Rating
Axial Turbine
Axial Turbine
Centrifugal or Radial Compressor
An Air Compressor is a mechanical device that increases the pressure of a gas by reducing its volume.
Compressors are similar to pumps: both increase the pressure on a fluid and both can transport the fluid through a pipe. As gases are compressible, the compressor also reduces the volume of a gas. Liquids are relatively incompressible, so the main action of a pump is to pressurize and transport liquids.
Centrifugal Compressors, sometimes referred to as Radial Compressors, are a special class of radial-flow work-absorbing turbo machinery that include pumps, fans, blowers and compressors.
Centrifugal compressors are used throughout industry because they have fewer rubbing parts, are relatively energy efficient, and give higher airflow than a similarly sized reciprocating compressor (i.e. positive-displacement). Their primary drawback is that they cannot achieve the high compression ratio of reciprocating compressors without multiple stages. Centrifugal fan/blowers are more suited to continuous-duty applications such as ventilation fans, air movers, cooling units, and other uses that require high volume with little or no pressure increase. In contrast, multi-stage reciprocating compressors often achieve discharge pressures of 8,000 to 10,000 psi (55 to 69 MPa). One example of an application of centrifugal compressors is their use in re-injecting natural gas back into oil fields to increase oil production.
Centrifugal compressors are often used in small gas turbine engines like APUs (auxiliary power units) and smaller aircraft gas turbines. A significant reason for this is that with current technology, the equivalent flow axial compressor will be less efficient due primarily to a combination of rotor and variable stator tip-clearance losses. There are few single stage centrifugal compressors capable of pressure-ratios over 10:1, due to stress considerations that severely limit the compressor’s safety, durability and life expectancy.
Additionally for aircraft gas turbines; centrifugal flow compressors offer the advantages of simplicity of manufacture and relatively low cost. This is due to requiring fewer stages to achieve the same pressure rise. The fundamental reason for this stems from a centrifugal compressor’s large change in radius (relative to a multi-stage axial compressor); it is the change in radius that allows the centrifugal compressor to generate large increases in fluid energy over a short axial distance.
About the Author
The author is associated with IPFonline
http://www.ipfonline.com is India’s No. 1 Industrial Product Finder. The portal is a veritable storehouse of information on industrial products/services.
|
|
A Wind Turbine Recipe Book $25.75 A Wind Turbine Recipe Book (Jan 2009 English Units edition) This is the latest edition of Mr. Piggott’s ‘axial flux windmill plans’ as used in the courses he teaches worldwide. The Recipe Book replaces his older plans ‘How to Build a Wind Turbine’ (2005). The Recipe Book is a much better structured document than the older 2005 plans. Rather than evolving ‘organically’ it is carefully planned to … |
|
|
Turbine Aerodynamics: Axial-Flow and Radial-Flow Turbine Design and Analysis $101.55 This book provides a thorough description of actual, working aerodynamic design and analysis systems, for both axial-flow and radial-flow turbines. It describes the basic fluid dynamic and thermodynamic principles, empirical models and numerical methods used for the full range of procedures and analytical tools that an engineer needs for virtually any type of aerodynamic design or analysis activit… |
|
|
Axial and Radial Turbines $150.00 This is the first completely new book for more than a decade specifically devoted to axial and radial turbine design and technology. It starts with the fundamental principles of turbine design, but also includes the latest developments and understanding, including the essential role that computer-based analysis plays today. The coverage includes the aerodynamic and structural analysis of turbine b… |
|
|
Syma 3 Channel S013 Mini Infrared Black Hawk RC Helicopter $13.59 SYMA 3 Channel S013 Mini UH-60 Black Hawk RC Helicopter —NEW!… |
Have A Question?
Are you looking for something but can not find it, or have a question for us? We would love to help you. Just fill out the form below and we will get back to you as soon as possible.
