Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Centrifugal flow - Compressors in Aircraft:
The centrifugal impeller is rotated at high speed by the turbine and centrifugal action causes the air between the impeller vanes to accelerate radially outwards until it is thrown off at the tip into the diffuser. The radial movement of the air across the impeller, from eye to tip, causes a drop in air pressure at the eye and the faster the impeller is turning, the lower the pressure at the eye becomes. The low pressure existing at the eye of the revolving impeller induces a continuous flow of air through the engine intake and into the eye of the impeller. The air, in turn, is accelerated across the impeller and passed into the diffuser. The kinetic energy in the air is then converted to pressure energy ready to enter the combustion chamber. The action of the diffuser is illustrated in figure.
The final volume and mass airflow delivered by the centrifugal compressor is dependent on:
a Pressure ratiob Operating RPMc Diameter of the impeller
NOTE: This is assuming a constant air density at the inlet of the compressor.
Pressure Ratio
The ratio of the inlet pressure to outlet pressure of the compressor is called pressure ratio. The higher the pressure of the air the more efficiently the thrust will be produced with a corresponding improvement to the fuel economy of the engine. The maximum pressure ratio normally obtainable from a single stage centrifugal compressor is approximately 5:1 and from a two stage, approximately 8:1.Design of the more modern centrifugal compressors sees them approaching pressure ratios of 15:1.
Diameter of Impeller
A large impeller will deliver a greater mass of air than a small impeller, however a large diameter compressor leads to an increase in the frontal area of the engine causing excess drag forces on the aircraft.
I need report explain every things about my project
Provided a 1D array of integers, find all combinations of 3 values from this set such that: a+b+c=0 For example, if one were provided with the set [3 1 3 -4 -6], the resulting answ
A continuous fractionating column separates benzene and toluene into two product streams. We were given all the mass fractions which makes this question easy because all we must ca
How do the numbers calculated in f. and g. compare to the values in California and in the USA? The source of CO 2 emissions in Florida differ a lot from California. Transportat
What is Networth? Networth is the complete resources without complete obligations of an organization. Networth means equity and it is the present resources without present oblig
The access time of ROM using bipolar transistors is about
2. Write a MATLAB program to perform discounted reward value iteration. Show me the MATLAB code and also an output from your code for solving the problem provided in the data above
Degree of reaction measures the way compression or expansion (for turbines) is shared between rotor and stator shared between rotor and stator of a stage (stage ≡ rotor + stator)
The following is the capital structure of X Ltd. as on 31st Dec 2003 Rs in m
What Is Inflation? In economic terms, blowing up is the development of the costs of products or solutions in the given economic climate over a time period. As the costs increase
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd