News

Air Finned Tubular Heater Sound Level & Acoustic Noise Control

Air Finned Tubular Heater Sound Level & Acoustic Noise Control

Air finned tubular heater noise sources: airflow turbulence across fins, duct vortex shedding, fan vibration transmitted to heater frame and thermal expansion click noise. Air finned tubular heater fin wake vortex shedding generates tonal noise; fin pitch adjustment can shift frequency away from building resonance band. Air finned tubular heater A-weighted sound level increases by 4.2 dB(A) when airflow velocity rises from 2.5m/s to 3.5m/s. Air finned tubular heater acoustic test: measure 1m away from heater bank under rated airflow, background noise subtracted from measurement result. Chuanli Cold Storage Electric Defrosting Tubes optimizes fin edge profile and mounting vibration isolators to reduce defrost heater system noise inside evaporator room. Air finned tubular heater thermal expansion click noise occurs during initial heating; preheating with low power reduces thermal expansion impulse noise. Air finned tubular heater acoustic insulation: lined duct with 25mm mineral wool acoustic absorber reduces radiated noise by 8 dB(A). Air finned tubular heater resonance noise occurs when vortex shedding frequency matches natural frequency of heater frame; CFD + modal analysis used to avoid this. Air finned tubular heater noise acceptance criterion for cold storage machine room: ≤75 dB(A) at 1m distance under rated operating condition. Air finned tubular heater noise control optimizes airflow velocity, fin geometry, anti-vibration mounting and acoustic lining to meet site noise specification.

Popular search keywords embedded: air finned tubular heater acoustic noise source, air finned tubular heater fin vortex shedding tonal noise, air finned tubular heater airflow velocity sound level relation, air finned tubular heater acoustic test method 1 meter measurement, air finned tubular heater thermal expansion click noise, air finned tubular heater mineral wool duct acoustic lining noise reduction, air finned tubular heater modal analysis resonance noise avoidance, air finned tubular heater cold storage machine room noise limit, air finned tubular heater fin edge noise optimization, air finned tubular heater A weighted sound level test.

FAQs Q: What noise increase when airflow speed rises from 2.5m/s to 3.5m/s? A: +4.2 dB(A). Q: What is cold storage machine room noise acceptance limit at 1m? A: ≤75 dB(A). Q: What is the function of mineral wool acoustic duct lining? A: Reduce radiated noise by 8 dB(A). Q: What causes vortex shedding tonal noise? A: Airflow passing across fin edges. Q: How to mitigate thermal expansion click noise? A: Low power preheating to reduce thermal impulse. Q: How to avoid frame resonance noise? A: Combine CFD airflow simulation with modal analysis. Q: Where is the standard acoustic measurement point? A: 1 meter away from heater bank under rated airflow.

url: https://ms.xtldcool.com/article_1/342.html

Obtain product customization plans online

Please fill in the requirements in the box below, and you will be able to obtain it for free.

Consulting Hotline

+86-18157593311

Xiteliduo & Chuanli

China Source Factory of R32 Semi-Hermetic Piston Compressor & Custom Turnkey Industrial Refrigeration System. Self-developed compressor + complete refrigeration solution, stable performance for tropical & ultra-low temperature working conditions.

connect us

Technical Services: +86-575-83665888;83068555 
Compressor Hotline: +86-18157593311 
Electric Heating Tube Hotline: +86-13857577938 
Email: helenxiteliduo@163.com 
Electric Heating Tube Factory: No. 150, Donghu Village, Ganlin Town, Shengzhou City, Shaoxing City 
Compressor Factory: No. 679, Dongguo Economic Development Zone, Shengzhou City, Shaoxing City

Copyright © 2026 Zhejiang Xitelidu Environmental Technology Co., Ltd. & Shengchuanli Environmental Technology Co., Ltd. All Rights Reserved.