COMPRESSOR OPERATION

THIS PRESENTATION WILL GIVE A SIMPLE DEMONSTRATION OF HOW JET ENGINE

COMPRESSORS WORK

COMPRESSOR OPERATION

THE COMPRESSING ACTION CONSISTS OF TAKING A QUANTITY OF AIR AND FORCING IT INTO A SMALLER AND SMALLER SPACE

THIS SQUARE REPRESENTS A QUANTITY OF AIR

THIS SQUARE REPRESENTS THE SAME QUANTITY OF AIR BUT SQUEEZED INTO A SMALLER VOLUME

LET’S SEE HOW THIS IS DONE

PUSH BACK

SQUEEZE

COMPRESSOR OPERATION

PUSH BACK

SQUEEZE

COMPRESSOR OPERATION

PUSH BACK

SQUEEZE

COMPRESSOR OPERATION

PUSH BACK

SQUEEZE

COMPRESSOR OPERATION

COMPRESSOR OPERATION

BIG AT FRONT SMALL AT REAR

THIS IS WHY COMPRESSORS ARE SHAPED THE WAY THEY ARE

COMPRESSOR OPERATION

FRONT REAR

COMPRESSORS HAVE A SERIES OF ‘STAGES’

EACH STAGE GIVES A SMALL PRESSURE RISE OVER THE PREVIOUS STAGE

COMPRESSOR OPERATION

FRONT REAR

EACH STAGE CONSISTS OF A ‘ROTOR BLADE’ IN FRONT OF A ‘STATOR VANE’

FIRST

STAGE

RO

TO

R

ST

AT

OR

SECOND

STAGE

RO

TO

R

ST

AT

OR

THIRD

STAGE

RO

TO

R

ST

AT

OR

FOURTH

STAGE

RO

TO

R

ST

AT

OR

FIFTH

STAGE

RO

TO

R

ST

AT

OR

FRONT REAR

ROTOR BLADE ROTATE LIKE PROPELLOR BLADES

RO

TO

R

RO

TO

R

RO

TO

R

RO

TO

R

RO

TO

R

STATOR VANES ARE FIXED TO THE ENGINE CASING

ST

AT

OR

S

ST

AT

OR

S

ST

AT

OR

S

ST

AT

OR

S

ST

AT

OR

S

COMPRESSOR OPERATION

COMPRESSOR ROTOR BLADES DO THE PUSHING BACK

FRONT REAR

COMPRESSOR OPERATION

COMPRESSOR STATORS VANES DO THE SQUEEZING

I.E. COMPRESSING

FRONT REAR

COMPRESSOR OPERATION

WHENEVER AIR IS FORCED INTO A SMALLER SPACE TWO THINGS HAPPEN

FIRST:- THE PRESSURE OF THE TRAPPED AIR INCREASES

SECOND:- THE TEMPERATURE OF THE TRAPPED AIR ALSO INCREASES

YOU CAN PROVE THESE TWO EFFECTS WITH A BICYCLE PUMP!

IN A JET ENGINE COMPRESSOR, IT IS A CONSTANT FLOW OF AIR

CONSTANTLY BEING COMPRESSED.