Principle of Working
The centrifugal fan uses the centrifugal power generated from the rotation of impellers to increase the pressure of air/gases. When the impellers rotate, the gas near the impellers is thrown-off from the impellers due to the centrifugal force and then moves into the fan casing. As a result the gas pressure in the fan casing is increased. The gas is then guided to the exit via outlet ducts. After the gas is thrown-off, the gas pressure in the middle region of the impellers decreases. The gas from the impeller eye rushes in to normalize this pressure. This cycle repeats and therefore the gas can be continuously transferred.
| Differences between fans and blowers | ||
| Equipment | Pressure Ratio | Pressure rise (mm Hg) |
|---|---|---|
| Fans | Up to 1.1 | 1136 |
| Blowers | 1.1 to 1.2 | 1136-2066 |
Read more about this topic: Centrifugal Fan
Famous quotes containing the words principle of, principle and/or working:
“The principle of subordination is the great bond of union and harmony through the universe.”
—Catherine E. Beecher (1800–1878)
“All Protestantism, even the most cold and passive, is a sort of dissent. But the religion most prevalent in our northern colonies is a refinement on the principle of resistance; it is the dissidence of dissent, and the Protestantism of the Protestant religion.”
—Edmund Burke (1729–1797)
“If the devil were to offer me a resurgence of what is commonly called virility, I’d decline. “Just keep my liver and lungs in good working order,” I’d reply, “so I can go on drinking and smoking!””
—Luis Buñuel (1900–1983)