2013 Fiscal Year Final Research Report
STUDY ON PREDICTION METHOD OF ACOUSTIC RESONANCE IN HEAT EXCHANGER TUBE BUNDLES
| Project/Area Number |
23560270
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Dynamics/Control
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| Research Institution | Shonan Institute of Technology |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
HAMAKAWA Hiromitsu 大分大学, 教授 (30243893)
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| Project Period (FY) |
2011 – 2013
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| Keywords | 共鳴 / 熱交換器 / 伝熱管群 / カルマン渦 / 渦ー音響相互作用 / 同期化 / 自励振動 |
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| Research Abstract |
Acoustic resonance may occur in heat exchangers such as gas heaters or boilers which contain tube bundles. When the gas flow in the duct increases to some level, Karman vortex shedding frequency increases and when it reaches to the natural frequency of the acoustic space within the duct, the resonance have a potential to generate high level noise and in the worst case, this phenomenon may make it impossible to load up the plants or may cause the structural damage of the products.In order to avoid a trouble by a resonance attack, we developed a method by which to predict the resonance attack critical gas flow velocity and maximum resonance amplitude at the design stage.
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Research Products
(10 results)
