Bulletin of the Society of Sea Water Science, Japan
Online ISSN : 2185-9213
Print ISSN : 0369-4550
ISSN-L : 0369-4550
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Volume 33, Issue 4
Displaying 1-5 of 5 articles from this issue
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  • [title in Japanese]
    [in Japanese]
    1979 Volume 33 Issue 4 Pages 201-206
    Published: 1979
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.33.201
    JOURNAL FREE ACCESS
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  • The Integral Heat of Dilution in NaOH-KOH Aqueous Solution
    Takaji AKIYA, Masaru OWA, Shigetake KAWASAKI
    1979 Volume 33 Issue 4 Pages 207-213
    Published: 1979
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.33.207
    JOURNAL FREE ACCESS
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    The heat of dilution in NaOH-KOH aqueous solution was measured by twin-type calorimeter at25°C and 50°C under various KOH/(KOH+NaOH) ratio and the integral heat of dilution was obtainedin the range of (KOH+NaOH) concentration between 48 wt% and 5 wt%.
    The constants in Ausländer's equation on integral heat of dilution was estimated from the experimentalresults using the least square method and the integral heat of dilution estimated by the Ausländer's equation showed a good approximation to the experimental one.
    Then, using the experimental results, the heat balance in the process of potassium recovery andcaustic soda purification from the crude caustic soda solution containing potassium hydroxide by the crystallization of NaOH·3.5H2O and the heat storage density of the caustic solution were discussed.
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  • Unevenness and Its Effect on Performance Ratio of Flashing Brine Flow in the 100,000m3/day Test Module Plant of Multistage Flash Evaporator
    Tsutomu SUGETA, Fumikazu IKAZAKI, Masahito SATO, Shigeki TOYAMA
    1979 Volume 33 Issue 4 Pages 214-220
    Published: 1979
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.33.214
    JOURNAL FREE ACCESS
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    The distributions of temperature and velocity of flashing flow in the flash chambers of a testmodule plant of multistage flash evaporator were measured and the results clarified the followings:
    In the low temperature mode operation, considerable temperature difference in width directionwas observed and it become bigger with flowing to the down stages. This temperature differencewas attributed to the fact that the resistance of vapor flow from the brine level to the tube bundlewas not uniform in width direction. It was found that such a temperature difference had considerableinfluence on the performance ratio. Therefore, for a high flow rate plant of large scale, it issuggested that flash chamber geometry must be designed with consideration of not only flashingbrine flow but also vapor flow in flash chambers in low temperature stages.
    Uniform temperature distributions were observed in the high temperatue mode operation.
    The velocity distribution could be measured by cylindrical pilot tubes. No significant differencein velocity was found in width direction. It was considered that flow deflection hardly occured if orifice opening and floor geometry were uniform in width direction.
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  • Reviews on Salt Industry with Ion-Exchange Membrane Method (Part 1)
    Masuo NAGAMI
    1979 Volume 33 Issue 4 Pages 221-236
    Published: 1979
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.33.221
    JOURNAL FREE ACCESS
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  • Salt Industry in U.S.A.(Part 2)
    Masami KAHO
    1979 Volume 33 Issue 4 Pages 237-243
    Published: 1979
    Released on J-STAGE: February 19, 2013
    DOIhttps://doi.org/10.11457/swsj1965.33.237
    JOURNAL FREE ACCESS
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