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. 99 (2020), No. 7

  • Technoeconomic Assessment of Mini-grids in Myanmar

    pp. 67-74

    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.99.67

    The electrification rate of Myanmar is about 40 percent and its improvement is an urgent matter. The Sustainable Development Goal 7 recognizes the importance of energy access and calls for a solution to the Government of Myanmar’s plans to reach 100 percent electrification by 2030. To achieve this ambitious plan, both centralized (main-grid extension) and decentralized approaches should be considered. In this study, we focused on distributed mini-grids among electrification options. In Myanmar, as in other developing countries in the region, diesel generators are widely used as power sources of mini-grids. Considering the global trend of reduction of carbon dioxide emission, power sources should be selected carefully. When discussing possible power sources, cost-competitiveness is an important aspect. Therefore, we researched the question: How costcompetitive are mini-grids powered by solar photovoltaics (PVs) compared to conventional diesel power source? We used the primary data collected through interviews and field surveys, and calculated the levelized cost of electricity (LCOE) of mini-grids. Our results show that solar PVs and batteries are cost-competitive compared with diesel in off-grid areas where diesel fuel prices are much higher than in urban areas. However, to improve efficiency, daytime use of electricity (e.g. productive use) needs to be promoted.
    x

    Readers Who Read This Article Also Read

    1. Optimization of Lignin Conversion by Hydrothermal Method for Recovery of Vanillin Journal of the Japan Institute of Energy Vol.99(2020), No.10
    2. The Effects of Iron Ore during Gasification of Woody Biomass Journal of the Japan Institute of Energy Vol.99(2020), No.10
    3. Oil Palm Empty Fruit Bunch as a Promising Feedstock for Biorefinery Products: A Holistic Approach with Economic, Energy, and Environmental Consideration Journal of the Japan Institute of Energy Vol.99(2020), No.9
  • Prediction of Surface Tension of Heavy Oil Based on Principle of Corresponding States Combined with Detailed Composition and Molecular Structure Analysis

    pp. 75-81

    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.99.75

    In this work, a new method of predicting the surface tension of heavy oils and its temperature dependence was developed. The surface tensions of five fractions and residue fractionated by the vacuum distillation of atmospheric residue (AR), and AR itself were predicted, based on a detailed composition and molecular structure analysis, i.e., “petroleomics”. In this method, the chemical compositions and molecular structures of compounds included in the fractions and residue were identified by Fourier transform ion cyclotron resonance mass spectrometry (FT-ICR MS), and then the critical pressure, critical temperature and boiling point of each compound were calculated by the group contribution method. Next, using the calculated properties, the surface tension of each compound was predicted by the principle of corresponding states. Finally, a mixing rule, in which the surface tension of mixtures was expressed as a linear function of mole fraction of each compound, was used to predict the surface tensions of the five fractions and residue of AR and AR itself. By comparing the predicted and experimental values of the surface tensions and their temperature dependence, it was found that the present method is useful for predicting the surface tension of heavy oils.
  • Table of Contents (in English)

    p. 9907tce_1

    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.99.9907tce_1

  • Table of Contents (in Japanese)

    p. 9907tcj_1

    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.99.9907tcj_1

Article Access Ranking

01 Dec. (Last 30 Days)

  1. Heat conduction through different slag layers in mold. Thermal conductivity measurement of commercial mold fluxes ISIJ International Advance Publication
  2. Deformation of Non-metallic Inclusions in Steel during Rolling Process: A Review ISIJ International Vol.62(2022), No.11
  3. Activity of Chromium Oxide in Calcium Silicate Bearing Molten Slag for Highly Clean Chromium Steel Refining Process ISIJ International Advance Publication
  4. Effects of basicity and Al2O3 content on the crystal structure of silico-ferrite of calcium and aluminum ISIJ International Advance Publication
  5. Behavior and kinetic mechanism analysis of dissolution of iron ore particles in HIsmelt process based on high-temperature confocal microscopy ISIJ International Advance Publication
  6. Corrections of the figure in the paper “Effect of Cerium and Magnesium Addition on Evolution and Particle Size of Inclusions in Al-killed Molten Steel” [ISIJ International, Vol. 62 (2022), No. 9, pp. 1852-1861] ISIJ International Vol.62(2022), No.11
  7. Dissolution of Chromium from Steelmaking Slag–Cr-containing Mineral Phases and Synthetic Slags– Tetsu-to-Hagané Vol.108(2022), No.11
  8. Effect of Molten Steel Composition on Inclusion Modification by Calcium Treatment in Al-Killed Tinplate Steel ISIJ International Advance Publication
  9. Characterization and Control of Secondary Phase Precipitation of Nb–V–Ti Microalloyed Steel during Continuous Casting Process ISIJ International Vol.62(2022), No.11
  10. Improvement of Sinter Productivity and Qualities by Placing Low Slag Green Pellet at Lower Layer of Sinter Packed Bed ISIJ International Vol.62(2022), No.11

Search Phrase Ranking

01 Dec. (Last 30 Days)

  1. blast furnace
  2. si-killed spring steel
  3. converter slag
  4. 高温変形抵抗
  5. 钢渣脱磷
  6. 5%nickel
  7. coatings hot formed steel
  8. free lime
  9. secondary cooling billet
  10. si killed spring steel wire rod