Inclined Injection of Supersonic Steam into Subcooled Water: A CFD Analysis
The phenomenon of direct-contact condensation gains attention because of various industrial applications; nuclear reactor emergency core cooling systems,steam driven jet injectors, direct-contact heat exchangers etc..The phenomenon was investigated computationally by injecting an inclined steam j...
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| Main Authors: | , , , , |
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| Format: | E-Article |
| Language: | English |
| Published: |
Trans Tech Publications, Switzerland
2014
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| Subjects: | |
| Online Access: | http://ir.unimas.my/id/eprint/9172/1/Inclined%20Injection%20of%20Supersonic%20Steam%20into%20subcooled%20water%20%28abstract%29.pdf http://ir.unimas.my/id/eprint/9172/ |
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| Summary: | The phenomenon of direct-contact condensation gains attention because of various
industrial applications; nuclear reactor emergency core cooling systems,steam driven jet injectors,
direct-contact heat exchangers etc..The phenomenon was investigated computationally by injecting
an inclined steam jet using a supersonic nozzle submerged in subcooled water. The condensation
mechanism is based on two resistance model, which involves consideration of the heat transfer
process on both sides of the interface along with use of a variable steam bubble diameter. For
computations, ANSYS Fluent based Euler-Euler multiphase model is used. The angle of inclination
varies from 5o to 45o at constant inlet pressure of 7 bars with water temperature of 30oC. The
maximum penetration length is achieved using a right angled vertical injection. |
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