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A novel disinfected Trombe wall for space heating and virus inactivation: Concept and performance investigation.
Xie, Hao; Yu, Bendong; Wang, Jun; Ji, Jie.
  • Xie H; Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230026, China.
  • Yu B; College of Urban Construction, Nanjing Tech University, Nanjing 210009, Jiangsu, China.
  • Wang J; Anhui Province Key Laboratory of Human Safety, Hefei City, Anhui Province, 230602, China.
  • Ji J; Department of Thermal Science and Energy Engineering, University of Science and Technology of China, Hefei 230026, China.
Appl Energy ; 291: 116789, 2021 Jun 01.
Article in English | MEDLINE | ID: covidwho-1141609
ABSTRACT
Trombe wall is a simple and mature passive solar building design while its utilization of solar energy is limited to space heating. Aerosol transmission, as a potential transmission pathway of COVID-19, poses a serious threat to the public health especially in a closed indoor environment. The thermal disinfection of virus, which can be easily integrated into solar systems, seems to be a suitable method for controlling bioaerosols. Therefore, a novel disinfected Trombe wall for virus inactivation and space heating is proposed, providing a potential way to fight the current COVID-19 pandemic. After the proposal of the concept, its performance on space heating and virus inactivation was investigated through experimental and simulation methods. The main results were as follows (1) The average thermal efficiency was 0.457 and the average indoor temperature was 20.7 ℃, 1.9 ℃ higher than the ambient temperature. (2) The maximum single-pass inactivation ratio was 0.893, 0.591 and 0.893 while the total production of clean air was 112.3, 63.8 and 114.7 m3 for SARS-CoV-1, SARS-CoV-2 and MERS-CoV, respectively. (3) The increase of ambient temperature or solar irradiance may enhance the thermal efficiency while the former has little effect on the thermal disinfection process. (4) Extending the height or narrowing the thickness of the duct by 40% may contribute to an increase in total production of clean air by 510 m3 or 681 m3 per unit area during the heating seasons, but the later may cause a larger decrease (about 8%) in the heat gain of indoor air.
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Full text: Available Collection: International databases Database: MEDLINE Language: English Journal: Appl Energy Year: 2021 Document Type: Article Affiliation country: J.apenergy.2021.116789

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Full text: Available Collection: International databases Database: MEDLINE Language: English Journal: Appl Energy Year: 2021 Document Type: Article Affiliation country: J.apenergy.2021.116789