Experimental Study on the Condensation of Steam With Air Out of the Vertical Tube Bundles
In this paper, experimental study was carried out in an open natural circulation loop, to figure out the condensation heat transfer characteristic on the outside of the vertical pipe tube bundle and single- tube. Condensation heat transfer coefficients have been obtained under the wall subcooling ra...
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| Format: | Article |
| Language: | English |
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Frontiers Media S.A.
2018-05-01
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| Series: | Frontiers in Energy Research |
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| Online Access: | https://www.frontiersin.org/article/10.3389/fenrg.2018.00032/full |
| _version_ | 1811209159977205760 |
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| author | Lu Wang Ping Chen Yi Zhou Wei Li Changbing Tang Yifei Miao Zhaoming Meng |
| author_facet | Lu Wang Ping Chen Yi Zhou Wei Li Changbing Tang Yifei Miao Zhaoming Meng |
| author_sort | Lu Wang |
| collection | DOAJ |
| description | In this paper, experimental study was carried out in an open natural circulation loop, to figure out the condensation heat transfer characteristic on the outside of the vertical pipe tube bundle and single- tube. Condensation heat transfer coefficients have been obtained under the wall subcooling ranging from 5 to 22°C, total pressure ranging from 0.3 to 0.6 MPa and air mass fraction ranging from 0.05 to 0.65. The influence of mixed gas pressure, condensate depression of walls, and content of non-condensable gas on the condensation heat transfer performance is analyzed. Under the condition of the same air mass fraction, the condensation heat transfer coefficient increases with the increase of pressure. Also, as the air mass fraction is more than 30%, the effect of pressure will be weakened. The heat transfer features of pipe bundle and single tube is compared and studied, and an empirical correlation of the pipe bundle for the heattransfer coefficient is developed, covered all data points within 10%. According to the research results, heat transfer coefficient for pipe bundle decreases with the increase in non-condensable gas quality and wall subcooling, but increases with the increase in pressure. |
| first_indexed | 2024-04-12T04:33:38Z |
| format | Article |
| id | doaj.art-9cc4eee5b0d746b396e49093179c1b75 |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-04-12T04:33:38Z |
| publishDate | 2018-05-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-9cc4eee5b0d746b396e49093179c1b752022-12-22T03:47:51ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2018-05-01610.3389/fenrg.2018.00032363945Experimental Study on the Condensation of Steam With Air Out of the Vertical Tube BundlesLu Wang0Ping Chen1Yi Zhou2Wei Li3Changbing Tang4Yifei Miao5Zhaoming Meng6Science and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, ChinaScience and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, ChinaScience and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, ChinaScience and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, ChinaScience and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, ChinaScience and Technology on Reactor System Design Technology Laboratory, Nuclear Power Institute of China, Chengdu, ChinaFundamental Science on Nuclear Safety and Simulation Technology Laboratory, Harbin Engineering University, Heilongjiang, ChinaIn this paper, experimental study was carried out in an open natural circulation loop, to figure out the condensation heat transfer characteristic on the outside of the vertical pipe tube bundle and single- tube. Condensation heat transfer coefficients have been obtained under the wall subcooling ranging from 5 to 22°C, total pressure ranging from 0.3 to 0.6 MPa and air mass fraction ranging from 0.05 to 0.65. The influence of mixed gas pressure, condensate depression of walls, and content of non-condensable gas on the condensation heat transfer performance is analyzed. Under the condition of the same air mass fraction, the condensation heat transfer coefficient increases with the increase of pressure. Also, as the air mass fraction is more than 30%, the effect of pressure will be weakened. The heat transfer features of pipe bundle and single tube is compared and studied, and an empirical correlation of the pipe bundle for the heattransfer coefficient is developed, covered all data points within 10%. According to the research results, heat transfer coefficient for pipe bundle decreases with the increase in non-condensable gas quality and wall subcooling, but increases with the increase in pressure.https://www.frontiersin.org/article/10.3389/fenrg.2018.00032/fullnatural circulationtube bundlesair-containing steamcondensation heat transferexperimental investigation |
| spellingShingle | Lu Wang Ping Chen Yi Zhou Wei Li Changbing Tang Yifei Miao Zhaoming Meng Experimental Study on the Condensation of Steam With Air Out of the Vertical Tube Bundles Frontiers in Energy Research natural circulation tube bundles air-containing steam condensation heat transfer experimental investigation |
| title | Experimental Study on the Condensation of Steam With Air Out of the Vertical Tube Bundles |
| title_full | Experimental Study on the Condensation of Steam With Air Out of the Vertical Tube Bundles |
| title_fullStr | Experimental Study on the Condensation of Steam With Air Out of the Vertical Tube Bundles |
| title_full_unstemmed | Experimental Study on the Condensation of Steam With Air Out of the Vertical Tube Bundles |
| title_short | Experimental Study on the Condensation of Steam With Air Out of the Vertical Tube Bundles |
| title_sort | experimental study on the condensation of steam with air out of the vertical tube bundles |
| topic | natural circulation tube bundles air-containing steam condensation heat transfer experimental investigation |
| url | https://www.frontiersin.org/article/10.3389/fenrg.2018.00032/full |
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