1. Centrifugal Fan Performance

Centrifugal fans are essentially variable flow constant pressure devices. When the speed is constant, the theoretical pressure-flow curve of a centrifugal fan should be a straight line. Due to internal losses, the actual characteristic curve is curved. The pressure generated in a centrifugal fan is significantly affected by changes in inlet temperature or density. For a given airflow, for a given pressure and flow characteristic curve, there is a corresponding power and flow characteristic curve. When the blower operates at a constant speed, for a given flow rate, the required power increases as the inlet temperature decreases.

2. Development of Centrifugal Fans

As China's industrialization advances, the industrial sector is vigorously promoting energy conservation and consumption reduction, as well as industrial upgrading and integration. There is a need for a large-scale update of industrial infrastructure equipment. Centrifugal fans, as an important supporting equipment for industry, will be more widely applied in power, cement, petrochemicals, coal, mining, and environmental protection sectors. Under the new economic development situation, the centrifugal fan industry will continue to experience rapid growth. The market size of the centrifugal fan industry in the future will reach an unprecedented scale.

Centrifugal fans utilize the property of high-speed rotating blades to accelerate gases, then decelerate and alter their flow direction, converting kinetic energy into potential energy. This characteristic has led to their widespread application in industrial sectors, propelling their development and further advancing the market for centrifugal fans.