AI Chat Paper
Discover the SciOpen Platform and Achieve Your Research Goals with Ease.
Search articles, authors, keywords, DOl and etc.
{{expandStatus?'Exit ':''}}Advanced Search
In this study, full-scale fire experiments and numerical simulations of the underground powerhouse of a hydropower station during the construction stage were performed to investigate the temperature distribution and smoke propagation. The characteristic of inverse ambient temperature in the vertical direction was discovered, resulting in the vertical movement of smoke differing from that in a uniform temperature environment. The maximum temperature increase appeared at non-highest points. Smoke characteristic parameters such as smoke settlement height and temperature increase were discussed at different heat release rates (HRRs) of fire sources to determine the fire risk distribution of the powerhouse. Two ventilation modes were proposed, and their smoke control effects were compared. The optimal ventilation mode and volume in different fire scenarios were proposed. The findings offer scenario and data support for fire smoke control and emergency plan design in powerhouses of hydropower stations.
Z. K. Feng, W. J. Niu, C. T Cheng. China’s large-scale hydropower system: Operation characteristics, modeling challenge and dimensionality reduction possibilities. Renew Energy, 2019, 136: 805–818.
X. Z. Li, Z. J. Chen, X. C. Fan, et al. Hydropower development situation and prospects in China. Renew Sust Energy Rev, 2018, 82: 232–239.
A. G. Li, Y. Q. Wu, J. Y. Ma, et al. Experimental studies of mechanically exhausted smoke within the transport passage of the main transformer of an underground hydropower station. Tunn Undergr Space Technol, 2013, 33: 111–118.
A. G. Li, Y. Zhang, J. Hu, et al. Reduced-scale experimental study of the temperature field and smoke development of the bus bar corridor fire in the underground hydraulic machinery plant. Tunn Undergr Space Technol, 2014, 41: 95–103.
A. G. Li, Z. J. Liu, J. F. Zhang, et al. Reduced-scale model study of ventilation for large space of generatrix floor in HOHHOT underground hydropower station. Energy Buildings, 2011, 43: 1003–1010.
Y. Zhang, A. G. Li, J. Hu, et al. Prediction of carbon monoxide concentration and optimization of the smoke exhaust system in a busbar corridor. Build Simul, 2014, 7: 639–648.
M. H. Zhong, C. L. Shi, L. He, et al. Smoke development in full-scale sloped long and large curved tunnel fires under natural ventilation. Appl Therm Eng, 2016, 108: 857–865.
C. Liu, M. H. Zhong, P. Lin, et al. Full-scale experimental study of a bifurcated tunnel fire in a hydropower engineering project. J Tsinghua Univ (Sci Technol), 2022, 62: 1–12. (in Chinese)
H. H. Cheng, C. Liu, J. F. Chen, et al. Full-scale experimental study on fire under natural ventilation in the T-shaped and curved tunnel groups. Tunn Undergr Space Technol, 2022, 123: 104442.
C. Liu, X. L. Tian, M. H. Zhong, et al. Full-scale experimental study on fire-induced smoke propagation in large underground plant of hydropower station. Tunn Undergr Space Technol, 2020, 103: 103447.
L. Huang, J. Y. Ma, A. G. Li, et al. Scale modeling experiments of fire-induced smoke and extraction via mechanical ventilation in an underground hydropower plant. Sustain Cities Soc, 2019, 44: 536–549.
Y. C. Liu, S. C. Wang, Y. B. Deng, et al. Numerical simulation and experimental study on ventilation system for powerhouses of deep underground hydropower stations. Appl Therm Eng, 2016, 105: 151–158.
Y. Tong, D. K. Huo, P. G. Zhu, et al. Prediction of natural and hybrid ventilation performance used for fire-induced smoke control in a large single space. Fire Saf J, 2018, 100: 20–31.
Z. L. Wang, L. Zhu, X. X. Guo, et al. Reduced-scale experimental and numerical study of fire in a hybrid ventilation system in a large underground subway depot with superstructures under fire scenario. Tunn Undergr Space Technol, 2019, 88: 98–112.
A. Dastan, M. Rahiminejad, M. Sabz, et al. CFD simulations of a semi-transverse ventilation system in a long tunnel. Undergr Space, 2023, 11: 153–170.
Y. H. Guo, Z. Y. Yuan, Y. P. Yuan, et al. Numerical simulation of smoke stratification in tunnel fires under longitudinal velocities. Undergr Space, 2021, 6: 163–172.
S. Shao, X. G. Yang, J. W. Zhou, et al. Numerical analysis of different ventilation schemes during the construction process of inclined tunnel groups at the Changheba Hydropower Station, China. Tunn Undergr Space Technol, 2016, 59: 157–169.
X. L. Tian, M. H. Zhong, C. L. Shi, et al. Full-scale tunnel fire experimental study of fire-induced smoke temperature profiles with methanol–gasoline blends. Appl Therm Eng, 2017, 116: 233–243.
M. H. Zhong, C. Liu, X. L. Tian, et al. Full-scale experimental study on fire in one-platform-interchange elevated metro station-(2) station hall fire. J Safety Sci Technol, 2018, 14: 5–12. (in Chinese)
Z. Long, M. H. Zhong, J. F. Chen, et al. Study on emergency ventilation strategies for various fire scenarios in a double-island subway station. J Wind Eng Ind Aerod, 2023, 235: 105364.
The articles published in this open access journal are distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
京公网安备11010802044758号