Research method: Aiming at compose of subway ventilation and air-conditioning system and device, it analyses the main subway noise source and denoise noise elimination equipment choice in site measurement data.
Research results: Subway ventilation and air-conditioner is one of main noise source. Noise elimination denoise equipment responds to the request satisfying acoustics，aerodynamics，processing aspect
Research conclusions: The ventilation and air-conditioning system asks a subway to adopt rational denoise of science noise elimination measure. Dyadic impedance movie deadener can carry out effective controlling on noise and eliminates.
2007, Vol. 24 
