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. 78 (1999), No. 10

  • Development of Practical Inventory Analysis Using an Input-Output Table

    pp. 861-868

    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.78.861

    This paper discusses two main problems to develop practical inventory analysis using an input-output (I-O) table. The first is the allocation problem caused by use of an actual I-O table, which indicates transaction among sectors on monetary unit. When direct and indirect emissions at the production of commodities are calculated using conventional I-O analysis method, the values are underestimated or overestimated due to the assumption that a commodity is sold at a uniform price to all consumers. In this paper, modified method is presented, reflecting the fact that a commodity is sold at different prices to each consumer. It is found that CO2 emission factors of commodities estimated using the modified method are different from those using the conventional method. The second is the way to combine process analysis with I-O analysis for reasonable and practical inventory analysis. The merit of process analysis is precise estimation reflecting actual processes. On the other hand, I-O analysis theoretically enables consistent estimation taking account of all processes in society. This paper describes an inventory analysis method that makes the best use of merits of both. CO2 emission factor of a boiler is calculated using the method and the result proves the method to be available.
  • Estimation of the Average Aromatic Cluster Size Based on Solid-state NMR Measurement of Coal

    pp. 869-876

    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.78.869

    Measurements of solid-state NMR of eight Argonne Premium Coal Samples were conducted to estimate the average aromatic cluster size in these coals. Firstly, the carbon distribution was obtained from SPE/MAS 13C-NMR. Secondary, 1HCRAMPS NMR spectra gave the hydrogen aromaticity of coal. Combination use of the hydrogen aromaticity and elemental analysis data could afford the amount of tertiary aromatic carbon. The parameter of χb, the mole fraction of aromatic bridgehead carbons in all aromatic carbons, could be derived from above NMR data and elemental analysis of coal. χb is directly correlated to the number of aromatic carbon atoms per aromatic cluster, C. In this study, the value of C varied from 10 (corresponding to the size of naphthalene) for Beulah-Zap and Wyodak coals to 23 (corresponding to the size of coronene) for Pocahontas No.3 coal.

Article Access Ranking

03 Feb. (Last 30 Days)

  1. Automatic Ultrasonic Testing of Non-metallic Inclusions Detectable with Size of Several Tens of Micrometers Using a Double Probe Technique along the Longitudinal Axis of a Small-diameter Bar ISIJ International Vol.61(2021), No.1
  2. Effect of microstructure on mechanical properties of quenching & partitioning steel ISIJ International Advance Publication
  3. Role and Potential of Aluminium and Its Alloys for a Zero-Carbon Society MATERIALS TRANSACTIONS Vol.64(2023), No.2
  4. Preface to the Special Issue on “Advanced Carbon Utilization Technologies and Processes for Sustainably Prosperous Society” ISIJ International Vol.62(2022), No.12
  5. A novel way refining the partially reverted globular austenite in reversion from martensite ISIJ International Advance Publication
  6. Soft Sensors and Diagnostic Models Using Real Time Data of Blast Furnaces at Tata Steel ISIJ International Vol.63(2023), No.1
  7. Interaction Coefficients of Cu and Sn with Mn in Molten Iron at 1873 K ISIJ International Vol.62(2022), No.12
  8. Influence of Large Amount of Hydrogen Containing Gaseous Reductant Injection on Carbon Consumption and Operation Conditions of Blast Furnace - Development of Low Carbon Blast Furnace Operation Technology by using Experimental Blast Furnace: part II - ISIJ International Vol.62(2022), No.12
  9. Influence of the Slag Rim on the Heat Transfer Behavior of a Mold ISIJ International Advance Publication
  10. Application of Variable Gauge Rolling Technology for Plate to Reduce the Head Impact ISIJ International Advance Publication

Search Phrase Ranking

03 Feb. (Last 30 Days)

  1. blast furnace
  2. process
  3. aaa
  4. tetsu
  5. aaaa
  6. a
  7. aa
  8. orange peel
  9. ...
  10. experimental study on