![]() ![]() #COMPRESSOR PERFORMANCE CURVES PDF SOFTWARE#Run the Arm field FM42-304 software on the PC, and check that the software indicates ‘WV: OK’ in the bottom right-hand corner of the window. Check that the red and green indicator lights on the front of the IFD7 are illuminated. Check that the IFD is connected to a suitable mains supply, and check the socket on the front is connected using the lead provided to a suitable PC. Operating Instructions and Procedure Check that the sensor and power leads from the FM42 are connected to the sockets on the front of the IFD7. Pre-Lab What is the difference between a reciprocating and rotary compressor? What are the advantages of rotary compressors over reciprocating compressors? e. #COMPRESSOR PERFORMANCE CURVES PDF PC#Equipment Armfield FM42 Centrifugal Compressor Demonstration Unit Armfield WD7 Interface Device Compatible PC (not supplied) running Armfield FM42-304 softwareįigure 10.2 Centrifugal compressor experimental set upĭ. Some of the applications are cooling systems, burner air supply for furnace applications etc. Centrifugal compressors are used in applications requiring pressurized air at high flow rates. 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. This is due to requiring fewer stages to achieve the same pressure rise. Additionally for aircraft gas-turbines centrifugal flow compressors offer the advantages of simplicity of manufacture and relatively low cost. There are few single stage centrifugal compressors capable of pressure-ratios over 10:1, due to stress considerations which severely limit the compressor's safety, durability and life expectancy. 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. Applications Centrifugal compressors are often used in small gas turbine engines like APUs (auxiliary power units) and smaller aircraft gas turbines. One example of an application of centrifugal compressors is their use in re-injecting natural gas back into oil fields to increase oil production. In contrast, multi-stage reciprocating compressors often achieve discharge pressures of 55 to 69 MPa. 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. Their primary drawback is that they cannot achieve the high compression ratio of reciprocating compressors without multiple stages. This kinetic energy is then converted to an increase in static pressure by slowing the flow through a diffuser.įigure 10.1 Centrifugal pump Advantages Centrifugal compressors are used throughout industry because they have fewer rubbing parts, are relatively energy efficient, and give higher airflow than a similarly sized In an idealized sense, the dynamic compressor achieves a pressure rise by adding kinetic-energy/velocity to a continuous flow of fluid through the rotor or impeller. In contrast, modern centrifugal compressors are higher in speed and analysis must deal with compressible flow. What differentiates these early turbo machines from compressors is that the working fluid can be considered incompressible, thus permitting accurate analysis through Bernoulli's equation. The earliest forms of these dynamic-turbo machines were pumps, fans and blowers. ![]() Introduction Centrifugal flow 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. Plot performance curves and compressor map. To find the performance characteristics of the centrifugal compressor by conducting experiments. To understand the working of a centrifugal compressor. Objective The objectives of this experiment are: 1. Experiment 6 Performance of centrifugal compressor a. ![]()
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