Showing posts with label radial fans. Show all posts
Showing posts with label radial fans. Show all posts

Thursday, July 27, 2017

Benefits and Applications of Centrifugal Blowers

Of all the different available fans, centrifugal fans, which are also known as centrifugal blowers, are the most common. While many people have heard the name, some still have no real understanding of what the benefits or applications are for this type of blower.

Centrifugal

Centrifugal, which is also known as a radial fan or blower, is a type of high-pressure blower. That means that high-speed blades provide velocity to air and other gasses. In addition to different blade orientations, which include straight, forward curved, and backward curved, these blowers are available in different voltages and speeds. Generally speaking, this high-pressure compressor blower is operated by an electric motor, although some do operate on drive motors.

Because of the volume and pressure of airflow, centrifugal blowers’ primary use is in air conditioning systems. However, these blowers can also be used to control dust, among other things. Based on the unique design of this high-pressure blower, which is often referred to as a hamster wheel, it is the preferred method for air circulation and cooling in office buildings, warehouses, plants, and other large spaces.

Axial

Some people refer to axial fans as blowers. In this case, blades that rotate around an axis work by drawing air in parallel to that axis, followed by forcing air out in the same direction. Although these blowers produce a high rate of airflow, the air is at low pressure. Unlike centrifugal blowers that can keep huge spaces cool, axial blowers are designed for cooling specific small spots or components within machineries like computers and photocopy machines.

Cross Flow

These blowers are commonly used by the electronics and HVAC industries, producing an even laminar airflow that, similar to axial blowers, keeps components from overheating. Whether mounted vertically or horizontally, these blowers are designed to deliver a two-dimensional flow. These blowers work especially well in areas with limited space.

Conclusion

As you can see, there are distinct differences between the three unique types of blowers. The benefit of centrifugal blowers is that they produce high-pressure and large volume airflow that keeps big spaces cool. In comparison, both axial and cross flow blowers are designed to keep various components from overheating.

At NISCO, we offer the perfect solution. You can visit our website to see all the different types of fans and blowers or contact a company representative to get more information.


Contact Us:

Northern Industrial Supply Company Inc.
1730 McPherson Court, Unit #35
Pickering, Ontario
Canada, L1W 3E6
Email: niscopic@globalserve.com
Phone On: 905-831-8067

Thursday, April 27, 2017

A Review of Variable Frequency Drives

Variable frequency drives (VFD), which are also known as AC drives, frequency drives, inverters, speed drives, and micro-drives, are motor controllers capable of driving electric motors. The way this is accomplished is that the frequencies and voltages going to electric motors are varied.

Brief Introduction to Variable Frequency Drives


This type of adjustable speed drive is used primarily in electro-mechanical drive systems as a means of controlling torque but also AC motor speed by varying input voltage and frequency of the motor. There are several applications that use these drives to include smaller appliances to massive mine mill compressors.

Today, roughly 25% of electrical energy in the world is consumed by electric motors within various industrial applications. Using a variable frequency drive in centrifugal load service, motors save energy. Although these drives are extremely popular within North America, they hold a very small market in other parts of the world. The bottom line, installation of variable frequency drives could significantly improve energy efficiency.

Throughout the past four years, the cost and size of variable frequency drives has been dramatically reduced thanks to power electronics technology. In addition, overall performance has been improved upon through advances made in semiconductor switching devices, control and simulation techniques, control software and hardware, and different drive topologies.
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Contact Us:

Northern Industrial Supply Company Inc.
1730 McPherson Court, Unit #35
Pickering, Ontario
Canada, L1W 3E6
Email: niscopic@globalserve.com
Phone On: 905-831-8067