Compressor characteristics, Other Engineering

Assignment Help:

Compressor characteristics:

When a compressor is designed it is essential to establish the points at which it is likely to surge. Tests are carried out to determine the relationship between pressure ratio and mass flow at speeds covering the whole working range of the compressor. The results are recorded on a series of curves known as surge lines. To obtain the curves, the compressor is run at a constant speed, the mass airflow is gradually decreased and during this test the pressure ratio is carefully monitored. As the mass airflow reduces, there is an increase in pressure ratio. Eventually the compressor airflow becomes turbulent and the compressor surges. When this occurs, there is a rapid drop in pressure. The tests are carried out at various speeds until the whole working range of the compressor has been covered. During the test the points at which turbulence occurred at the various speeds are plotted. The points are then connected by drawing a line, this line is the surge line of the particular compressor being tested. During normal operation the engine is never allowed to operate beyond the surge line. A safety margin is established and the fuel and airflow control systems are adjusted so the engine will run within the safe limits. Figure 4.15 refers.

2095_COMPRESSOR CHARACTERISTICS.png


Related Discussions:- Compressor characteristics

Logic gates and gate, Expertsmind.com  brings you unique solution in Elect...

Expertsmind.com  brings you unique solution in Electrical Engineering Logic GATES   Logic gates process one or more input signals in a logical manner. Depending on th

Sources of engine noise - aircraft design, sources of engine noise To u...

sources of engine noise To understand the problem of engine noise suppression, it is necessary to have a working knowledge of the noise sources and their relative importance.

Synchro resolvers for low load, Synchro resolvers for low load: Both tr...

Synchro resolvers for low load: Both transmitter and receiver rotors are energised by the same AC supply and will induce equal and opposing voltages in the stator coils provide

Thermo electric thermometer, how thermoelecteric thermometer is contructed ...

how thermoelecteric thermometer is contructed and how it working

Installation of propeller, INSTALLATION OF PROPELLER The method of inst...

INSTALLATION OF PROPELLER The method of installation will depend on the type of propeller, and all instructions detailed in the appropriate AMM should be carefully followed; th

Linear programming application in software industry, What could be applicat...

What could be application of linear programming in software development?

Vlsi, Working of bi- CMOS invertor in vlsi

Working of bi- CMOS invertor in vlsi

Light wave and matters, Expertsmind.com brings you unique solution in phy...

Expertsmind.com brings you unique solution in physics -          What is light? -            -          Light is an electromagnetic wave that also comes in "photons"

Depreciation Tax Calculation, Depreciation Calculation Two most popular me...

Depreciation Calculation Two most popular methods of charging depreciation are: straight line and diminishing balance or written-down value (WDV) methods. For reporting to the sha

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd