Anti-Condensation Temperature Control Strategy of the Concrete Radiant Roof
Radiation cooling, as a new terminal mode that has been gradually emerging in recent years, has attracted more and more attention. However, the problem of condensation has become a vital bottleneck restricting the broad application of radiation-cooling technology. This paper used the numerical simul...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-06-01
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| Series: | Energies |
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| Online Access: | https://www.mdpi.com/1996-1073/16/12/4826 |
| _version_ | 1797595069008576512 |
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| author | Bobo Zhang Qin Sun Lin Su Kaijun Dong Weimin Luo Haifeng Guan Zhenhua Shao Wei Wu |
| author_facet | Bobo Zhang Qin Sun Lin Su Kaijun Dong Weimin Luo Haifeng Guan Zhenhua Shao Wei Wu |
| author_sort | Bobo Zhang |
| collection | DOAJ |
| description | Radiation cooling, as a new terminal mode that has been gradually emerging in recent years, has attracted more and more attention. However, the problem of condensation has become a vital bottleneck restricting the broad application of radiation-cooling technology. This paper used the numerical simulation method of Ansys Fluent to study the effect of different water supply parameters on the concrete radiant roof’s heat transfer performance, temperature uniformity analysis, and anti-condensation temperature control strategy. The accuracy of the simulation model was verified by comparing the numerical simulation values and measured values of temperature monitoring points. In thermal performance research, the inlet temperature significantly impacted the cooling capacity and radiant surface temperature compared with the inlet flow velocity. In the uniformity study, the distance between the serpentine pipes area and the concrete edge was easily neglected, which was also an important factor affecting the distribution of temperature uniformity. Regarding anti-condensation and performance improvement research, first supplying water at low temperatures and then dynamically adjusting high-temperature water could effectively avoid condensation and improve the radiant roof’s heat transfer performance. The research results could provide technical references for the practical application of radiation roof anti-condensation temperature control technology. |
| first_indexed | 2024-03-11T02:31:11Z |
| format | Article |
| id | doaj.art-dc1c2cc6c3ab473590714b87b99068f3 |
| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-11T02:31:11Z |
| publishDate | 2023-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-dc1c2cc6c3ab473590714b87b99068f32023-11-18T10:14:36ZengMDPI AGEnergies1996-10732023-06-011612482610.3390/en16124826Anti-Condensation Temperature Control Strategy of the Concrete Radiant RoofBobo Zhang0Qin Sun1Lin Su2Kaijun Dong3Weimin Luo4Haifeng Guan5Zhenhua Shao6Wei Wu7Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, ChinaGuangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, ChinaGuangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, ChinaGuangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, ChinaGuangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, ChinaGuangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, ChinaGuangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangzhou 510640, ChinaSchool of Energy and Environment, City University of Hong Kong, Hong Kong, ChinaRadiation cooling, as a new terminal mode that has been gradually emerging in recent years, has attracted more and more attention. However, the problem of condensation has become a vital bottleneck restricting the broad application of radiation-cooling technology. This paper used the numerical simulation method of Ansys Fluent to study the effect of different water supply parameters on the concrete radiant roof’s heat transfer performance, temperature uniformity analysis, and anti-condensation temperature control strategy. The accuracy of the simulation model was verified by comparing the numerical simulation values and measured values of temperature monitoring points. In thermal performance research, the inlet temperature significantly impacted the cooling capacity and radiant surface temperature compared with the inlet flow velocity. In the uniformity study, the distance between the serpentine pipes area and the concrete edge was easily neglected, which was also an important factor affecting the distribution of temperature uniformity. Regarding anti-condensation and performance improvement research, first supplying water at low temperatures and then dynamically adjusting high-temperature water could effectively avoid condensation and improve the radiant roof’s heat transfer performance. The research results could provide technical references for the practical application of radiation roof anti-condensation temperature control technology.https://www.mdpi.com/1996-1073/16/12/4826radiation coolingconcrete radiant roofserpentine pipeanti-condensationtemperature controlcomputational fluid dynamics |
| spellingShingle | Bobo Zhang Qin Sun Lin Su Kaijun Dong Weimin Luo Haifeng Guan Zhenhua Shao Wei Wu Anti-Condensation Temperature Control Strategy of the Concrete Radiant Roof Energies radiation cooling concrete radiant roof serpentine pipe anti-condensation temperature control computational fluid dynamics |
| title | Anti-Condensation Temperature Control Strategy of the Concrete Radiant Roof |
| title_full | Anti-Condensation Temperature Control Strategy of the Concrete Radiant Roof |
| title_fullStr | Anti-Condensation Temperature Control Strategy of the Concrete Radiant Roof |
| title_full_unstemmed | Anti-Condensation Temperature Control Strategy of the Concrete Radiant Roof |
| title_short | Anti-Condensation Temperature Control Strategy of the Concrete Radiant Roof |
| title_sort | anti condensation temperature control strategy of the concrete radiant roof |
| topic | radiation cooling concrete radiant roof serpentine pipe anti-condensation temperature control computational fluid dynamics |
| url | https://www.mdpi.com/1996-1073/16/12/4826 |
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