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. 100 (2021), No. 6

  • Regional Optimization Guideline for Small-sized Energy System with Hydrogen Storage based on Natural Energy Source

    pp. 45-54

    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.100.45

    The small-sized energy supply system with hydrogen storage based on natural energy can be operated independently. However, estimating the system scale is not straightforward, as it requires a detailed assessment of the energy input from natural energy and the energy used. Here, we introduce a simple method of estimating the scale design guidelines for the energy systems with hydrogen storage based on local weather condition. Although detailed conditions are required for the actual energy system design, it is available to know the rough design of the system scale taking the local weather into consideration. From these analyses, it is found that local weather conditions have a large impact on the system scale.
    x

    Readers Who Read This Article Also Read

    1. Development of Coffee Residue Products by Wet Extrusion Molding Journal of the Japan Institute of Energy Vol.100(2021), No.6
    2. Concept of Carbon-related Energy to Connect Energy Consumption with CO2 Emissions Journal of the Japan Institute of Energy Vol.100(2021), No.6
  • Development of Coffee Residue Products by Wet Extrusion Molding

    pp. 55-61

    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.100.55

    Coffee residue (spent coffee grounds) has been unused biomass resources and discarded as food waste in a large amount. In this study, we aimed to develop all-biomass coffee residue products by wet extrusion molding with a natural molding aid. Coffee residue and hydroxypropylmethyl cellulose (HPMC) were mixed at a ratio of 8:2 to 5:5, water of 70 to 200% of the solid weight was added and kneaded, as a result, the coffee residue obtained fluidity. The amount of water has a great influence on the fluidity, and it was successful to extrude coffee residue into a plate or hollow shape with water of 100% of the solid weight. Unlike wood powder, the larger the ratio of HPMC was used, the higher the extrusion resistance, the lower the shrinkage and the Young's modulus of the molded products were. The difference in the components probably affected the characteristics because coffee residue has a low cellulose content and a large amount of oil and protein. It is epoch-making that coffee residue can be molded three-dimensionally without using thermoplastic resins with poor biodegradability. The products are possible to solve both the food waste problems and the serious environmental problems originated from plastics.
    x

    Readers Who Read This Article Also Read

    1. Regional Optimization Guideline for Small-sized Energy System with Hydrogen Storage based on Natural Energy Source Journal of the Japan Institute of Energy Vol.100(2021), No.6
    2. Concept of Carbon-related Energy to Connect Energy Consumption with CO2 Emissions Journal of the Japan Institute of Energy Vol.100(2021), No.6
  • Concept of Carbon-related Energy to Connect Energy Consumption with CO2 Emissions

    pp. 62-72

    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.100.62

    Reducing carbon dioxide (CO2) emissions from energy consumption is an urgent requirement to address climate change. The difficulty for energy consumers to consciously perceive CO2 emissions largely hinders the reduction of CO2 emissions. The purpose of this study is to develop new indicators to help CO2 emissions to be perceived intuitively and to show the applications of the new indicators. The main results of this study are as follows. (1) The authors introduce the new concept of CE (carbon-related energy) that shows a very strong correlation with CO2 emissions based on heating values and the element contents of fuels. The authors introduce CE-derived concepts such HE (hydrogen-related energy), RE (renewable energy), and CE ratio. (2) The CE ratio that is defined as CE per energy is the index of CO2 emissions intensity per energy. The CE ratio that is expressed as a normalized index ranging between 0.0 and 1.0 would intuitively be perceived by energy consumers. (3) Using the modified Kaya identity that the authors derived using the CE-derived concepts, an increase and decrease in CO2 emissions can be explained by the factors concerning CE-derived concepts and GDP. Using the CE-derived concepts, energy and CE as the indices of CO2 emissions can be described in one unit in a table or a figure instead of separately.
    x

    Readers Who Read This Article Also Read

    1. Development of Coffee Residue Products by Wet Extrusion Molding Journal of the Japan Institute of Energy Vol.100(2021), No.6
    2. Regional Optimization Guideline for Small-sized Energy System with Hydrogen Storage based on Natural Energy Source Journal of the Japan Institute of Energy Vol.100(2021), No.6
  • Tableof Contents (in English)

    p. Tce6_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.100.Tce6_1

  • Tableof Contents (in Japanese)

    p. Tcj6_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.100.Tcj6_1

Article Access Ranking

30 Sep. (Last 30 Days)

  1. Deformation of Non-metallic Inclusions in Steel during Rolling Process: A Review ISIJ International Advance Publication
  2. Interaction Coefficients of Cu and Sn with Mn in Molten Iron at 1873 K ISIJ International Advance Publication
  3. Thickness classifier on steel in heavy melting scrap by deep-learning-based image analysis ISIJ International Advance Publication
  4. Soft sensors and Diagnostic Models Using Real Time Data of Blast Furnaces at Tata Steel ISIJ International Advance Publication
  5. Bandwidth Maximization of Disturbance Observer Based on Experimental Frequency Response Data SICE Journal of Control, Measurement, and System Integration Vol.13(2020), No.6
  6. Effect of SiO2 content and mass ratio of CaO to Al2O3 on the viscosity and structure of CaO-Al2O3-B2O3-SiO2 slags ISIJ International Advance Publication
  7. Thermodynamic Conditions of MgO and MgO·Al2O3 Formation and Variation of Inclusions Formed in Fe-17 mass%Cr Steel at 1873 K Tetsu-to-Hagané Vol.108(2022), No.8
  8. Non-Cooperative Optimization Algorithm of Charging Scheduling for Electric Vehicle SICE Journal of Control, Measurement, and System Integration Vol.13(2020), No.6
  9. Comparison of Oxidation Behavior of Various Reactive Elements in Alloys during Electroslag Remelting (ESR) Process: An Overview ISIJ International Vol.62(2022), No.8
  10. Effect of 2CaO·SiO2 Addition on Reaction Behavior of Iron Ore Sinters ISIJ International Vol.62(2022), No.9

Search Phrase Ranking

30 Sep. (Last 30 Days)

  1. blast furnace
  2. 鉄と鋼
  3. si-killed spring steel
  4. hydrogen trapping
  5. isij international
  6. steel
  7. bake hardening
  8. damping alloy
  9. matsumura
  10. pickling