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.

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By longwell / December 13, 2025 / Technical Articles

High Efficiency Plug Fans for HVAC & Air Handling Units: The Ultimate Guide

High Efficiency Plug Fans for HVAC & Air Handling Units: The Ultim...

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Real-World-Efficiency--4-Critical-Appli
By longwell / December 6, 2025 / Technical Articles

Real-World Efficiency: 4 Critical Applications of Tangential Blowers in Modern HVAC & Heating Systems

Real-World Efficiency: 4 Critical Applications of Tangential Blowers i...

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By longwell / November 20, 2025 / Technical Articles

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...

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Navigating-New-EU-Regulations--How-LONG
By longwell / November 19, 2025 / Technical Articles

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...

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By longwell / November 11, 2025 / Technical Articles

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

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

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By longwell / November 7, 2025 / Events & Exhibitions

LONGWELL’s High-Efficiency EC/DC Cross-Flow Fans and Energy-Saving Solutions Lead HVAC Innovation

LONGWELL’s High-Efficiency EC/DC Cross-Flow Fans and Energy-Saving Sol...

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Saying-Goodbye-to-High-Energy-Consumpti
By longwell / November 6, 2025 / Technical Articles

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...

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LONGWELL Centrifugal Fan Series High-Performance, High-Efficiency Airflow Solution Technical Brief
By longwell / October 29, 2025 / Technical Articles

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

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

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DC Backward Centrifugal Fans- Core Questions Answered for HVAC Professionals
By longwell / October 28, 2025 / Technical Articles

DC Backward Centrifugal Fans: Core Questions Answered for HVAC Professionals

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

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