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Control of Airborne Particle Concentration and Draught Risk in an Operating Room
Author(s) -
Chen Qingyan,
Jiang Zheng,
Moser Alfred
Publication year - 1992
Publication title -
indoor air
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.387
H-Index - 99
eISSN - 1600-0668
pISSN - 0905-6947
DOI - 10.1111/j.1600-0668.1992.04-23.x
Subject(s) - inlet , environmental science , particle (ecology) , turbulence , air velocity , airflow , ventilation (architecture) , inflow , meteorology , parametric statistics , air quality index , mechanics , volumetric flow rate , environmental engineering , engineering , physics , mechanical engineering , geology , oceanography , statistics , mathematics
The influence of location of airborne particle source, ventilation rate, air inlet size, supply air velocity, air outlet location, and heat source on the dkributiuns of airborne particle concentration and draught risk in an operating room is investigated. The investigation is carried out by using a flow program with the k‐E mdel of turbulence. Based on a standard case, five cases, each with one changed parameter, are computed, and the detailed field distributions of air velocity, temperature, airborne particle concentration, and draught risk are presented. The parametric study concludes that, for a better air quality and thermal comfort, it is desirable to use a higher inflow rate, a larger inlet area, and a uniform velocity profile of supply air. Outlet location and heat source have little influence on the disrributions of the particle concentration in the room. It has also been found that the distributions of particle concentration in the recirculating zone are very sensitive to the location of the particle sources.