Valve Location Method for Evaluating Drain Efficiency in Water Transmission Pipelines
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 w...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Water |
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| Online Access: | https://www.mdpi.com/2073-4441/12/10/2759 |
| _version_ | 1797551845275598848 |
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| author | Byoung-Ho Shin Doo Yong Choi Kwansue Jung Zong Woo Geem |
| author_facet | Byoung-Ho Shin Doo Yong Choi Kwansue Jung Zong Woo Geem |
| author_sort | Byoung-Ho Shin |
| collection | DOAJ |
| description | 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. |
| first_indexed | 2024-03-10T15:51:53Z |
| format | Article |
| id | doaj.art-921c815d7c914de0899fb1c0ea3b42e5 |
| institution | Directory Open Access Journal |
| issn | 2073-4441 |
| language | English |
| last_indexed | 2024-03-10T15:51:53Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Water |
| spelling | doaj.art-921c815d7c914de0899fb1c0ea3b42e52023-11-20T16:00:45ZengMDPI AGWater2073-44412020-10-011210275910.3390/w12102759Valve Location Method for Evaluating Drain Efficiency in Water Transmission PipelinesByoung-Ho Shin0Doo Yong Choi1Kwansue Jung2Zong Woo Geem3Korea Water Resources Corporation (K-water), Daejeon 34045, KoreaKorea Water Resources Corporation (K-water), Daejeon 34045, KoreaDepartment of Civil Engineering, Chungnam National University, Daejeon 34134, KoreaDepartment of Energy IT, Gachon University, Seongnam 13120, KoreaWater 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.https://www.mdpi.com/2073-4441/12/10/2759water transmissiondrain efficiencyvalve locationdrainage timepipe breakage |
| spellingShingle | Byoung-Ho Shin Doo Yong Choi Kwansue Jung Zong Woo Geem Valve Location Method for Evaluating Drain Efficiency in Water Transmission Pipelines Water water transmission drain efficiency valve location drainage time pipe breakage |
| title | Valve Location Method for Evaluating Drain Efficiency in Water Transmission Pipelines |
| title_full | Valve Location Method for Evaluating Drain Efficiency in Water Transmission Pipelines |
| title_fullStr | Valve Location Method for Evaluating Drain Efficiency in Water Transmission Pipelines |
| title_full_unstemmed | Valve Location Method for Evaluating Drain Efficiency in Water Transmission Pipelines |
| title_short | Valve Location Method for Evaluating Drain Efficiency in Water Transmission Pipelines |
| title_sort | valve location method for evaluating drain efficiency in water transmission pipelines |
| topic | water transmission drain efficiency valve location drainage time pipe breakage |
| url | https://www.mdpi.com/2073-4441/12/10/2759 |
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