Experimental study on helical tubes heat transfer characteristics considering corrosion products
During the power operation of nuclear reactors, the corrosion products in the secondary circuit will deposit on the inside of Helical-coiled One-Through Steam Generator (H-OTSG) heat transfer tubes and form fouling. The main component of fouling is iron-based oxide, which generates from the heat exc...
| Main Authors: | , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Frontiers Media S.A.
2023-10-01
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| Series: | Frontiers in Energy Research |
| Subjects: | |
| Online Access: | https://www.frontiersin.org/articles/10.3389/fenrg.2023.1289831/full |
| _version_ | 1797659596365496320 |
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| author | Mao Yulong Meng Shuqi Lu Xianghui Jin Desheng Wang Xiaoting Li Kejia Hu Yisong Hu Yousen Rui Min |
| author_facet | Mao Yulong Meng Shuqi Lu Xianghui Jin Desheng Wang Xiaoting Li Kejia Hu Yisong Hu Yousen Rui Min |
| author_sort | Mao Yulong |
| collection | DOAJ |
| description | During the power operation of nuclear reactors, the corrosion products in the secondary circuit will deposit on the inside of Helical-coiled One-Through Steam Generator (H-OTSG) heat transfer tubes and form fouling. The main component of fouling is iron-based oxide, which generates from the heat exchangers made of cast iron. Fouling may change the local heat transfer characteristics of heat transfer tubes, and then affect the safety and economy of reactors. In order to obtain the distribution of fouling thickness and its action mechanism on helical tubes heat transfer characteristics, the heat transfer experiment under small pressurized reactors service environment was conducted. The experimental results indicate: corrosion products mainly deposit on onset of saturated boiling point with the maximum fouling thickness of 50 μm, and induce local wall temperature elevating about 773 K; fouling will increase the thermal equilibrium void fraction and hinder the heat transfer of helical tube, but has little impact on the onset position of saturated boiling point; corrosion products will release and re-deposit near dry-out point because of the flush of high speed vapor, causing the periodic fluctuation of thermal resistance of helical tube. |
| first_indexed | 2024-03-11T18:17:26Z |
| format | Article |
| id | doaj.art-afee43b7edc643cab54b6a73797c87ef |
| institution | Directory Open Access Journal |
| issn | 2296-598X |
| language | English |
| last_indexed | 2024-03-11T18:17:26Z |
| publishDate | 2023-10-01 |
| publisher | Frontiers Media S.A. |
| record_format | Article |
| series | Frontiers in Energy Research |
| spelling | doaj.art-afee43b7edc643cab54b6a73797c87ef2023-10-16T05:54:57ZengFrontiers Media S.A.Frontiers in Energy Research2296-598X2023-10-011110.3389/fenrg.2023.12898311289831Experimental study on helical tubes heat transfer characteristics considering corrosion productsMao YulongMeng ShuqiLu XianghuiJin DeshengWang XiaotingLi KejiaHu YisongHu YousenRui MinDuring the power operation of nuclear reactors, the corrosion products in the secondary circuit will deposit on the inside of Helical-coiled One-Through Steam Generator (H-OTSG) heat transfer tubes and form fouling. The main component of fouling is iron-based oxide, which generates from the heat exchangers made of cast iron. Fouling may change the local heat transfer characteristics of heat transfer tubes, and then affect the safety and economy of reactors. In order to obtain the distribution of fouling thickness and its action mechanism on helical tubes heat transfer characteristics, the heat transfer experiment under small pressurized reactors service environment was conducted. The experimental results indicate: corrosion products mainly deposit on onset of saturated boiling point with the maximum fouling thickness of 50 μm, and induce local wall temperature elevating about 773 K; fouling will increase the thermal equilibrium void fraction and hinder the heat transfer of helical tube, but has little impact on the onset position of saturated boiling point; corrosion products will release and re-deposit near dry-out point because of the flush of high speed vapor, causing the periodic fluctuation of thermal resistance of helical tube.https://www.frontiersin.org/articles/10.3389/fenrg.2023.1289831/fullH-OTSGhelical tubeheat transferthermal resistancecorrosion products |
| spellingShingle | Mao Yulong Meng Shuqi Lu Xianghui Jin Desheng Wang Xiaoting Li Kejia Hu Yisong Hu Yousen Rui Min Experimental study on helical tubes heat transfer characteristics considering corrosion products Frontiers in Energy Research H-OTSG helical tube heat transfer thermal resistance corrosion products |
| title | Experimental study on helical tubes heat transfer characteristics considering corrosion products |
| title_full | Experimental study on helical tubes heat transfer characteristics considering corrosion products |
| title_fullStr | Experimental study on helical tubes heat transfer characteristics considering corrosion products |
| title_full_unstemmed | Experimental study on helical tubes heat transfer characteristics considering corrosion products |
| title_short | Experimental study on helical tubes heat transfer characteristics considering corrosion products |
| title_sort | experimental study on helical tubes heat transfer characteristics considering corrosion products |
| topic | H-OTSG helical tube heat transfer thermal resistance corrosion products |
| url | https://www.frontiersin.org/articles/10.3389/fenrg.2023.1289831/full |
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