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Solidification of porous medium saturated with aqueous solution in a rectangular cell. ; Discussion on influence of initial concentration of solution and mean diameter of beads. Kukei sonai no suiyoeki de mitasareta takoshitsutai no gyoko. ; Shoki nodo to beads no heikin chokkei no eikyo ni kansuru kento

Journal Article:

Abstract

Studies have been made for the purpose of analyzing solidification phenomenon of ground in relation to freezing construction method used in subway, water supply, and sewage constructions. Experimental studies have been carried out on solidification process of porous medium saturated with aqueous solution to discover influence of initial concentration of the solution and diameter of beads that constitute a porous medium. The experiment was performed by solidifying the porous medium sequentially from a side wall with lower temperature in a rectangular experimental tank with a height and a width of 100 mm filled with NaCl aqueous solution and beads. As a result, it was discovered that, if the initial concentration is low, the temperature difference is little between the upper part and the lower part of the experimental tank, and natural convection in the liquid-phase region is suppressed because of rising solidification temperature; the natural convection is suppressed in the liquid-phase region; and the boundary face between the mushy region and the liquid-phase region moves quickly. Further, the concentration rise in the liquid-phase region has slowed down despite that the solidification region is large enough. The smaller the mean diameter of beads, the faster the growth rate on the boundary  More>>
Authors:
Matsumoto, K; [1]  Okada, M; [2]  Murakami, M; [3]  Yabushita, Y [4] 
  1. Miyazaki University, Miyazaki (Japan). Faculty of engineering
  2. Aoyama Gakuin University, Tokyo (Japan). School of Science and Engineering
  3. Toshiba Corp., Tokyo (Japan)
  4. Sony Corp., Tokyo (Japan)
Publication Date:
Nov 25, 1993
Product Type:
Journal Article
Reference Number:
NEDO-93-914150; EDB-94-146142
Resource Relation:
Journal Name: Nippon Kikai Gakkai Ronbunshu. B Hen (Transactions of the Japan Society of Mechanical Engineers. Part B); (Japan); Journal Volume: 59:567
Subject:
42 ENGINEERING; 71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; AQUEOUS SOLUTIONS; CONTAINERS; POROUS MATERIALS; FREEZING; CIVIL ENGINEERING; SOILS; SOLIDIFICATION; DRAINAGE; ELECTRIC RAILWAYS; GLASS; NATURAL CONVECTION; PERMEABILITY; SPHERES; STEELS; UNDERGROUND FACILITIES; VINYL CHLORIDE; WATER UTILITIES; ALLOYS; CHLORINATED ALIPHATIC HYDROCARBONS; CONVECTION; DISPERSIONS; ENERGY TRANSFER; ENGINEERING; HALOGENATED ALIPHATIC HYDROCARBONS; HEAT TRANSFER; IRON ALLOYS; IRON BASE ALLOYS; MASS TRANSFER; MATERIALS; MIXTURES; ORGANIC CHLORINE COMPOUNDS; ORGANIC COMPOUNDS; ORGANIC HALOGEN COMPOUNDS; PHASE TRANSFORMATIONS; PUBLIC UTILITIES; RAILWAYS; SOLUTIONS; 422000* - Engineering- Mining & Underground Engineering- (1980-); 661210 - Cryogenics- (1992-)
OSTI ID:
6913460
Country of Origin:
Japan
Language:
Japanese
Other Identifying Numbers:
Journal ID: ISSN 0387-5016; CODEN: NKGBDD
Submitting Site:
NEDO
Size:
Pages: 242-249
Announcement Date:

Journal Article:

Citation Formats

Matsumoto, K, Okada, M, Murakami, M, and Yabushita, Y. Solidification of porous medium saturated with aqueous solution in a rectangular cell. ; Discussion on influence of initial concentration of solution and mean diameter of beads. Kukei sonai no suiyoeki de mitasareta takoshitsutai no gyoko. ; Shoki nodo to beads no heikin chokkei no eikyo ni kansuru kento. Japan: N. p., 1993. Web.
Matsumoto, K, Okada, M, Murakami, M, & Yabushita, Y. Solidification of porous medium saturated with aqueous solution in a rectangular cell. ; Discussion on influence of initial concentration of solution and mean diameter of beads. Kukei sonai no suiyoeki de mitasareta takoshitsutai no gyoko. ; Shoki nodo to beads no heikin chokkei no eikyo ni kansuru kento. Japan.
Matsumoto, K, Okada, M, Murakami, M, and Yabushita, Y. 1993. "Solidification of porous medium saturated with aqueous solution in a rectangular cell. ; Discussion on influence of initial concentration of solution and mean diameter of beads. Kukei sonai no suiyoeki de mitasareta takoshitsutai no gyoko. ; Shoki nodo to beads no heikin chokkei no eikyo ni kansuru kento." Japan.
@misc{etde_6913460,
title = {Solidification of porous medium saturated with aqueous solution in a rectangular cell. ; Discussion on influence of initial concentration of solution and mean diameter of beads. Kukei sonai no suiyoeki de mitasareta takoshitsutai no gyoko. ; Shoki nodo to beads no heikin chokkei no eikyo ni kansuru kento}
author = {Matsumoto, K, Okada, M, Murakami, M, and Yabushita, Y}
abstractNote = {Studies have been made for the purpose of analyzing solidification phenomenon of ground in relation to freezing construction method used in subway, water supply, and sewage constructions. Experimental studies have been carried out on solidification process of porous medium saturated with aqueous solution to discover influence of initial concentration of the solution and diameter of beads that constitute a porous medium. The experiment was performed by solidifying the porous medium sequentially from a side wall with lower temperature in a rectangular experimental tank with a height and a width of 100 mm filled with NaCl aqueous solution and beads. As a result, it was discovered that, if the initial concentration is low, the temperature difference is little between the upper part and the lower part of the experimental tank, and natural convection in the liquid-phase region is suppressed because of rising solidification temperature; the natural convection is suppressed in the liquid-phase region; and the boundary face between the mushy region and the liquid-phase region moves quickly. Further, the concentration rise in the liquid-phase region has slowed down despite that the solidification region is large enough. The smaller the mean diameter of beads, the faster the growth rate on the boundary face, hence the natural convection in the tank has been suppressed, and the growth rate on the boundary face has increased. In addition, the concentration stratification in the liquid-phase region does not expand, but is formed only on the bottom. 6 refs., 12 figs.}
journal = {Nippon Kikai Gakkai Ronbunshu. B Hen (Transactions of the Japan Society of Mechanical Engineers. Part B); (Japan)}
volume = {59:567}
journal type = {AC}
place = {Japan}
year = {1993}
month = {Nov}
}