#China #Ningbo #Biomimetic Design #LONGWELL #EC Fan

LONGWELL’s Advanced EC Fan Technology

Ningbo Longwell Electric Technology Co., Ltd., a prominent manufacturer of EC fans, has unveiled its latest innovation in fan technology: a biomimetic EC fan platform that merges energy efficiency with silence. This groundbreaking platform is designed to cater to HVAC original equipment manufacturers (OEMs), air handling unit (AHU) builders, and data center cooling specialists seeking a superior alternative to conventional high-end European EC fans.

Key Features and Benefits

LONGWELL's new fan design incorporates a reverse-curvature EC impeller that enhances static efficiency by 5 to 8 percentage points over traditional models. This translates to a remarkable static efficiency of 73% to 82% and an energy savings of 8% to 12% while maintaining the same airflow rates. In terms of acoustics, users will appreciate that this fan operates 4 to 6 dB(A) quieter than typical fans, significantly reducing high-frequency noise by over 50%. Furthermore, the fan offers a broader stability margin of around 25% to 30%, promising reliable performance.

Each design undergoes rigorous validation through Computational Fluid Dynamics (CFD) analysis performed in-house, ensuring optimal aerodynamic performance.

Integration and Control

The EC drives are equipped with control protocols such as 0-10 V, PWM, Modbus RTU, and BACnet MS/TP, enabling seamless integration into various systems. They come with a suite of protection features, ensuring longevity with an L10 bearing life of 60,000 hours at 40°C ambient temperatures.

The new fan meets several vital certifications, including CE, UL 507, cUL, and ETL, compliant with RoHS/REACH, ISO 9001/14001/45001, and EN 50155 regulations. Aerodynamic performance is tested following AMCA 210/ISO 5801 standards, solidifying its reliability and efficiency.

Proven Performance in Real World Applications

Field tests of the LWBE3G model in a European project aimed at modernizing air handling units have showcased significant results. One specific model, LWBE3G450-188PT-09, yielded an impressive 30% energy savings at an airflow rate of 8,660 m³/h and more than 2,000 Pa. Another variant, LWBE3G560-188PT-01, matched the performance of a high-end competitor, providing 16,039 m³/h of airflow as a direct retrofit option with no modifications required in the air chamber.

Moreover, LONGWELL's production timelines for samples range from 1 to 3 days, and for full production, it is 15 to 30 days — a stark contrast to the 14 to 22 weeks typically seen with imported premium EC fans.

Market Position and Vision

Bruce Li, CEO of LONGWELL, emphasizes the company's commitment: "We compete on impeller physics, not just on pricing. When the aerodynamics are this efficient and quiet, the decision to switch suppliers becomes an easy engineering choice."

Founded in 1990 and headquartered in Yuyao, Ningbo, LONGWELL’s dedication to designing and manufacturing EC and AC fans has solidified its status as a leader in air movement solutions, exporting to over 30 countries.

As environmental concerns and energy efficiency become more critical in HVAC systems, LONGWELL positions itself at the forefront of innovation, ensuring clients will benefit from the latest advancements in fan technology.