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Journal Articles

Analytical study of volumetric scroll pump for liquid hydrogen circulating system

Kritmaitree, P.; Akiyama, Mitsunobu*; Hino, Ryutaro; Kaminaga, Masanori; Terada, Atsuhiko*

Journal of Nuclear Science and Technology, 39(1), p.101 - 107, 2002/01

 Times Cited Count:4 Percentile:30.13(Nuclear Science & Technology)

The paper presents analytical results of suction process of a volumetric scroll pump, which will be developed for circulating liquid hydrogen in a cold moderator system. The multi-block grid generation approch has been applied to generate a moving boundaries computational model. The finer mesh patterns have been generated in the near-wall regions. The analysis has been carried out under liquid hydrogen flow conditions. The analytical results show that at the end of suction process the relative pressures increase significantly in a pocket while decrease continuously in another pocket. This phenomenon might damage scroll pump components if the high-pressure side is too high and/or the low-pressure side is too low until the cavitations occur. Therefore, the pockect should open to the discharge chamber before it closes and separates from the suction chamber in order to prevent the cavitations and extremely high-pressure regions.

Journal Articles

Prediction of flow patterns and pressure distributions in suction process of volumetric scroll pump

Kritmaitree, P.*; Akiyama, Mitsunobu*; Hino, Ryutaro; Kaminaga, Masanori; Terada, Atsuhiko*

Journal of Nuclear Science and Technology, 37(11), p.996 - 998, 2000/11

no abstracts in English

Journal Articles

Temperature dependency of optical properties of thermochromic materials

Kubo, Shinji; Akino, Norio; Akiyama, Mitsunobu*; *

Netsu Bussei, 11(2), p.39 - 45, 1997/00

no abstracts in English

Journal Articles

Measurement of optical characteristics on thermochromic solutions

Kubo, Shinji; Akino, Norio; Akiyama, Mitsunobu*; *

Kashika Joho Gakkai-Shi, 15(SUPPL.1), p.63 - 66, 1995/07

no abstracts in English

Journal Articles

Measurement of temperature distribution using fluorescence

Kubo, Shinji; Akino, Norio; Akiyama, Mitsunobu*; *

Dai-31-Kai Nihon Dennetsu Shimpojiumu Koen Rombunshu, 0, p.373 - 375, 1994/05

no abstracts in English

Journal Articles

Numerical simulation of laminar flow in various curved pipes using a boundary-fitted coordinate system

Kunugi, Tomoaki; Yokokawa, Mitsuo; *; Akiyama, Mitsunobu*; *

Nihon Kikai Gakkai Rombunshu, B, 55(518), p.3011 - 3018, 1989/10

no abstracts in English

Journal Articles

Numerical simulation of laminar flow in a curved pipe using a boundary fitted coordinate system

Kunugi, Tomoaki; Yokokawa, Mitsuo; *; Akiyama, Mitsunobu*; *

Dai-2-Kai Suchi Ryutai Rikigaku Shimpojiumu Koen Rombunshu, p.563 - 566, 1988/00

no abstracts in English

Journal Articles

Numerical simulation for various curved pipes using boundary-fitted coordinate system

Kunugi, Tomoaki; Yokokawa, Mitsuo; Akiyama, Mitsunobu*; *

Nagare Kashika, 8(30), p.201 - 204, 1988/00

no abstracts in English

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