| Related citation: | Lin Liu,Haoran Huang,Chenghe Wu,Liru Liu1，Jing Tian.Wind-Thermal Environmental Characteristic of Multi-Variable Passive Enhanced Natural Ventilation System for High and Large Space Building[J].Journal of Harbin Institute Of Technology(New Series),2023,30(5):34-51.DOI:10.11916/j.issn.1005-9113.2022039. |
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| Author Name | Affiliation | | Lin Liu | School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China | | Haoran Huang | School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China | | Chenghe Wu | Architectural Design and Research Institute of Guangdong Province, Guangzhou 510010, China | | Liru Liu1，Jing Tian | School of Civil and Transportation Engineering, Guangdong University of Technology, Guangzhou 510006, China |
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| Abstract: |
| Natural ventilation effects in high and large space buildings of tropical areas greatly affect the air conditioning energy consumption. Aiming at nearly zero energy building design, this paper mainly contributes to provide theoretical basis and reference for thermal comfortable air conditioning system design of high and large space buildings. Taking a theatre in Hainan as study object, a newly composite enhanced natural ventilation system is proposed by integrating the underground tunnel-based earth to air heat exchange system and the solar chimney. Ventilation quantity, air velocity and air temperature field, human vertical temperature gradient difference under 24 simulation working conditions are considered and analyzed by using ANSYS Fluent. For the underground tunnel, results show that Group Two with double underground tunnels and side air supply location shows its advantages in cooling effects and air supply uniformity. Then for the solar chimney, results show that the solar radiation intensity contributes to larger difference in transmission power and leads to different cooling effects. On the whole, the system under working condition No. 7 with 120 m long, side air supply, double underground tunnel and 20 m high, 1 m wide, 0.6° absorber plate angle solar chimney shows its priority in better comprehensive performance. |
| Key words: natural ventilation solar chimney earth to air heat exchange system energy conservation thermal environment |
| DOI：10.11916/j.issn.1005-9113.2022039 |
| Clc Number:TU82 |
| Fund: |
