B147

Computational solutions of aerosol generation rates for discharging water appliances

Brief:

Aerosoliszation of water from discharging water appliances is a source for Legionellosis. This study investigates the aerosol generation rates of a discharging water appliance in a mechanically ventilated test chamber (size 1.53×0.84×0.835 m; with a water sink of size

0.4×0.33×0.17 m) using computational fluid dynamics (CFD). Aerosol volume fractions and concentrations in the chamber were computed to evaluate the aerosol counts in the air. The results showed that the simulated aerosol concentration in the immediate proximity of the central point in the chamber did not show significant difference from the experimental measurement values reported in the open literature. This paper hence demonstrates that CFD can be a useful aid in evaluating the aerosol generation rates of discharging water appliances.

Further information:

Zhou Y, Wong LT, Mui KW, 2016. Computational solutions of aerosol generation rates for discharging water appliances, The 42nd CIBW062 International Symposium of Water Supply and Drainage for Buildings, 29 August-1 September, Kosice, Slovakia.