Jun 2, 2024 · Fan curves and fan efficiency are crucial metrics in selecting appropriate fans, sizing motors, and optimizing energy consumption. Fan curves help to predict how a fan will perform under …

Dec 2, 2025 · The fan curve shows what a fan can deliver at various pressures, while the system curve shows what the ductwork requires. Where these curves intersect determines actual operating …

Oct 16, 2025 · Master the three fan laws in HVAC systems to understand relationships between fan speed, airflow, pressure, and power. Learn how to read fan curves for proper equipment selection …

Dec 6, 2024 · Learn the key components and how to interpret a fan performance curve to select the optimal fan for your application.

May 17, 2021 · Manufacturers test their equipment under a variety of conditions and plot fan performance on a “Fan Curve Chart.” This is useful for predicting how the performance changes as …

One of the most valuable pieces of information supplied by fan manufacturers is the fan performance curve. Curves are normally supplied for each specific fan on a given project.

This guide will cover the complete process of fan sizing in HVAC applications — from airflow (CFM) and total static pressure (TSP) to fan curves and operating points — using ASHRAE-backed methods …

Get the basics of fan engineering – Learn to read fan curve graphs, understand fan laws, and recognise the various elements that can affect fan performance.

A fan performance curve is a visual representation of the performance of a specific fan. At a fixed RPM, the curve will tell you how much airflow to expect at a given static pressure.

The most commonly used fan characteristic is the relationship between pressure rise and volume flow rate for a constant impeller speed (RPM). Similarly the relationship between pressure loss and …