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MITSUNAGA TAKEHIKO
Department Undergraduate School , School of Science and Technology Position Senior Assistant Professor |
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| Language | Japanese |
| Publication Date | 2014 |
| Type | Academic Journal |
| Peer Review | Peer reviewed |
| Title | Evaluation Method for Pressure in Pipes against Trap Seal Loss : Part 1-Analysis of Effects of Pressure Waveform on Seal Water |
| Contribution Type | Co-authored (other than first author) |
| Journal | Techinical Papers of Annual Meeting the Society of Heating,Air-conditioning and Sanitary Engineers o |
| Journal Type | Japan |
| Volume, Issue, Page | pp.1-8 |
| Author and coauthor | FUJIMURA Kazuya;SAKAUE Kyosuke;TOYAMA Takayuki;KURIYAMA Hana;MITSUNAGA Takehiko |
| Details | SHASE-S218_<-2008> (Heating, Air-Conditioning, and Sanitary Standard) stipulates that the evaluated drainage system performance should fall within ±400 Pa. However, the vibration and loss of trap seal water should be regarded as vibration reply phenomena, which are produced by pressure forces in the pipe, and the standard value is not necessarily optimal. Therefore we built a stack vent drainage system in a full-scale drainage experiment tower to carry out an experiment under a constant discharge load. We analyzed the relationship between vibrations from the pipe pressure and seal for three types of test traps and classified the pressure vibration waveform into three categories: pulse wave, resonance wave, and standing wave. We then clarified the influences that each type of pressure vibration exerted on the seal vibration. |
| DOI | 10.18948/shase.39.206_1 |
| ISSN | 0385-275X |
| NAID | 110009975433 |