.4
  5. Interaction Coefficients of Mo, B, Ni, Ti and Nb with Sn in Molten Fe–18mass%Cr Alloy ISIJ International Vol.62(2022), No.3
  6. Phenomenological Understanding about Melting Temperature of Multi-Component Oxides Tetsu-to-Hagané Vol.108(2022), No.4
  7. Ironmaking Using Municipal Solid Waste (MSW) as Reducing Agent: A Preliminary Investigation on MSW Decomposition and Ore Reduction Behavior ISIJ International Advance Publication
  8. A Novel Process for Separation of Magnetite and Phosphorous Phases from a CaO–SiO2–FeO–P2O5 Slag ISIJ International Advance Publication
  9. Removal of Inclusions using Swirling Flow in a Single-Strand Tundish ISIJ International Advance Publication
  10. Influence of Acicular Ferrite Microstructure on Toughness of Ti-Rare Earth Metal (REM)-Zr Killed Steel Tetsu-to-Hagané Vol.108(2022), No.5

Search Phrase Ranking

23 May. (Last 30 Days)

  1. blast furnace
  2. blast furnace permeability
  3. blast furnace productivity
  4. galvannealing
  5. jet impingement
  6. jet impingement + cooling + runout table
  7. nitrogen
  8. refractory
  9. steel
  10. valve spring steel