A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Experimental and numerical evaluation of wind-driven natural ventilation and dust suppression effects of coal sheds with porous gables
https://orcid.org/0000-0002-9368-6309
Abstract Owing to the air pollution emission restrictions, coal yards are frequently required to be sheltered by coal sheds. However, for the coal yards to be sheltered by coal sheds, the wind environment in the coal sheds must provide ventilation as well as ensure dust suppression. In this study, the wind-driven natural ventilation and dust suppression effects of coal sheds possessing porous windbreak gables are studied using wind tunnel experiment and computational fluid dynamics (CFD) numerical simulation. The wind velocities of wind-driven natural ventilation and dust coal piles and near the ventilators are obtained by the CFD simulation with re-normalization group (RNG) k-ε model, which are validated by the wind tunnel measurement results. The ventilation rate and the dust suppression rate are estimated for quantifying the ventilation and dust suppression effects of coal sheds with different gables. The results indicate that a windbreak gable or the combination of a porous windbreak and a solid plate can provide both aspects, thus satisfying both production and environmental requirements. This research provides a reference to determine the closure type and the key parameters in the architectural design of coal sheds. The presented framework can also be used for the further optimization and manipulation of the wind environment in relevant industrial buildings.
Highlights The wind-driven ventilation rate of coal sheds with windbreak gables can be enhanced from 0.7 to 2.3 times/hour. The dust suppression rate of coal sheds with windbreak gables can be enhanced from 56% to 90%. Windbreak gable can juggle the dilemma between ventilation and dust suppression.
Experimental and numerical evaluation of wind-driven natural ventilation and dust suppression effects of coal sheds with porous gables
https://orcid.org/0000-0002-9368-6309
Abstract Owing to the air pollution emission restrictions, coal yards are frequently required to be sheltered by coal sheds. However, for the coal yards to be sheltered by coal sheds, the wind environment in the coal sheds must provide ventilation as well as ensure dust suppression. In this study, the wind-driven natural ventilation and dust suppression effects of coal sheds possessing porous windbreak gables are studied using wind tunnel experiment and computational fluid dynamics (CFD) numerical simulation. The wind velocities of wind-driven natural ventilation and dust coal piles and near the ventilators are obtained by the CFD simulation with re-normalization group (RNG) k-ε model, which are validated by the wind tunnel measurement results. The ventilation rate and the dust suppression rate are estimated for quantifying the ventilation and dust suppression effects of coal sheds with different gables. The results indicate that a windbreak gable or the combination of a porous windbreak and a solid plate can provide both aspects, thus satisfying both production and environmental requirements. This research provides a reference to determine the closure type and the key parameters in the architectural design of coal sheds. The presented framework can also be used for the further optimization and manipulation of the wind environment in relevant industrial buildings.
Highlights The wind-driven ventilation rate of coal sheds with windbreak gables can be enhanced from 0.7 to 2.3 times/hour. The dust suppression rate of coal sheds with windbreak gables can be enhanced from 56% to 90%. Windbreak gable can juggle the dilemma between ventilation and dust suppression.
Experimental and numerical evaluation of wind-driven natural ventilation and dust suppression effects of coal sheds with porous gables
https://orcid.org/0000-0002-9368-6309
Abstract Owing to the air pollution emission restrictions, coal yards are frequently required to be sheltered by coal sheds. However, for the coal yards to be sheltered by coal sheds, the wind environment in the coal sheds must provide ventilation as well as ensure dust suppression. In this study, the wind-driven natural ventilation and dust suppression effects of coal sheds possessing porous windbreak gables are studied using wind tunnel experiment and computational fluid dynamics (CFD) numerical simulation. The wind velocities of wind-driven natural ventilation and dust coal piles and near the ventilators are obtained by the CFD simulation with re-normalization group (RNG) k-ε model, which are validated by the wind tunnel measurement results. The ventilation rate and the dust suppression rate are estimated for quantifying the ventilation and dust suppression effects of coal sheds with different gables. The results indicate that a windbreak gable or the combination of a porous windbreak and a solid plate can provide both aspects, thus satisfying both production and environmental requirements. This research provides a reference to determine the closure type and the key parameters in the architectural design of coal sheds. The presented framework can also be used for the further optimization and manipulation of the wind environment in relevant industrial buildings.
Highlights The wind-driven ventilation rate of coal sheds with windbreak gables can be enhanced from 0.7 to 2.3 times/hour. The dust suppression rate of coal sheds with windbreak gables can be enhanced from 56% to 90%. Windbreak gable can juggle the dilemma between ventilation and dust suppression.
Experimental and numerical evaluation of wind-driven natural ventilation and dust suppression effects of coal sheds with porous gables
Su, Ning (author) / Peng, Shitao (author) / Hong, Ningning (author) / Zhang, Jinlong (author)
Building and Environment ; 177
2020-03-18
Article (Journal)
Electronic Resource
English
Engineering Index Backfile | 1963
A Swedish Home with Concrete Gables
| Online Contents | 2014