燃料協会誌
Online ISSN : 2185-226X
Print ISSN : 0369-3775
ISSN-L : 0369-3775
68 巻, 8 号
選択された号の論文の11件中1~11を表示しています
  • 福田 隆博
    1989 年 68 巻 8 号 p. 707
    発行日: 1989/08/20
    公開日: 2010/06/28
    ジャーナル フリー
  • 柴田 研一
    1989 年 68 巻 8 号 p. 708-718
    発行日: 1989/08/20
    公開日: 2010/06/28
    ジャーナル フリー
    Recently the requirements for the performance and applicability of the thermal insulation materials have become intensified. Responding to these requirements, many kinds of insulation materials are being developed excellent in heat resistance, thermal shock resistance, insulating property, strength, applicability, etc. Synthetic inorganic fiber is one of the representative insulation materials among the porous materials excellent in insulating properties and its application becomes much wider.
    Here I would like to introduce the outlines and new applications of glass fibers, rockwool fibers, ceramic fibers and alumina fibers which are now widely used. Among these fibers, I can select the following three fibers which are having the novelties and newness.
    1. Light weight and high strength molded shapes of ceramic fibers.
    2. Fire resistant refractory board of alumina fibers up to 1, 800°C.
    3. Reusable thermal insulation tiles for the space orbitor.
  • 三島 毅, 飛田 典幸
    1989 年 68 巻 8 号 p. 719-727
    発行日: 1989/08/20
    公開日: 2010/06/28
    ジャーナル フリー
    MOX fuel which stands for Mixed Oxide fuel is one of the most realistic options for utilizing plutonium as an energy resource in the future with nuclear fuel cycle system including breede reactors.
    Development of MOX fuel is undertaken in Tokai Laboratory of PNC (Power Reactor and Nuclear Fuel Development Corporation) faced with the PNC's breeder reactor program.
    In the text, features of nuclear fuel, completely different from fossil fuel, and state of the art of MOX fuel development is discribed plain.
  • 〓 超然, 真田 雄三, 千葉 忠俊
    1989 年 68 巻 8 号 p. 728-734
    発行日: 1989/08/20
    公開日: 2010/06/28
    ジャーナル フリー
    Needle penetration and swelling of a cylindrical block of Drummond coal during heating were measured under pressures up to 10MPa in nitrogen and hydrogen gas atmospheres at heating rate of 10K/min and steady temperature of 773K. The measurements were successfully carried out connecting a needle or a piston to a linear-variable differential transformer detector.
    The needle penetration into the coal was shown to occur at all conditions presently employed whereas the swelling was suppressed at higher pressures. The maximun swelling ratio decreased with increasing pressure and was greater in H2 than in N2 at the same pressure. The penetration occurred within the same temperature range as the swelling. The temperature at which penetration commencedwas lower in H2 than in N2 and decreased with the pressure. The apparent coal viscosity wasthen estimated analyzing the penetration-temperature and the swelling ratio-temperature curves byan existing relationship between the penetration rate and the viscosity. The results showed that thetemperature dependency of the viscosity is approximately described by Andrade's equation with theconstants depending on gas atmosphere and pressure. The apparent activation energies obtained herewere rather high, i. e., 100-320 kcal/mol.
  • 山本 佳孝, 加茂 徹, 稲葉 敦, 三木 啓司, 佐藤 芳樹
    1989 年 68 巻 8 号 p. 735-742
    発行日: 1989/08/20
    公開日: 2010/06/28
    ジャーナル フリー
    The composition changes of hetero compounds in recycle solvent derived from the liquefaction experiment with Battle River coal using a lt/d pilot plant were examined.
    In general, oxygen compounds increased and nitrogen compounds decreased. However, for some nitrogen compounds, the tendency of composition changes were different. Indole decreased immediately, but carbazole increased in recycle solvent. On the other hand, the decrease of o-ethylaniline was relatively slow.
    In order to consider the mechanism for hydrodenitrogenation, the model experiments were carried out with the same N-iMo catalyst used in the liquefaction experiment of the pilot plant.
    Carbazole was hard to be decomposed. Indole was hydrogenated to o-ethylaniline and succesively denitrogenated to yield ethylcyclohexane. In this reaction, indole was rapidly converted and the rate-determing step was presumed to be the hydrodenitrogenation of o-ethylaniline.
  • 宗 重雄
    1989 年 68 巻 8 号 p. 743-748
    発行日: 1989/08/20
    公開日: 2010/06/28
    ジャーナル フリー
    Light gasoline was produced from kerosene at industrial vapor phase hydrocracking plants. The system analysis of the plants was made from the engineering point of view.
    The reactor was approximated by a multitubular reactor with internal three-way counter flow heat exchanger and an analytical model for temperature distribution in the reactor was proposed. The calculated values were in good agreement with the experimental results.
    Considering the characteristic of this reaction system, there seems to be following several reasons to get this good agreement: (1) rather small heat of reaction, (2) the slow reaction rate, (3) moderate longitudinal temperature distribution in the reactor and (4) using the reasonable physical properties.
  • 宮寺 達雄
    1989 年 68 巻 8 号 p. 749-756
    発行日: 1989/08/20
    公開日: 2010/06/28
    ジャーナル フリー
    The second oxidation process of the tw-ostage reaction between hydrocarbons and nitrogen oxides was simulated by use of 112 reactions containing N2, O2, H2, H2O, H2O2, H, O, OH, HO2, NH3, NH2, NH, N, HNO, NO, NO2, N2O, HCN, CN, NCN, C2N2, NCO, CHO, CO, CO2.
    Though Calculated concentrations of NOx at the outlet of the reactor did not agree precisely with the experimental results, the calculations followed the experiment at various conditions. The results of the calculations revealed the following features of the oxidation of nitrogen compounds. Most of the HCN changed to CN, NCO, NH. Nitic oxide and nitrogen were formed mainly through NCO+O →CO +NO, NH+OH→NO+H2, and through NO+N→N2+O, respectively. The decrease of oxygen at the inlet of the reactor decreased NCO and increased N, NH in the reactor and caused the reduction of NCO+O→CO+NO and acceleration of NO+N→N2+O, NH+NO→N2+OH. The concentrations of NO, NCO, N, NH in the reactor were lowered and the formation rate of NO and N2 were decreased with decrease of nitrogen compounds at the inlet. The decrease of the latter was larger than the former. The high concentration of NO at the inlet of the reactor reduced the formation of NO and accelerated the formation of N2.
  • 太陽炉
    水野 正雄
    1989 年 68 巻 8 号 p. 757-764
    発行日: 1989/08/20
    公開日: 2010/06/28
    ジャーナル フリー
  • 陽 捷行
    1989 年 68 巻 8 号 p. 767
    発行日: 1989/08/20
    公開日: 2010/06/28
    ジャーナル フリー
  • 勝又 聡, 伊藤 利通
    1989 年 68 巻 8 号 p. 768-769
    発行日: 1989/08/20
    公開日: 2010/06/28
    ジャーナル フリー
  • 高橋 由美子
    1989 年 68 巻 8 号 p. 770-771
    発行日: 1989/08/20
    公開日: 2010/06/28
    ジャーナル フリー
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