Journal of the Fuel Society of Japan
Online ISSN : 2185-226X
Print ISSN : 0369-3775
ISSN-L : 0369-3775
Volume 54, Issue 10
Displaying 1-9 of 9 articles from this issue
  • [in Japanese]
    1975 Volume 54 Issue 10 Pages 793
    Published: October 20, 1975
    Released on J-STAGE: June 28, 2010
    JOURNAL FREE ACCESS
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  • Takaaki Yamaguchi, Ikutoshi Matsumura
    1975 Volume 54 Issue 10 Pages 794-808
    Published: October 20, 1975
    Released on J-STAGE: June 28, 2010
    JOURNAL FREE ACCESS
    EAJ (Environment Agency of Japan) is now investigating the release of hydrocarbon vapors into the atmosphere. It is anticipated that broad legislation will soon be enacted to limit this source of pollution. Some local self-governing bodies have already been regulating facilities discharging hydrocarbon vapors, such as storage tanks, transfer facilities, gas stations, etc.
    From an above point of view, here represent how these regulations stand, how hydrocarbon vapors release in all the petroleum industry, what preventive measuesr are effective, and what hydrocarbon recovery equipments are on the market.
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  • Kazuo Koyata, Kinji Hoshizawa
    1975 Volume 54 Issue 10 Pages 809-830
    Published: October 20, 1975
    Released on J-STAGE: June 28, 2010
    JOURNAL FREE ACCESS
    The automation of oil fired boilers requires a combustion monitor capable of detecting flame and of judging the combustion conditions.
    This paper reports that in order to develop highly reliable and low cost monitors, the applicability of the flame detectors now in use is investigated from the following points of view:
    (1) Actual results of existing flame detectors
    (2) The method of judgement of the combustion conditions by scanning the stable zone in the flame
    As the result of above investigation, the flame detectors which have one of following methods can be used as the combustion monitor.
    (1) Method using the ultraviolet ray in the flame by discharge tube
    (2) Method using the brightness variation (Flicker method)
    (3) Method using the brightness intensity
    (3) Method combining the ionized current with the electric conductivity in the flame
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  • Susumu Komatsu, Kiichi Sato, Goro Yamaguchi
    1975 Volume 54 Issue 10 Pages 831-837
    Published: October 20, 1975
    Released on J-STAGE: June 28, 2010
    JOURNAL FREE ACCESS
    The catalytic gasification of naphtha by K-β''-Al2O3, one of the alkali polyaluminates, was carried out for finding of the most suitable oparating condition and performing the long run, and following results were obtained.
    Effect of reaction pressure on the composition of gas produced, when placing a hydrogenalytic catalyst in lower part of the catalyst zone, decreased the unsaturated hydrocarbon content and reversed the saturated hydrocarbon content with increase of pressure from 3 to 6kg/cm2·G as shown in Fig. 4. Therefore, a quality as fuel gas had been improved with increase of pressure.
    The most suitable ratio of steam/oil was 2.0 g/ml, and the deposited carbon was removed from catalyst surface under that ratio.
    The long run test of 300 hr, under the maximum reaction temperture of 800°C, the pressure of 6kg/cm2·G and steam/oil ratio of 2.0g/ml, was performed, as the results, the catalytic activity and the potassium content in the catalyst did not change all through the long run. Therefore, it was clarified that there was no vaporization of potassium in the catalyst under these operation conditions.
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  • Kiyotaka Sakai, Hiroshi Hayashi
    1975 Volume 54 Issue 10 Pages 838-845
    Published: October 20, 1975
    Released on J-STAGE: June 28, 2010
    JOURNAL FREE ACCESS
    Many studies on the stability of Bunsen flame have so far been done by many investigators. However there are little studies on the flame stability accompanied with forced secondary air flow around the burner tube. Nomaguchi and coworkers related the blow-off limits of such flames with the critical boundary velocity gradient theory at the flame base and explained the mechanism of blow-off limits. The blow-off mechanism is, however, considered to be different according to the range of secondary air flow velocity. There-fore, analyzing the data of our experiments with the Maezawa's momentum theory, the following results were obtained:
    (1) In the case of small secondary air flow,
    Gi/Go=1-kGp0.5 (1)
    (2) In the case of large secondary air flow,
    Gi/Go=1-k'Gp0.1 (2)
    In Eqs.(1), (2), G is the momentum of gaseous fluid and subscripts i, 0 and p show with secondary air flow, without secondary air flow and secondary air flow, respectively.
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  • [in Japanese]
    1975 Volume 54 Issue 10 Pages 846-856
    Published: October 20, 1975
    Released on J-STAGE: February 23, 2011
    JOURNAL FREE ACCESS
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  • [in Japanese]
    1975 Volume 54 Issue 10 Pages 857-863
    Published: October 20, 1975
    Released on J-STAGE: June 28, 2010
    JOURNAL FREE ACCESS
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  • 1975 Volume 54 Issue 10 Pages 864
    Published: 1975
    Released on J-STAGE: February 23, 2011
    JOURNAL FREE ACCESS
    Download PDF (69K)
  • 1975 Volume 54 Issue 10 Pages 871-875
    Published: October 20, 1975
    Released on J-STAGE: June 28, 2010
    JOURNAL FREE ACCESS
    Download PDF (728K)
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