Fan Efficiency

Fan efficiency should be judged wire-to-air — from electrical input to useful air power — not from motor nameplate alone. Articles cover FEI metrics, part-load behaviour, annual energy calculation and the design factors separating premium EC platforms from commodity fans.

Why-Facilities-Are-Switching-to-FEl-1-0
By longwell / November 20, 2025 / News

Why Facilities Are Switching to FEl 1.0 Certified Axial Flow Fans in 2025

Why Facilities Are Switching to FEI 1.0 Certified Axial Flow Fans in 2...

Read More »
Navigating-New-EU-Regulations--How-LONG
By longwell / November 19, 2025 / News

Navigating New EU Regulations: How LONGWELL EC Fans Are the Optimal Solution for ErP 2024/1834 Compliance

Navigating New EU Regulations: How LONGWELL EC Fans Are the Optimal So...

Read More »
-strong--A-Pragmatic-Choice--LONGWELL-E
By longwell / November 11, 2025 / News

[A Pragmatic Choice] LONGWELL EC Duct Fans: High-Efficiency, Low-Energy HVAC Solutions

[A Pragmatic Choice] LONGWELL EC Duct Fans: High-Efficiency, Low-Energ...

Read More »
Saying-Goodbye-to-High-Energy-Consumpti
By longwell / November 6, 2025 / News

Saying Goodbye to High Energy Consumption: LONGWELL EC Energy-Saving Fans Help Data Centers Achieve 20-30% PUE Optimization?

👋 Saying Goodbye to High Energy Consumption: LONGWELL EC Energy-Saving...

Read More »
LONGWELL Centrifugal Fan Series High-Performance, High-Efficiency Airflow Solution Technical Brief
By longwell / October 29, 2025 / News

LONGWELL Centrifugal Fan Series: High-Performance, High-Efficiency Airflow Solution Technical Brief

1. Overview and Core Operating Principle Definition and Superior Perfo...

Read More »
DC Backward Centrifugal Fans- Core Questions Answered for HVAC Professionals
By longwell / October 28, 2025 / News

DC Backward Centrifugal Fans: Core Questions Answered for HVAC Professionals

In modern ventilation, HVAC, and air purification systems, fans are a ...

Read More »
By longwell / October 24, 2025 / News

2025 Türkiye Exhibition Day 2 In-depth Focus: Explore How Longwell Fan Technology Shapes The Future of Industry

LONGWELL at ISK-SODEX 2025 | Day 2 Highlights LONGWELL Pioneers Silenc...

Read More »
The-Fan-Revolution--Unlocking-the-Core-
By longwell / August 28, 2025 / News

The Fan Revolution: Unlocking the Core Technology and Aerodynamic Principles of High-Efficiency Centrifugal Fans

The Fan Revolution: Unlocking the Core Technology and Aerodynamic Prin...

Read More »
The Green Future of Aviation- How Longwell HVAC Solutions are Redefining Sustainable Airports in Southeast Asia
By longwell / August 12, 2025 / News

The Green Future of Aviation: How Longwell HVAC Solutions are Redefining Sustainable Airports

I. The Crisis: An International Hub Airport’s Energy & Comfort Dil...

Read More »