Falling behavior and control effect on temperature rise under heating condition concerning water film flow on steel shutter surface
Abstract A series of experiments were carried out on water film flow formed by a water discharge system on the surface of steel shutters. The experiments used three types of steel shutters for fire protection. The rates for water Ws supplied to the steel shutter from the slit of the water discharge...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Wiley
2020-10-01
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| Series: | Japan Architectural Review |
| Subjects: | |
| Online Access: | https://doi.org/10.1002/2475-8876.12174 |
| _version_ | 1818430213924585472 |
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| author | Yoshifumi Ohmiya Manabu Tange Kohji Nakamura Yuya Miyazawa |
| author_facet | Yoshifumi Ohmiya Manabu Tange Kohji Nakamura Yuya Miyazawa |
| author_sort | Yoshifumi Ohmiya |
| collection | DOAJ |
| description | Abstract A series of experiments were carried out on water film flow formed by a water discharge system on the surface of steel shutters. The experiments used three types of steel shutters for fire protection. The rates for water Ws supplied to the steel shutter from the slit of the water discharge system was changed. First, the water film flow that formed on the convex surfaces of the main curved parts of connected shutter slats was observed under non‐heating conditions. Then, the velocity of water film flow on the surface of steel shutter was analyzed by direct cross‐correlation method using PIV system. Next, the temperature distribution and other parameters of the water film flow were investigated under heating conditions using a radiation panel. The heating condition was changed by adjusting the separation distance between the radiation panel and the test specimen. To measure the temperatures on the non‐heated side of the test specimen, K‐type thermocouples were used. Fundamental knowledge was obtained about the behavior of water film flow on steel shutter surfaces under non‐heating conditions as well as the thermal insulation and other effects of the water film under heating conditions. |
| first_indexed | 2024-12-14T15:29:51Z |
| format | Article |
| id | doaj.art-54568ccb99744b42a02bade42ac4eb09 |
| institution | Directory Open Access Journal |
| issn | 2475-8876 |
| language | English |
| last_indexed | 2024-12-14T15:29:51Z |
| publishDate | 2020-10-01 |
| publisher | Wiley |
| record_format | Article |
| series | Japan Architectural Review |
| spelling | doaj.art-54568ccb99744b42a02bade42ac4eb092022-12-21T22:55:55ZengWileyJapan Architectural Review2475-88762020-10-013464665610.1002/2475-8876.12174Falling behavior and control effect on temperature rise under heating condition concerning water film flow on steel shutter surfaceYoshifumi Ohmiya0Manabu Tange1Kohji Nakamura2Yuya Miyazawa3Department of Architecture Faculty of Science and Technology Tokyo University of Science Noda Chiba JapanDepartment of Mechanical Engineering Faculty of Engineering Shibaura Institute of Technology Tokyo JapanDepartment of Architecture Faculty of Science and Technology Tokyo University of Science Noda Chiba JapanTakenaka Corporation Osaka JapanAbstract A series of experiments were carried out on water film flow formed by a water discharge system on the surface of steel shutters. The experiments used three types of steel shutters for fire protection. The rates for water Ws supplied to the steel shutter from the slit of the water discharge system was changed. First, the water film flow that formed on the convex surfaces of the main curved parts of connected shutter slats was observed under non‐heating conditions. Then, the velocity of water film flow on the surface of steel shutter was analyzed by direct cross‐correlation method using PIV system. Next, the temperature distribution and other parameters of the water film flow were investigated under heating conditions using a radiation panel. The heating condition was changed by adjusting the separation distance between the radiation panel and the test specimen. To measure the temperatures on the non‐heated side of the test specimen, K‐type thermocouples were used. Fundamental knowledge was obtained about the behavior of water film flow on steel shutter surfaces under non‐heating conditions as well as the thermal insulation and other effects of the water film under heating conditions.https://doi.org/10.1002/2475-8876.12174particle image velocimetrysteel shutterthermal insulationwater discharge systemwater film flow |
| spellingShingle | Yoshifumi Ohmiya Manabu Tange Kohji Nakamura Yuya Miyazawa Falling behavior and control effect on temperature rise under heating condition concerning water film flow on steel shutter surface Japan Architectural Review particle image velocimetry steel shutter thermal insulation water discharge system water film flow |
| title | Falling behavior and control effect on temperature rise under heating condition concerning water film flow on steel shutter surface |
| title_full | Falling behavior and control effect on temperature rise under heating condition concerning water film flow on steel shutter surface |
| title_fullStr | Falling behavior and control effect on temperature rise under heating condition concerning water film flow on steel shutter surface |
| title_full_unstemmed | Falling behavior and control effect on temperature rise under heating condition concerning water film flow on steel shutter surface |
| title_short | Falling behavior and control effect on temperature rise under heating condition concerning water film flow on steel shutter surface |
| title_sort | falling behavior and control effect on temperature rise under heating condition concerning water film flow on steel shutter surface |
| topic | particle image velocimetry steel shutter thermal insulation water discharge system water film flow |
| url | https://doi.org/10.1002/2475-8876.12174 |
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