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

LONGWELL Introduces a Revolutionary EC Fan Design

Ningbo Longwell Electric Technology Co., Ltd., a prominent player in the EC fan manufacturing sector, has recently launched an innovative biomimetic EC fan platform. This new offering marks a significant advancement in energy efficiency and noise reduction, taking inspiration from nature's aerodynamic principles. The groundbreaking impeller design boasts an impressive static efficiency of 73-82%, which stands out in the competitive market of HVAC solutions.

Nature-Inspired Engineering

The heart of the LWBE3G fan platform is its backward-curved EC impeller, a design that facilitates a remarkable 5-8 percentage points improvement in static efficiency compared to traditional fan designs. This enhancement not only promises to reduce energy consumption by approximately 8-12% at similar airflow rates but also delivers a quieter performance, operating at just 4-6 dB(A) less noise than conventional models. Additionally, the LWBE3G fans are designed to minimize high-frequency noise content, slashing it by more than 50% and extending the stall margin by an impressive 25-30%. These advanced features have been confirmed through rigorous in-house Computational Fluid Dynamics (CFD) analysis.

Comprehensive Control and Protection

Incorporated within the fan's design are numerous control capabilities, offering protocols such as 0-10V, PWM, Modbus RTU, and BACnet MS/TP. Furthermore, the fans come equipped with twelve protective features that enhance their longevity and reliability. The fans have an L10 bearing life expectancy of 60,000 hours at a temperature of 40°C, ensuring they can withstand rigorous operational demands.

Certifications and Compliance

LONGWELL's commitment to quality and safety is evident in the certifications secured for the LWBE3G platform. This platform has attained CE, UL 507, cUL, and ETL certifications, in addition to compliance with RoHS/REACH directives and international standards like ISO 9001, 14001, and 45001. Performance testing adheres to AMCA 210 / ISO 5801 standards, with CRP registration currently in progress.

Proven Efficiency in Action

The efficacy of the new EC fan design has already been demonstrated in a European AHU retrofit project conducted in 2024. During this project, the LWBE3G450-188PT-09 model saved roughly 30% energy at an airflow rate of 8,660 m³/h and a pressure of over 2,000 Pa. Similarly, the LWBE3G560-188PT-01 achieved an airflow of 16,039 m³/h, effectively replacing the ebm-papst R3G560 with no need for modifications to the air chamber. With lead times for samples at 1-3 days and production at 15-30 days, LONGWELL provides a stark contrast to the typical 14-22 weeks lead time associated with imported premium EC fans.

Engineering Decision Made Easy

Bruce Li, the Chief Executive Officer of LONGWELL, emphasized the competitive edge of the new impeller design, stating, "We are competing on impeller physics, not just price. When the aerodynamics are this efficient and this quiet, switching becomes an easy engineering decision." This sentiment captures the essence of LONGWELL’s focus: delivering high-performance solutions without the high costs associated with premium alternatives.

About LONGWELL

Founded in 1990, LONGWELL has its roots in Yuyao, Ningbo, China's thriving manufacturing sector. The company specializes in designing and producing both EC and AC fans and motors, with its solutions widely exported across over 30 countries. To discover more about LONGWELL’s innovative offerings, please visit their official site at longwellfans.com.

In summary, LONGWELL's new biomimetic EC fan not only redefines efficiency and noise levels but also represents a significant step forward in sustainable HVAC solutions, making it a compelling choice for engineers and equipment manufacturers alike. Performance figures are reflective of specific testing conditions; thus, final selections should consider factors like duty point, voltage/control, mounting, and project validation.