Compressor characteristics, Other Engineering

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

Posted Date: 9/11/2012 8:56:28 AM | Location : United States







Related Discussions:- Compressor characteristics, Assignment Help, Ask Question on Compressor characteristics, Get Answer, Expert's Help, Compressor characteristics Discussions

Write discussion on Compressor characteristics
Your posts are moderated
Related Questions
what is explicit conceptual model in SE

Problem 1 Case Study - Development of a new sewage secondary treatment plant Context and location: Consideration is being given to the development of a new major sewage seco

HI,I GOT ASSIGNMENTS TO TURN IN WITHIN 24 HOURS.PLEASE IS THERE ANYWAY YOU COULD HELP OUT?


Two types of climb will be considered. The first is the so-called steady climb. This is a climb in which the all acceleration components (i.e. parallel and perpendicular to the fli

Industries that manufacture racing cars prefers nickel based alloys for engine components and iron based alloys for structural parts. Justify this statement.


A basic instrumentation system consists of a transducer, conditioning amplifier, and analog digital converter connected (in general) by analog and digital transmission lines.

Q. What are the commented carbides? How are they processed? Ans. These are very important products of powder metallurgy and finds wide applications as cutting tools, wir

numericals