Question 1 Axial and centrifugal compressors
a. What are the main parts of a centrifugal compressor and describe the function of each.
b. What are the main parts of an axial flow compressor
c. Describe the air flow through a centrifugal compressor
d. Describe the air flow through an axial flow compressor
e. What is a stage in an axial flow compressor and describe the air flow through a stage
f. Given an explanation as to why axial flow compressor rotor blades are twisted
g. List two methods of attaching rotor blades to a compressor drum
h. State the advantages and disadvantages of 1. Centrifugal compressor 2. Axial flow compressor
i. What are the main advantages of twin spool compressor
j. Given an explanation of the term compressor stall
k. Given the explanation of the term compressor surge
l. List three situation that can cause a compressor to stall
m. Given an explanation as how variables inlet guide vanes can reduce or stop a compressor from stalling.