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. 95 (2016), No. 2

  • Vertical Flow Simulations Using the Mesoscale Model to Assess Impacts on Soaring Birds around Offshore Wind Turbines

    pp. 156-161

    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.95.156

    Vertical velocity of the atmosphere around a floating offshore wind turbine situated in marine areas near Kaba Island, Goto City, Nagasaki Prefecture was predicted using the mesoscale meteorological model that can replicate not only ridge lift but also thermal lift. In addition, the possibility of impacts on soaring birds was investigated using vertical flow. As a result of the simulation, thermal lift and ridge lift of the area were accurately replicated. Around the coast of Kaba Island, ridge lift mainly prevailed, but almost no vertical flow was predicted above the marine waters near the wind turbine. Observations from a pre-construction survey of raptores such as ospreys and falcons revealed these birds frequently soar around the coastal areas of Kaba Island rather than in the waters where the turbine is installed, so the possibility of birds colliding with the turbine or using vertical flow from the turbine is very low.
  • Effects of Different Solvents on Hydrogenation of Acetic Acid over Pt/TiO2 for Bioethanol Production

    pp. 162-166

    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.95.162

    Bioethanol production from lignocellulosics via acetic acid fermentation is a potential way to substitute gasoline with more improved carbon utilization efficiency than the conventional alcoholic fermentation processes. Accordingly, hydrogenation of acetic acid to ethanol is a very important step to realize this acetic acid-based process. In this communication, hydrogenation mechanism of acetic acid into ethanol on a Pt catalyst supported on TiO2 (titania) was characterized from the solvent effects. The Pt/TiO2 catalyst was quite effective in hexane, a nonpolar solvent, to give ethanol and ethyl acetate from acetic acid in relatively high yields, while the catalytic activities were reduced in tetrahydrofuran (THF) and water, polar solvents. These results evidently support the catalytic mechanism: Ti atoms of the TiO2 surface act as a Lewis acid to activate the carbonyl carbon of acetic acid, which leads to the efficient hydrogenation of acetic acid at the interface between Pt and TiO2. Suppression of the ethyl acetate formation in THF and water, which could be formed via the common activated state of acetic acid on TiO2, also supports this catalytic mechanism.
    x

    Readers Who Read This Article Also Read

    1. Vertical Flow Simulations Using the Mesoscale Model to Assess Impacts on Soaring Birds around Offshore Wind Turbines Journal of the Japan Institute of Energy Vol.95(2016), No.2
    2. Retrospective Evaluation of Gasohol Promotion Policy in Thailand Using an Input-Output Model Journal of the Japan Institute of Energy Vol.95(2016), No.5
    3. GIS-based Multi-criteria Analysis for Urban Waste Management Journal of the Japan Institute of Energy Vol.95(2016), No.5
  • Modeling of n-Paraffin Cracking with Vapor-liquid Equilibrium

    pp. 167-172

    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.95.167

    The Fischer–Tropsch (FT) process produces versatile final products comprising diverse mixtures of various hydrocarbons, and longer chain hydrocarbon products require further refining processes to obtain the desired product fractions. The hydrocracking reaction of paraffinic hydrocarbons has been intensively investigated from the experimental and theoretical perspectives in past studies. The objective of the study is to develop an alternative hydrocracking model by introducing a production distribution matrix that allows the treatment of cracking products as individual species (i.e., no lumping required) and also by taking into account the vapor–liquid equilibrium (VLE) of the cracking reaction system with the application of Raoult’s law. Models in which the VLE was accounted for apparently produced better agreement between the experimental data and model outputs, and the use of the product distribution matrix was also effective for predicting the hydrocracking reaction. Further, the findings of this study indicated that Raoult’s law was sufficient for predicting the product compositions.

Article Access Ranking

23 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. Preface to the Special Issue on “Recent Progress in Inclusion/ Precipitate Engineering” ISIJ International Vol.61(2021), No.9
  4. 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
  5. Effect of Heating Rate on Carbothermic Reduction and Melting Behavior of Iron Ore-Coal Composite Pellets ISIJ International Advance Publication
  6. Analysis of Air-Mist Cooling Effect for Coil in the Electromagnetic Induction Controlled Automated Steel Teeming System ISIJ International Vol.61(2021), No.9
  7. Production and Technology of Iron and Steel in Japan during 2020 ISIJ International Vol.61(2021), No.6
  8. Modeling of Wall Shear Stress Induced Inclusion Transport and Removal in Multi-Strand Tundish ISIJ International Vol.61(2021), No.9
  9. Three-dimensional Quantitative Evaluation of the Lamellar Curvature in Pearlitic Steel Based on an Orientation Analysis of Cementite ISIJ International Advance Publication
  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

23 Sep. (Last 30 Days)

  1. blast furnace
  2. inconel 600
  3. blast furnace productivity
  4. miyamoto goro
  5. b2o3 mold flux
  6. blue carbon
  7. investigation of arc behavior and temperature distribution corresponding to electrode and phase configurations in a multiphase ac arc
  8. ohno
  9. sei kimura
  10. skd61