Systemic solutions
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Automobile Industry
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Low Noise Solution For Intake And Exhaust Systems
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Interior Product Performance Optimization And Cost Reduction Solutions
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Low Noise Solution For Hydrogen Fuel Cell System
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Low Noise Solution For Vehicle Electric Drive System
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Low Noise Solution For Vehicle Air Conditioning System
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Vehicle Damping Layout Optimization And Lightweight Solutions
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Aviation Industry
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Material Industry
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Other Industry
Low noise solution for hydrogen fuel cell system
1. Source of noise
· Main noise source 1: Air supply system (oxygen supply and hydrogen supply system) and tail exhaust noise;
· Main noise source 2: Thermal management system (cooling fan) noise.
2. Working principle of gas circuit (noise source 1) and noise control:
2.1 Working principle of the air circuit (noise source 1):
· Intake noise: radiated noise from the air compressor intake and post-pressure piping system;
· Exhaust noise: tail exhaust noise;
· Air compressor noise: radiated noise from the casing.
2.2 Noise control in the air path (noise source 1):
· Intake noise control: install silencers on the intake pipeline and post-pressure pipeline;
· Exhaust noise control: install pipeline silencers on the tail exhaust system;
· Air compressor noise control : Do local sound insulation treatment according to heat dissipation requirements.
2.3 BOACH acoustic gas circuit noise systematic solution:
· Design and develop new mufflers to provide low-noise products for the gas circuit system;
· Provide low-pressure loss pipeline system design and layout solutions for the system;
· Provide low-noise based on noise reduction requirements Silencer and water-vapor separator.
2.4 BOACH acoustic air circuit low-noise products:
· The following are shelf products;
· BOACH acoustics provides customized product development services.
3. Working principle of cooling fan (noise source 1) and noise control:
3.1 Working principle of the cooling fan (noise source 1):
· Blade pulsation noise: the airflow pulsation is formed on the surface of the blade under the action of the airflow, resulting in a dipole sound source;
· Doppler effect: the sound source is introduced as the blade rotates. Doppler effect.
3.2 Cooling fan (noise source 1) treatment:
· Design and optimize the air duct to reduce incoming flow pulsation;
· Introduce a silencer device into the air duct to reduce noise radiation.
3.3 BOACH acoustic fan noise reduction case:
· Provide CAE professional technical services and aerodynamic noise optimization;
· Provide low-noise air duct design, development and supply.
Wind turbine blades optimized for noise reduction
Air ducts designed for noise reduction
4. Summary of low-noise solution for hydrogen fuel cell system:
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Room 901, Building 1, Phase 2, Yungu Phase 2, Fengxi New Town, Xixian New District, Xixian New District, Xi'an City, Shaanxi Province
Room 307, Building 1, Harbin Institute of Technology Robot Industrial Park, No. 488 Qianjin East Road, Economic Development Zone, Kunshan City, Jiangsu Province
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