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 Mar. (Last 30 Days)

  1. Dependence of Carbon Concentration and Alloying Elements on the Stability of Iron Carbides ISIJ International Advance Publication
  2. Comprehensive Optimization Control Technology of Rolling Energy and Oil Consumption in Double Cold Rolling ISIJ International Advance Publication
  3. Experiments on Removal of Hydrophilic Fine Particles in Bubbly Flow ISIJ International Vol.59(2019), No.2
  4. Effects of Impurities and Processing Conditions in Al–1%Mn Alloys on the Formation of Thermally Stabilized Substructures MATERIALS TRANSACTIONS Vol.59(2018), No.11
  5. Coating Film Profiles Generated by Fluctuating Location of the Wiping Pressure and Shear Stress ISIJ International Vol.59(2019), No.2
  6. Temperature Field Distribution of a Dissected Blast Furnace ISIJ International Advance Publication
  7. Evolution of Blast Furnace Process toward Reductant Flexibility and Carbon Dioxide Mitigation in Steel Works ISIJ International Vol.56(2016), No.10
  8. Effect of EAF Slag Temperature and Composition on its Electrical Conductivity ISIJ International Vol.59(2019), No.2
  9. Fundamentals of Silico-Ferrite of Calcium and Aluminium (SFCA) Iron Ore Sinter Bonding Phase Formation: Effects of Basicity and Magnesium on Crystallisation during Cooling ISIJ International Vol.59(2019), No.2
  10. Molecular Dynamics Simulation of Carbon Effect on the Thermal Physical Properties of the Molten Iron ISIJ International Vol.59(2019), No.2

Search Phrase Ranking

23 Mar. (Last 30 Days)

  1. blast furnace
  2. blast furnace permeability
  3. blast furnace productivity
  4. galvanizing
  5. tuyere abrasion
  6. tuyere erosion
  7. tuyere failure
  8. isij
  9. lme
  10. wear on tuyere