Study on the Influence and Optimization of the Venturi Effect on the Natural Ventilation of Buildings in the Xichang Area

Natural ventilation is a way to reduce the energy consumption of building operations and improve the indoor living environment comfort. The venturi cap is designed with a roof, grille and wind deflector to intensify the natural ventilation of buildings. The structural parameters of the venturi cap w...

Full description

Bibliographic Details
Main Authors:	Lili Zhang, Lei Tian, Qiong Shen, Fei Liu, Haolin Li, Zhuojun Dong, Jingyue Cheng, Haoru Liu, Jiangjun Wan
Format:	Article
Language:	English
Published:	MDPI AG 2021-08-01
Series:	Energies
Subjects:	natural ventilation venturi effect orthogonal design numerical simulation variance analysis
Online Access:	https://www.mdpi.com/1996-1073/14/16/5053

id	doaj-8947d8b46e6e43f988d3cd1384c0668a
record_format	Article
spelling	doaj-8947d8b46e6e43f988d3cd1384c0668a2021-08-26T13:43:16ZengMDPI AGEnergies1996-10732021-08-01145053505310.3390/en14165053Study on the Influence and Optimization of the Venturi Effect on the Natural Ventilation of Buildings in the Xichang AreaLili Zhang0Lei Tian1Qiong Shen2Fei Liu3Haolin Li4Zhuojun Dong5Jingyue Cheng6Haoru Liu7Jiangjun Wan8College of Architectural and Urban-Rural Planning, Dujiangyan Campus, Sichuan Agricultural University, Ya’an 611830, ChinaCollege of Architectural and Urban-Rural Planning, Dujiangyan Campus, Sichuan Agricultural University, Ya’an 611830, ChinaCollege of Architectural and Urban-Rural Planning, Dujiangyan Campus, Sichuan Agricultural University, Ya’an 611830, ChinaCollege of Architectural and Urban-Rural Planning, Dujiangyan Campus, Sichuan Agricultural University, Ya’an 611830, ChinaCollege of Architectural and Urban-Rural Planning, Dujiangyan Campus, Sichuan Agricultural University, Ya’an 611830, ChinaCollege of Architectural and Urban-Rural Planning, Dujiangyan Campus, Sichuan Agricultural University, Ya’an 611830, ChinaCollege of Architectural and Urban-Rural Planning, Dujiangyan Campus, Sichuan Agricultural University, Ya’an 611830, ChinaCollege of Architectural and Urban-Rural Planning, Dujiangyan Campus, Sichuan Agricultural University, Ya’an 611830, ChinaCollege of Architectural and Urban-Rural Planning, Dujiangyan Campus, Sichuan Agricultural University, Ya’an 611830, ChinaNatural ventilation is a way to reduce the energy consumption of building operations and improve the indoor living environment comfort. The venturi cap is designed with a roof, grille and wind deflector to intensify the natural ventilation of buildings. The structural parameters of the venturi cap were designed using an orthogonal design. Fluid analysis software was used for numerical simulation, and variance analysis was used to study the importance of seven influence factors: the width of the roof opening, the roof slope, the height of the wind deflector, the horizontal width of the wind deflector, the angle of the wind deflector, the angle of the grille, and the spacing of the grille slices. The results show that the most significant influencing factor is the width of the roof opening, while significant influence factors include the angle of the grille and the horizontal width of the wind deflector. Additionally, the optimum parameter combination for ventilation performance at the research level was put forward, with the proposed combination achieving a volume flow rate of 5.507 m<sup>3</sup>/s. The average temperature of the horizontal plane at a height of 1.2 m above the ground was 3.002 K lower than that without a venturi cap, which provides a reference for the optimization of indoor ventilation design in buildings in the Xichang area.https://www.mdpi.com/1996-1073/14/16/5053natural ventilationventuri effectorthogonal designnumerical simulationvariance analysis
collection	DOAJ
language	English
format	Article
sources	DOAJ
author	Lili Zhang Lei Tian Qiong Shen Fei Liu Haolin Li Zhuojun Dong Jingyue Cheng Haoru Liu Jiangjun Wan
spellingShingle	Lili Zhang Lei Tian Qiong Shen Fei Liu Haolin Li Zhuojun Dong Jingyue Cheng Haoru Liu Jiangjun Wan Study on the Influence and Optimization of the Venturi Effect on the Natural Ventilation of Buildings in the Xichang Area Energies natural ventilation venturi effect orthogonal design numerical simulation variance analysis
author_facet	Lili Zhang Lei Tian Qiong Shen Fei Liu Haolin Li Zhuojun Dong Jingyue Cheng Haoru Liu Jiangjun Wan
author_sort	Lili Zhang
title	Study on the Influence and Optimization of the Venturi Effect on the Natural Ventilation of Buildings in the Xichang Area
title_short	Study on the Influence and Optimization of the Venturi Effect on the Natural Ventilation of Buildings in the Xichang Area
title_full	Study on the Influence and Optimization of the Venturi Effect on the Natural Ventilation of Buildings in the Xichang Area
title_fullStr	Study on the Influence and Optimization of the Venturi Effect on the Natural Ventilation of Buildings in the Xichang Area
title_full_unstemmed	Study on the Influence and Optimization of the Venturi Effect on the Natural Ventilation of Buildings in the Xichang Area
title_sort	study on the influence and optimization of the venturi effect on the natural ventilation of buildings in the xichang area
publisher	MDPI AG
series	Energies
issn	1996-1073
publishDate	2021-08-01
description	Natural ventilation is a way to reduce the energy consumption of building operations and improve the indoor living environment comfort. The venturi cap is designed with a roof, grille and wind deflector to intensify the natural ventilation of buildings. The structural parameters of the venturi cap were designed using an orthogonal design. Fluid analysis software was used for numerical simulation, and variance analysis was used to study the importance of seven influence factors: the width of the roof opening, the roof slope, the height of the wind deflector, the horizontal width of the wind deflector, the angle of the wind deflector, the angle of the grille, and the spacing of the grille slices. The results show that the most significant influencing factor is the width of the roof opening, while significant influence factors include the angle of the grille and the horizontal width of the wind deflector. Additionally, the optimum parameter combination for ventilation performance at the research level was put forward, with the proposed combination achieving a volume flow rate of 5.507 m<sup>3</sup>/s. The average temperature of the horizontal plane at a height of 1.2 m above the ground was 3.002 K lower than that without a venturi cap, which provides a reference for the optimization of indoor ventilation design in buildings in the Xichang area.
topic	natural ventilation venturi effect orthogonal design numerical simulation variance analysis
url	https://www.mdpi.com/1996-1073/14/16/5053
work_keys_str_mv	AT lilizhang studyontheinfluenceandoptimizationoftheventurieffectonthenaturalventilationofbuildingsinthexichangarea AT leitian studyontheinfluenceandoptimizationoftheventurieffectonthenaturalventilationofbuildingsinthexichangarea AT qiongshen studyontheinfluenceandoptimizationoftheventurieffectonthenaturalventilationofbuildingsinthexichangarea AT feiliu studyontheinfluenceandoptimizationoftheventurieffectonthenaturalventilationofbuildingsinthexichangarea AT haolinli studyontheinfluenceandoptimizationoftheventurieffectonthenaturalventilationofbuildingsinthexichangarea AT zhuojundong studyontheinfluenceandoptimizationoftheventurieffectonthenaturalventilationofbuildingsinthexichangarea AT jingyuecheng studyontheinfluenceandoptimizationoftheventurieffectonthenaturalventilationofbuildingsinthexichangarea AT haoruliu studyontheinfluenceandoptimizationoftheventurieffectonthenaturalventilationofbuildingsinthexichangarea AT jiangjunwan studyontheinfluenceandoptimizationoftheventurieffectonthenaturalventilationofbuildingsinthexichangarea
_version_	1721193717066366976

Study on the Influence and Optimization of the Venturi Effect on the Natural Ventilation of Buildings in the Xichang Area

Similar Items