EXPERIMENTAL STUDY ON THE SILICA DEPOSITION IN A POROUS MEDIUM.

Ryuichi Itoi; Hiroaki Maekawa; Michihiro Fukuda; Kenji Jinno; Koichiro Hatanaka; Takushi Yokoyama; Shin Shimizu

EXPERIMENTAL STUDY ON THE SILICA DEPOSITION IN A POROUS MEDIUM.

Ryuichi Itoi, Hiroaki Maekawa, Michihiro Fukuda, Kenji Jinno, Koichiro Hatanaka, Takushi Yokoyama, Shin Shimizu

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution

Abstract

The decrease in permeability of a porous column (50 cm long and 5 cm in diameter) in a cylinder due to the deposition of silica scale has been examined. The temperature of the Otake water used for the experiment was 90-92 degree C and contained 522 ppm of silica. Permeability was calculated using the potential measured by 11 manometers which are set at various levels in the cylinder. The results indicate that the most of the silica scale was deposited within the first 10 cm of the porous medium and thereafter rapidly decreased in amount. In inverse proportion to the amount of silica deposits, the permeability was reduced to 0. 5-2 % in the uppermost part of the porous medium whereas it retained 80-90 % of the initial value in the places distant from the upper surface.

Original language	English
Title of host publication	Transactions - Geothermal Resources Council
Publisher	Geothermal Resources Council
Pages	301-304
Number of pages	4
ISBN (Print)	0934412588
Publication status	Published - 1984

Publication series

Name	Transactions - Geothermal Resources Council
Volume	8
ISSN (Print)	0193-5933

All Science Journal Classification (ASJC) codes

Renewable Energy, Sustainability and the Environment
Energy Engineering and Power Technology
Geophysics

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

Cite this

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title = "EXPERIMENTAL STUDY ON THE SILICA DEPOSITION IN A POROUS MEDIUM.",

abstract = "The decrease in permeability of a porous column (50 cm long and 5 cm in diameter) in a cylinder due to the deposition of silica scale has been examined. The temperature of the Otake water used for the experiment was 90-92 degree C and contained 522 ppm of silica. Permeability was calculated using the potential measured by 11 manometers which are set at various levels in the cylinder. The results indicate that the most of the silica scale was deposited within the first 10 cm of the porous medium and thereafter rapidly decreased in amount. In inverse proportion to the amount of silica deposits, the permeability was reduced to 0. 5-2 % in the uppermost part of the porous medium whereas it retained 80-90 % of the initial value in the places distant from the upper surface.",

author = "Ryuichi Itoi and Hiroaki Maekawa and Michihiro Fukuda and Kenji Jinno and Koichiro Hatanaka and Takushi Yokoyama and Shin Shimizu",

year = "1984",

language = "English",

isbn = "0934412588",

series = "Transactions - Geothermal Resources Council",

publisher = "Geothermal Resources Council",

pages = "301--304",

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address = "United States",

}

TY - GEN

T1 - EXPERIMENTAL STUDY ON THE SILICA DEPOSITION IN A POROUS MEDIUM.

AU - Itoi, Ryuichi

AU - Maekawa, Hiroaki

AU - Fukuda, Michihiro

AU - Jinno, Kenji

AU - Hatanaka, Koichiro

AU - Yokoyama, Takushi

AU - Shimizu, Shin

PY - 1984

Y1 - 1984

N2 - The decrease in permeability of a porous column (50 cm long and 5 cm in diameter) in a cylinder due to the deposition of silica scale has been examined. The temperature of the Otake water used for the experiment was 90-92 degree C and contained 522 ppm of silica. Permeability was calculated using the potential measured by 11 manometers which are set at various levels in the cylinder. The results indicate that the most of the silica scale was deposited within the first 10 cm of the porous medium and thereafter rapidly decreased in amount. In inverse proportion to the amount of silica deposits, the permeability was reduced to 0. 5-2 % in the uppermost part of the porous medium whereas it retained 80-90 % of the initial value in the places distant from the upper surface.

AB - The decrease in permeability of a porous column (50 cm long and 5 cm in diameter) in a cylinder due to the deposition of silica scale has been examined. The temperature of the Otake water used for the experiment was 90-92 degree C and contained 522 ppm of silica. Permeability was calculated using the potential measured by 11 manometers which are set at various levels in the cylinder. The results indicate that the most of the silica scale was deposited within the first 10 cm of the porous medium and thereafter rapidly decreased in amount. In inverse proportion to the amount of silica deposits, the permeability was reduced to 0. 5-2 % in the uppermost part of the porous medium whereas it retained 80-90 % of the initial value in the places distant from the upper surface.

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M3 - Conference contribution

AN - SCOPUS:0021621797

SN - 0934412588

T3 - Transactions - Geothermal Resources Council

SP - 301

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BT - Transactions - Geothermal Resources Council

PB - Geothermal Resources Council

ER -

EXPERIMENTAL STUDY ON THE SILICA DEPOSITION IN A POROUS MEDIUM.

Abstract

Publication series

All Science Journal Classification (ASJC) codes

UN SDGs

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