Water Atomization Characteristics in Crossflow Type Fog Nozzle and Water Flux Distribution of Fog Flow Ejected from It
| Autor: | Masashi Mitsutsuka, Keiji Fukuda |
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| Rok vydání: | 1981 |
| Předmět: | |
| Zdroj: | Transactions of the Iron and Steel Institute of Japan. 21:596-602 |
| ISSN: | 1881-1183 0021-1583 |
| Popis: | For forced cooling of hot steel products, air-atomized fog cooling is suitable, particularly for modest cooling between forced-air cooling and water-spray cooling. When used in steel processing lines, conventional fog nozzles fail in providing proper fog in a short time because the small holes in the nozzles are susceptible to clogging. Furthermore, there are some problems with high air consumption and high noise levels during high-pressure atomizing.An improved fog nozzle is capable of atomizing water with air pressure as low as 300 to 1 000mm H2O. This simple structure nozzle features an air pipe with a water pipe attached at right angles. One of the advantages of this nozzle is its capability of feeding water in a wide range, 0.1 to 10l/min, through a relatively large water hole with a 3 to 6mm inside diameter.This report describes the design of this nozzle. The characteristics of a single, fog flow ejected from this nozzle, including its atomizing behaviors, fog profile, water flux distribution in the fog flow, effects of water and air pressures on atomization, are discussed. |
| Databáze: | OpenAIRE |
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