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Volume 40 Issue 12
Nov.  2022
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Article Navigation >  ENVIRONMENTAL ENGINEERING  > 2022  >  40(12): 180-186
JIA Kaixue, XU Shaoqi, WEI Zimin, CHEN Wenjie, ZHAN Yabin, SHI Xiong, LI Ji, WEI Yuquan. REVIEW ON PHOSPHORUS FRACTIONS TRANSFORMATION IN COMPOSTING ENHANCED BY PHOSPHORUS-SOLUBILIZING MICROORGANISMS[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(12): 89-97. doi: 10.13205/j.hjgc.202212012
Citation: LUAN Yigang, ZHANG Limin, YIN Yue, YAN Lanyi, WU Xue, SUN Tao. VENTILATION STRUCTURE OPTIMIZATION AND VIRUS SPREADING LAW IN LARGE INDOOR PLACES[J]. ENVIRONMENTAL ENGINEERING , 2022, 40(12): 180-186. doi: 10.13205/j.hjgc.202212024
shu

VENTILATION STRUCTURE OPTIMIZATION AND VIRUS SPREADING LAW IN LARGE INDOOR PLACES

doi: 10.13205/j.hjgc.202212024

  • College of Power and Energy Engineering, Harbin Engineering University, Harbin 150001, China

  • Received Date: 2021-12-07
    Available Online: 2023-03-23
    Abstract
  • As for the limited space and complex air flow field in large indoor places, research on the spread of aerosol-borne viruses in such large enclosed spaces is of great significance for preventing spreading of infectious viruses. Taking a shelter hospital in Wuhan temporarily refitted from a stadium in the COVID-19 epidemic in 2020 as the research object, the air flow field in the shelter was analyzed by numerical simulation, and the DPM model (discrete phase particle model) was used to simulate the virus-carrying distribution and diffusion of aerosol particles in the shelter. The effects of natural ventilation, forced ventilation, air distribution in air ducts and bottom suction on particle distribution were also studied. The results of the numerical simulation showed that the aerosol diffusion was effectively suppressed, when the air distribution of the air duct was matched with the bottom suction, and when the wind pressure of the air distribution in the air duct was 50 kPa, the effect of particle removal was the best.
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