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Volume 36, Issue 11
Displaying 1-7 of 7 articles from this issue
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Hirofumi TSUJI, Hisao MAKINO, Hideto YOSHIDA1999 Volume 36 Issue 11 Pages 810-818
Published: November 10, 1999
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSThis paper describes two measurement methods for particle size distribution in gas- particle flow. One, which is called backward sampling method, utilizes “classification effect” during the backward sampling and the other, which is called the combined method, uses both backward sampling and anisokinetic sampling.
We investigated the advanced procedure in which the Twomey algorithm is adapted as a data reduction method. The two methods were evaluated with numerically generated data and then applied to the measurement for fly ash from pulverized coal combustion. It was shown that the backward sampling method accurately estimates the particle size distribution for the particle. The combined method enables us to estimate complicated particle size distributions such as bimodal distribution. The size distributions of fly ash measured by both the backward sampling method and the combined method, are in agreement with the result obtained by the conventional method.View full abstractDownload PDF (1079K) -
Hiroshi UEDA, Harumoto KIMURA, Yuji TOMITA, Kiyoshi HORII1999 Volume 36 Issue 11 Pages 819-824
Published: November 10, 1999
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSThe factors affecting the degradation of wet granule properties due to pneumatic conveying has been investigated. The contact of granules with pipe inner wall has been identified as the most serious deteriorating factor. In order to evaluate the influence of granule-contact with the pipe wall on granule properties, pneumatic conveying test has been carried out and the change in physicochemical properties of granules has been investigated by varying the pass-through number from one to 20 for a given conveying pipeline. As a result, by increasing the pass-through number, the granule size, the angle of repose and the dissolution rate were decreased, whereas the apparent density was increased. SEM photographs of granules demonstrated a substantial surface change of granule due to pneumatic conveyance.View full abstractDownload PDF (2645K) -
Yoshiyuki SUGAI, Munetake SATOH, Makoto KAWASAKI, Tomohiro IWASAKI1999 Volume 36 Issue 11 Pages 825-832
Published: November 10, 1999
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSGranulation of powder compounds containing fibrous materials was studied by using basic materials that form brake pads. Because the mixture is easy to segregate during granulation process, stabilization process is necessary. In this study, two different granulation processes were employed and was compared with a dry mixing process. The strengths of test pieces made by these processes were compared by applying the three points bending strength tests and the friction characteristic test. As a result, we found that the granules with napped surface and a lower bulk density have a smaller wear rate and a higher bending strength.View full abstractDownload PDF (3745K) -
Hiroshi FUKUI1999 Volume 36 Issue 11 Pages 833-842
Published: November 10, 1999
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSDownload PDF (1084K) -
Kenji HASHIMOTO1999 Volume 36 Issue 11 Pages 843-848
Published: November 10, 1999
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSDownload PDF (2132K) -
Yasufumi YAMAMOTO1999 Volume 36 Issue 11 Pages 849-850
Published: November 10, 1999
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSDownload PDF (286K) -
Hideki ICHIKAWA1999 Volume 36 Issue 11 Pages 851-856
Published: November 10, 1999
Released on J-STAGE: April 30, 2010
JOURNAL FREE ACCESSDownload PDF (8370K)
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