A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Study on Enhancing the Performance of Unglazed Solar Air Collector by Attached Jet
https://orcid.org/http://orcid.org/0000-0001-8702-6673
https://orcid.org/http://orcid.org/0000-0001-7491-7899
https://orcid.org/http://orcid.org/0000-0003-0115-9876
https://orcid.org/http://orcid.org/0000-0003-3186-4314
This paper creatively designs a unglazed solar air collector using attached jet to enhance heat transfer. The collector enhances the heat exchange between air and Heat collector plate by creating a specific structure to block and reflect the jet and make it impact the heat collector plate. The structure can not only strengthen the heat exchange, solve the problems of insufficient heat exchange and heat loss of direct exposure to the environment of the unglazed heat collector, but also make up for the reduced effective heat collection area due to the opening on the heat collector plate. Through the simulation and analysis of the internal flow and heat transfer characteristics of the collector, it is found that the attached jet effect is obvious, which can better improve the above problems of the unglazed collector. The effects of slit width and baffle diameter on heat collection efficiency are analyzed by numerical simulation. Finally, the experiments showed that the collector’s heat collection efficiency remained stable throughout the day, significantly improving the thermal performance of the traditional unglazed permeable solar collector.
Study on Enhancing the Performance of Unglazed Solar Air Collector by Attached Jet
https://orcid.org/http://orcid.org/0000-0001-8702-6673
https://orcid.org/http://orcid.org/0000-0001-7491-7899
https://orcid.org/http://orcid.org/0000-0003-0115-9876
https://orcid.org/http://orcid.org/0000-0003-3186-4314
This paper creatively designs a unglazed solar air collector using attached jet to enhance heat transfer. The collector enhances the heat exchange between air and Heat collector plate by creating a specific structure to block and reflect the jet and make it impact the heat collector plate. The structure can not only strengthen the heat exchange, solve the problems of insufficient heat exchange and heat loss of direct exposure to the environment of the unglazed heat collector, but also make up for the reduced effective heat collection area due to the opening on the heat collector plate. Through the simulation and analysis of the internal flow and heat transfer characteristics of the collector, it is found that the attached jet effect is obvious, which can better improve the above problems of the unglazed collector. The effects of slit width and baffle diameter on heat collection efficiency are analyzed by numerical simulation. Finally, the experiments showed that the collector’s heat collection efficiency remained stable throughout the day, significantly improving the thermal performance of the traditional unglazed permeable solar collector.
Study on Enhancing the Performance of Unglazed Solar Air Collector by Attached Jet
https://orcid.org/http://orcid.org/0000-0001-8702-6673
https://orcid.org/http://orcid.org/0000-0001-7491-7899
https://orcid.org/http://orcid.org/0000-0003-0115-9876
https://orcid.org/http://orcid.org/0000-0003-3186-4314
This paper creatively designs a unglazed solar air collector using attached jet to enhance heat transfer. The collector enhances the heat exchange between air and Heat collector plate by creating a specific structure to block and reflect the jet and make it impact the heat collector plate. The structure can not only strengthen the heat exchange, solve the problems of insufficient heat exchange and heat loss of direct exposure to the environment of the unglazed heat collector, but also make up for the reduced effective heat collection area due to the opening on the heat collector plate. Through the simulation and analysis of the internal flow and heat transfer characteristics of the collector, it is found that the attached jet effect is obvious, which can better improve the above problems of the unglazed collector. The effects of slit width and baffle diameter on heat collection efficiency are analyzed by numerical simulation. Finally, the experiments showed that the collector’s heat collection efficiency remained stable throughout the day, significantly improving the thermal performance of the traditional unglazed permeable solar collector.
Study on Enhancing the Performance of Unglazed Solar Air Collector by Attached Jet
Lecture Notes in Civil Engineering
Guo, Wei (editor) / Qian, Kai (editor) / Jin, Jian (author) / Hu, Jianjun (author) / Hu, Gui (author) / Du, Shenghua (author)
International Conference on Green Building, Civil Engineering and Smart City ; 2022 ; Guilin, China
2022-09-08
10 pages
Article/Chapter (Book)
Electronic Resource
English
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