Analysis on Flow Field and Heat Transfer of Corrugated Filler Used in Evaporative Condenser
The CFD software was applied to conduct the numerical simulation for predicting the air velocity, pressure, and temperature，humidity ratio in the corrugated filler which was used in evaporative condenser. And then studies on influencing factors of humidity ratio, pressure difference and surface heat...
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| Main Authors: | , , , |
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| Format: | Article |
| Language: | zho |
| Published: |
Journal of Refrigeration Magazines Agency Co., Ltd.
2014-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2014.03.090 |
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| Summary: | The CFD software was applied to conduct the numerical simulation for predicting the air velocity, pressure, and temperature，humidity ratio in the corrugated filler which was used in evaporative condenser. And then studies on influencing factors of humidity ratio, pressure difference and surface heat transfer coefficient, i.e., filler space, air velocity and mass flux of cooling water were conducted. Simulation results were verified through experiments, and the error was less than 5%. The results showed that with the increasing filler space, humidity ratio of outlet air decreased after the first increase, and pressure difference decreased from 900Pa to 50Pa. Surface heat transfer coefficient increased with increasing air velocity, and humidity ratio of outlet air decreased from 24 g/kg to 23 g/kg. With the increase of mass flux of cooling water, humidity ratio of outlet air changed from 23.1 g/kg to 24 g/kg and surface heat transfer coefficient decreased 15.2 W/（m2?K）to 14.6 W/（m2?K）. It contributed to heat and mass transfer and lower energy consumption when filler space was 6mm, air velocity was 2m/s and mass flux of cooling water was 0.025 kg/s. |
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| ISSN: | 0253-4339 |