Performance Advantages of Cabinet-Type Fire Centrifugal Fans

Performance Advantages of Cabinet-Type Fire Centrifugal FansCabinet-type fire centrifugal fans are essentially variable-flow, constant-pressure devices. At a given speed, the theoretical pressure-flow curve of a cabinet-type fire centrifugal fan must be linear. Due to internal losses within the fan, the actual characteristic curve exhibits curvature. The pressure generated by cabinet-type fire centrifugal fans is significantly affected by changes in intake air temperature and density.For a specific intake volume, the resulting pressure is lower than the ambient temperature (as air density decreases). For a given pressure and flow characteristic curve, there exists a corresponding power and flow characteristic curve. When operating at a fixed speed, the power requirement increases as the intake temperature decreases relative to the specified flow rate.