Evaluation Method of Head Loss in a Pipe with Internal Leaking Preventive Joint Bands
-
- MATSUDA Ryoji
- Sanyu Consultants Inc.
-
- NAMIHIRA Atsushi
- Institute for Rural Engineering, NARO
-
- TARUYA Hiroyuki
- Institute for Rural Engineering, NARO
-
- INOSAKO Koji
- Faculty of Agriculture, Tottori University
Bibliographic Information
- Other Title
-
- 複数の止水バンド施工による損失水頭の評価方法
- フクスウ ノ シスイ バンド セコウ ニ ヨル ソンシツスイトウ ノ ヒョウカ ホウホウ
Search this article
Description
<p>As an emergency measure in a sudden pipeline leak accident, an internal leaking preventive joint band is installed on a target section’s pipe joint. This band is often used alone; however, sometimes bands are arranged in series on a pipe for preventive maintenance. Although continuous installation of bands may cause a large head loss, a method of evaluating this head loss has yet to be established. This study investigated the optimum evaluation methods of head loss with arranging some bands in series and using it alone by hydraulic model experiments using the band of 3-mm thick. Our results found that head loss caused by arranging bands in a series can be calculated by adding the head loss of each band by the number of installation points, and the ordinary method―the formula for sudden contraction and expansion overestimates the band’s loss factor.</p>
Journal
-
- Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering
-
Transactions of The Japanese Society of Irrigation, Drainage and Rural Engineering 86 (1), II_47-II_53, 2018
The Japanese Society of Irrigation, Drainage and Rural Engineering
- Tweet
Keywords
Details 詳細情報について
-
- CRID
- 1390564237991792256
-
- NII Article ID
- 40021635903
- 130007398472
-
- NII Book ID
- AA12240517
-
- ISSN
- 18847242
- 18822789
-
- NDL BIB ID
- 029165919
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- IRDB
- NDL
- CiNii Articles
-
- Abstract License Flag
- Disallowed