Numerical Simulation Research on Design of Displacement Ventilation System in Large Painting Workshop

2020 ◽  
pp. 369-377
Author(s):  
Bin Yang ◽  
Jianwu Chen ◽  
Lindong Liu ◽  
Yanqiu Sun ◽  
Shulin Zhou ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Ventilation System ◽  
Displacement Ventilation ◽  
Simulation Research ◽  
Large Painting

Design and Simulation Research on Mechanical Ventilation System for Small Underground Granary

2014 ◽  
Vol 875-877 ◽  
pp. 2148-2151
Author(s):  
Hai Hong Zhang ◽  
Zhong Ying Wang ◽  
Qiang Liu ◽  
Peng Fei Ma
Keyword(s):  
Numerical Simulation ◽  
Mechanical Ventilation ◽  
Pressure Field ◽  
Ventilation System ◽  
Simulation Research ◽  
New Type ◽  
Simulation Results ◽  
Dynamic Numerical Simulation ◽  
Set Up ◽  
Better Than

The mechanical ventilation system of new type underground granary was designed and three wind pipe models with different length were investigated in this paper. Dynamic numerical simulation was applied for evaluating the cooling effect of mechanical ventilation of the granary. The simulation results, including temperature field, flow field and pressure field results, show that the cone shaped base of grain granary is better than flat shaped base. It is an optimal project that the main wind pipe opens with mesh only in the bottom. In addition, four vertical guide plates were set up around the main wind pipe, which have the function of saving energy and reducing consumption.

The Numerical Simulation of the Relation between Displacement Ventilation Efficiency and Different Outlet Position

2014 ◽  
Vol 1079-1080 ◽  
pp. 574-578
Author(s):  
Zhen Jie Hu ◽  
Xiao Fan Song
Keyword(s):  
Numerical Simulation ◽  
Temperature Field ◽  
Velocity Field ◽  
Air Temperature ◽  
Ventilation System ◽  
Displacement Ventilation ◽  
Air Velocity ◽  
Position Analysis ◽  
Ventilation Efficiency ◽  
Air Vent

Using CFD software to simulate the indoor different ventilation system of different outlet position. Analysis the characteristics of the interior velocity field and temperature field in different conditions.We obtain in the same conditions ,set air vent on the home have a bigger efficiency than the traditional way.,and supply air velocity has a remarkable influence on the ventilation efficiency compared to the supply air temperature.

NUMERICAL SIMULATION OF VENTILATION SYSTEM WITHIN AN ARMORED VEHICLE CABIN

2007 ◽  
Vol 14 (2) ◽  
pp. 201-223
Author(s):  
Chin-Lung Chang ◽  
Chang-Hsien Tai ◽  
Chien-Hsiung Tsai ◽  
Yu-Ren Wang ◽  
Qing-Shan Hon
Keyword(s):  
Numerical Simulation ◽  
Ventilation System ◽  
Vehicle Cabin ◽  
Armored Vehicle

scholarly journals Numerical Simulation Research on Multi-field Coupling of Underground Energy Pile

2021 ◽  
Vol 1838 (1) ◽  
pp. 012061
Author(s):  
Qihui Zhou ◽  
Zhanjun Huang ◽  
Yong Wu ◽  
Huipeng Zhang ◽  
Yufeng Shi ◽  
...  
Keyword(s):  
Numerical Simulation ◽  
Simulation Research ◽  
Energy Pile ◽  
Field Coupling

Fume transports in a high rise industrial welding hall with displacement ventilation system and individual ventilation units

2012 ◽  
Vol 52 ◽  
pp. 119-128 ◽  
Author(s):  
Han-Qing Wang ◽  
Chun-Hua Huang ◽  
Di Liu ◽  
Fu-Yun Zhao ◽  
Hai-Bo Sun ◽  
...  
Keyword(s):  
Ventilation System ◽  
Displacement Ventilation ◽  
High Rise

Computational Modeling of Particulate Pollutant Transport in a Ventilated Room in the Presence of Two Heated Breathing and Rotating Manikins

2017 ◽  
Author(s):  
Seyed Ali Keshavarz ◽  
Mazyar Salmanzadeh ◽  
Goodarz Ahmadi
Keyword(s):  
Air Quality ◽  
Computational Modeling ◽  
Indoor Air Quality ◽  
Indoor Air ◽  
Rotational Motion ◽  
Indoor Environment ◽  
Ventilation System ◽  
Thermal Plume ◽  
Displacement Ventilation ◽  
Simulation Results

Recently, attention has been given to indoor air quality due to its serious health concerns. Clearly the dispersion of pollutant is directly affected by the airflow patterns. The airflow in indoor environment is the results of a combination of several factors. In the present study, the effects of thermal plume and respiration on the indoor air quality in a ventilated cubicle were investigated using an unsteady computational modeling approach. The person-to-person contaminant transports in a ventilated room with mixing and displacement ventilation systems were studied. The effects of rotational motion of the heated manikins were also analyzed. Simulation results showed that in the cases which rotational motion was included, the human thermal plume and associated particle transport were significantly distorted. The distortion was more noticeable for the displacement ventilation system. Also it was found that the displacement ventilation system lowered the risk of person-to-person transmission in an office space in comparison with the mixing ventilation system. On the other hand the mixing system was shown to be more effective compared to the displacement ventilation in removing the particles and pollutant that entered the room through the inlet air diffuser.

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