Numerical Study on Reduction of Ambient NOx, PM, and VOCs Concentrations by ACF (Activated Carbon Fiber) Fences: Effects of Generated Air Flow and Chemical Reactivity of the ACF Fences

摘要

A method to use fences of activated carbon fiber (ACF) is presented to reduce high NO_2, PM, and VOCs concentrations in urban atmosphere without excess energy use. Polluted air in road space moves with natural and car-induced winds to contact with and to flow through ACF fences, and the ACF layer removes these pollutants. That this "energy-free" equipment can reduce high NOx by 15-50 % at the roadside is numerically evaluated.