Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
A Calculation Method of Convective Heat Transfer Coefficient in Ventilation Tunnels
The ventilation tunnel is an essential structure for ventilation and heat dissipation in underground buildings. Research on the calculation method of convective heat transfer coefficient in ventilation tunnels is of great significance for energy conservation in underground buildings. By comparing the theoretical equation for calculating convective heat transfer coefficient in pipes and the correlation equation for convective heat transfer coefficient in underground air ducts, a new correlation equation for calculating convective heat transfer coefficient in ventilation tunnels considering the thermal entrance effect is proposed. Through the analysis of measured data from a ventilation tunnel of hydropower Station in Guiyang and experimental data from a ventilation tunnel of a hydroelectric power station in Jiangxi mentioned, it is demonstrated that the proposed correlation equation is more accurate than the previous one. Simultaneously, the energy saving potential of multi-entrance ventilation tunnels is proved by the analysis of measured data, and the effect of heat transfer gain on the main ventilation tunnel caused by the secondary ventilation tunnel is proved by the proposed correlation equation.
A Calculation Method of Convective Heat Transfer Coefficient in Ventilation Tunnels
The ventilation tunnel is an essential structure for ventilation and heat dissipation in underground buildings. Research on the calculation method of convective heat transfer coefficient in ventilation tunnels is of great significance for energy conservation in underground buildings. By comparing the theoretical equation for calculating convective heat transfer coefficient in pipes and the correlation equation for convective heat transfer coefficient in underground air ducts, a new correlation equation for calculating convective heat transfer coefficient in ventilation tunnels considering the thermal entrance effect is proposed. Through the analysis of measured data from a ventilation tunnel of hydropower Station in Guiyang and experimental data from a ventilation tunnel of a hydroelectric power station in Jiangxi mentioned, it is demonstrated that the proposed correlation equation is more accurate than the previous one. Simultaneously, the energy saving potential of multi-entrance ventilation tunnels is proved by the analysis of measured data, and the effect of heat transfer gain on the main ventilation tunnel caused by the secondary ventilation tunnel is proved by the proposed correlation equation.
A Calculation Method of Convective Heat Transfer Coefficient in Ventilation Tunnels
Environ Sci Eng
Liu, Yanan (Herausgeber:in) / Ma, Jiaxing (Autor:in) / Liu, Yong (Autor:in) / Ma, Mengru (Autor:in)
International Conference on Energy and Environmental Science ; 2024 ; Chongqing, China
2024 the 8th International Conference on Energy and Environmental Science (ICEES 2024) ; Kapitel: 68 ; 1037-1051
24.08.2024
15 pages
Aufsatz/Kapitel (Buch)
Elektronische Ressource
Englisch
Ventilation tunnel , Convective heat transfer coefficient , Multi-entrance ventilation , Energy saving Environment , Pollution, general , Renewable and Green Energy , Natural Resource and Energy Economics , Monitoring/Environmental Analysis , Analytical Chemistry , Public Policy , Earth and Environmental Science
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