What is a Vane damper?
Inlet vane dampers are a type of damper that can restrict the flow of air in pumping, blowing, and mixing operations. They can be custom engineered to suit various needs and purposes, so they can take a variety of shapes and sizes, but they are typically round and look like fans.
What are control vanes?
Inlet Vane Control (IVC) is used to modulate fan performance. from a wide open position to some other reduced operating point. Unlike outlet dampers which add resistance to the airflow in the form of increased pressure drop, IVC’s produce a spin in the air entering the fan.
What is Inlet Vane control?
Inlet Vane Control Dampers are used when it is necessary to move the air entering the venturi of a centrifugal fan in the same direction as the rotation of the impeller. This allows the air entering the fan to increase its efficiency by reducing its energy requirements and consequently the running costs.
What is a vortex damper?
Vortex dampers are used at the fan inlet to spin the entering air or gas in the direction of fan wheel rotation. Vortex dampers eliminate the center bearing hub to minimize gas flow resistance and increase the life of the blades.
How does a fan damper work?
Automatic Dampers Designed to open automatically when the fan is energized and to close by gravity when power is turned off, these parallel blade, end pivoted dampers provide a mechanism which prevents the air from back flowing through the system while also serving to exclude outside elements such as rain and snow.
What is VFD and exhaust fans?
A variable frequency drive (VFD) is an electrical device used to control the speed of a standard three-phase induction motor. A VFD allows you to conveniently adjust the speed of a motor by changing the frequency applied to the motor. When the CO system calls for the fans, they will ramp up to between 30 and 50% speed.
What is the difference between fans and blowers?
A fan circulates air around an entire room, or space. A blower circulates the air only on the specific or pointed area. It is uses less pressure to produce large amounts of gas.
Can exhaust fans have VFDS?
Many of our clients also find that installing a VFD gives the additional benefit of noise reduction. Many exhaust fans are quite noisy run at full speed and may bother building tenants or guests. The installation of a VFD can prevent noise by running the fan at a much reduced speed.
What is blower used for?
Blowers are equipment or devices which increase the velocity of air or gas when passed through equipped impellers. They are mainly used for flow of air/gas required for exhausting, aspirating, cooling, ventilating, conveying etc. Blower is also commonly known as Centrifugal Fans in industry.
What is a VFD fan?
A VFD is a motor controller that can adjust the motor speed and thereby change the fan speed. This allows the fan user to adjust airflow by either decreasing or increasing the motor’s speed.
What is better than a fan?
While an air cooler is more effective in terms of cooling, whether you opt for one will come down to your budget and your needs. If you have a bit more to spend, an air cooler may be the way to go.
What is a variable inlet vane damper?
Vane dampers (also known as Variable Inlet Vane Damper (VIV), Inlet Vane Control Damper (IVC), Radial Inlet Vane Damper, and Vortex damper among others) perform the same basic function: they pre-spin air, in the same direction as the fan rotation, before it enters the fan inlet.
What is a radial vane damper used for?
The radial vane damper (IVC) is predominantly used on fan inlet applications, offering an enhanced level of flow and pressure control. A radial vane damper has multiple blades arranged around a central hub enhancing the performance of the fan by introducing swirl into the fan inlet providing an efficient method of control.
What are Fan dampers used for?
Fan dampers are used to control the fan flow. Ventmeca designs and manufactures different types of dampers. Variable inlet vanes are an efficient mean to control the airflow. The vanes induce a swirl in the flow entering the fan wheel.
What is an inlet louver damper used for?
An inlet louver damper, installed on the fan inlet box, is another efficient fan flow control device. The parallel blades of the inlet damper deflect the flow on one side on the inlet box to create a swirl at the inlet of the fan wheel.
