Scipediacontent: Scipediacontent moved page Draft Content 906684372 to Choi et al 2020a

2021-02-15T09:28:54Z

Scipediacontent moved page Draft Content 906684372 to Choi et al 2020a

Scipediacontent: Created page with " == Abstract == Water transmission pipelines, which transport bulk water into storage facilities, usually have a tree-type configuration with large dimensions; thus, the brea..."

2021-02-15T09:28:52Z

Created page with " == Abstract == Water transmission pipelines, which transport bulk water into storage facilities, usually have a tree-type configuration with large dimensions; thus, the brea..."

New page

== Abstract ==

Water transmission pipelines, which transport bulk water into storage facilities, usually have a tree-type configuration with large dimensions; thus, the breakage of a pipeline may cause a catastrophic service interruption to customers. Although drain efficiency is closely related to the number of washout and control valves and their locations, there is no useful guideline. This paper proposes a valve locating method by introducing numerical analyses to enumerate drainage time and zone. A time integration method, combined with the Newton–Raphson algorithm, is suggested to resolve drainage time, while considering the friction loss in gravitational flow. A drain direction matrix, which shows drain direction and coverage, is derived using a network searching algorithm. Furthermore, a feasible practical approach is presented by introducing a critical horizontal slope, a major washout valve, drainage indices, and control valve embedment. The developed method is first applied to simple pipes to validate the drainage time module. Subsequently, the model is expanded to the CY transmission line, which is one of the BR water supply systems in South Korea currently in operation. The results reveal that three drain valve locations have been neglected, and the addition of control valves guarantees consistent drain time below the operational criteria.

Document type: Article

== Full document ==
<pdf>Media:Draft_Content_906684372-beopen738-7519-document.pdf</pdf>

== Original document ==

The different versions of the original document can be found in:

* [https://www.mdpi.com/2073-4441/12/10/2759/pdf https://www.mdpi.com/2073-4441/12/10/2759/pdf] under the license https://creativecommons.org/licenses/by

* [https://www.mdpi.com/2073-4441/12/10/2759 https://www.mdpi.com/2073-4441/12/10/2759],
: [https://doaj.org/toc/2073-4441 https://doaj.org/toc/2073-4441] under the license cc-by

* [https://www.mdpi.com/2073-4441/12/10/2759 https://www.mdpi.com/2073-4441/12/10/2759],
: [https://www.mdpi.com/2073-4441/12/10/2759/pdf https://www.mdpi.com/2073-4441/12/10/2759/pdf],
: [https://academic.microsoft.com/#/detail/3091563651 https://academic.microsoft.com/#/detail/3091563651]

* [https://www.mdpi.com/2073-4441/12/10/2759/pdf https://www.mdpi.com/2073-4441/12/10/2759/pdf],
: [http://dx.doi.org/10.3390/w12102759 http://dx.doi.org/10.3390/w12102759]

under the license https://creativecommons.org/licenses/by/4.0/

← Older revision	Revision as of 09:28, 15 February 2021
(No difference)

Choi et al 2020a - Revision history

Scipediacontent: Scipediacontent moved page Draft Content 906684372 to Choi et al 2020a

Scipediacontent: Created page with " == Abstract == Water transmission pipelines, which transport bulk water into storage facilities, usually have a tree-type configuration with large dimensions; thus, the brea..."