Experimental Study on Particle Distribution under Stratified Air-conditioning in Large Space Building

  • Fei Wang
  • Zhenhai LiEmail author
  • Xin Wang
  • Qidong Li
  • Chen Huang
Conference paper
Part of the Environmental Science and Engineering book series (ESE)


Particle concentration distribution rule in large space building under HVAC system is very important, because that is related to particle removal solution design. This paper mapped particle concentration distribution in a large space factory under stratified air condition system. The results shows that: large particle concentration shows significant variation along vertical direction, with a max difference of 8 times; the highest particle concentration appears at the height of 1.5 m of all particle sizes; relatively low particle concentration appears between 3 and 6 m; and, a relatively high value appears between 7 and 9 m, which seems to tell there is a stagnation zone of large particles at this height. Nozzle side supply air shows better particle spatial remove efficiency than columnar down supply air.


Large space Vertical particle distribution Stratified air-condition system 


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© Springer Nature Singapore Pte Ltd. 2020

Authors and Affiliations

  1. 1.School of Mechanical EngineeringTongji UniversityShanghaiChina
  2. 2.School of Environment and ArchitectureUniversity of Shanghai for Science and TechnologyShanghaiChina

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