Here's the recent articles submitted by oleg tchechel
Articles By oleg tchechel
Centrifugal Fan And Ventilators
By: oleg tchechel
Centrifugal blowers have a number of blades mounted around the hub, which turns on a shaft that passes through the housing. Centrifugal fan can come in three different types of fan blades. They can come with forward curved blades, backward curved blades and straight radial blades. The type you need will come down to what the conditions are within the area in which you intend to use the device.(read
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View : 462 Times
Category : Business
Centrifugal Blower Vs Axial Blower
By: oleg tchechel
Tube Axial Fans are high-volume low-pressure fan line with a wide range of available sizes. Suitable for temperatures up to 250 deg F. Vaneaxial Fans – Axial flow fans with higher pressure capability due to the presence of static vanes.(read
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View : 375 Times
Category : Shopping/Product Reviews
Ventilator Fans And Blowers
By: oleg tchechel
Axial flow ventilator blows the air in line with the axis of rotation and there must be blades with space between them. With few exceptions, the axial blower or fan must not have a lot of back pressure and will work a lot better if the blade is shrouded. One obvious exception is the turbine compressor used in jet engines, but this requires very tight fittings and very high speed so the air is being rammed in against the outgoing air much faster than it can move - it uses a lot of power and makes a lot of noise. Shrouding works better because the greatest loss in an unshrouded fan is the air coming off near the tips and immediately turning out and back circulating only through the fan and not through the room. The most common shrouded fan people see is muffin style fan in computers. An axial blower can have multiple sets of blades and the blades can even over lap so light is not visible through the fan. Fans are used most often for moving large quantities of air between spaces at atmospheric pressure.(read
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View : 361 Times
Category : Business
Ventilation By Forced Draft Fan
By: oleg tchechel
Forced draft ventilation is used to control indoor air quality. Excess humidity, odors, and contaminants can often be controlled via dilution or replacement with outside air. However, in humid climates much energy is required to remove excess moisture from ventilation air.(read
entire article)
View : 361 Times
Category : Business
Industrial And Process Ventilation
By: oleg tchechel
Blowers and fans include several types such as duct fans, roof and ceiling ventilators, wall mounted fans, pressure blowers, and freestanding units with different mounting options. For extreme conditions and plants, drum fans can be used to move even larger amounts of air. These types of fans come with wheels attached and can be rolled to the area that circulation is needed the most. Some manufacturers even sell just the fan heads for a more freedom and a reduced assembly and cost on the company.(read
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View : 374 Times
Category : Service
High Pressure Radial Blowers And Fans
By: oleg tchechel
A radial fan can be just your normal portable fan or a ceiling fan is normal is most humid areas. When you do have a ceiling fan it's important to note that most of them must be put in by an experienced electrician otherwise you could have some serious problems with them. They are certainly a lot more economical than running an air conditioner, which is why they are so popular in humid areas where having some air flow cools down the place. Radial fans are also found in most air conditioning units now, they are used to blow cooled air out of the unit and into the room.(read
entire article)
View : 385 Times
Category : Others
High Pressure Regenerative Channel Blowers
By: oleg tchechel
The special features of regenerative blowers include: control panels and pressure or vacuum gauges. Most control panels include adjustment controls instead of a simple, regulator knob. Regenerative blowers can also have a pressure or vacuum gauge or sensor with a dial or digital readout that monitors the pressure or vacuum levels in the system.(read
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View : 409 Times
Category : Technology, Gadget and Science
Industrial Power Roof Ventilator Prv
By: oleg tchechel
Reliable ventilation system prevents smoke logging, allows people to escape quickly, minimizes damages to property and contents and enables firemen to attack the fire without hindrance. Such power roof ventilators have the added advantage of providing normal day to day ventilation and in many cases can also be fitted with duct work for use in multi storey buildings.(read
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View : 365 Times
Category : Business
Axial In-line Fans For Building Ventilation
By: oleg tchechel
Axial flow fans performance ranges from 100 to 500,000 cubic feet per minute (3,000 to 15,000 cubic meters per minute). Impellers usually have blades with airfoil cross-sections.(read
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View : 388 Times
Category : Education
Industrial Channel Pressure Blower
By: oleg tchechel
Most regenerative blowers are single stage: the air travels around the blower housing once and is discharged. Two-stage regenerative blowers can provide almost twice the pressure or vacuum of single-stage units. In a single-impeller, two-stage unit, air makes one revolution around the front side of the impeller. Then, instead of being discharged, the air is channeled to the backside of the impeller through internal porting. Air then makes another revolution around the backside of the impeller before it is discharged. Other two-stage configurations are also available, including designs that use two separate impellers in one housing or two impellers and housings.(read
entire article)
View : 372 Times
Category : Business
