working of Centrifugal compressor

-

 Centrifugal compressor


In a multistage centrifugal compressor with intercooler, air  enters the first stage compressor casing  and passes into the eye or centre of the first stage impeller.


The rotation of the impeller imparts a high velocity to the air as it moves  radially outward into the diffuser or intercooler area where its temperature is reduced.

The air  is then directed into the eye of the second stage impeller where more compressions takes place and similarly to each stage of the machine. 

multistage-centrifugal air compressors are generally used for handling large air volumes at pressures up to 150 PSI and higher .

centrifugal compressors are often used for  instrument air services.multistage units can handle large air volumes at pressure to 150 psig and higher.


Comments

Post a Comment

if you have any doubts,please let me know

Popular posts from this blog

Foil type strain gauge

-
Image
Foil type strain gauge In Foil type strain gauge we use thin sheets or foils of 5 micro metre thick. by photo etching or masked vacuum deposition process , based on our requirement or application we can shaped the strain gauge. The end turns are made fat so as to reduce the contribution from the transverse strain which is a superiors input. Metal Foil Strain Gauge The arrangement consists of the following; The metal foil of 0.02mm thick is produced using the printed circuit technique. This metal foil is produced on one side of the plastic backing. Leads are soldered to the metal foil for electrically connecting the strain gauge to a measuring instrument (wheat stone bridge). Operations of Metal foil Strain gauge With the help of an adhesive material, the strain gauge is pasted/bonded on the structure under study. Now the structure is subjected to a force (tensile or compressive). Due to the force, the structure will change the dimension. As the strain gauge is bonded to the structure, ...
Read more

Working of hair hygrometer.

-
Image
 Hair hygrometer In the hair hygrometer, horse hair is used to sense the relative humidity because of horse hair is sensitive to humidity. so as the humidity increase or decrease also the length of the horse hair is increase or decrease. by using this property of  horse hair we can measure the humidity. Construction and working As we can see in above figure, there is a number of horse hair connected as shown in the figure. One end of the  Pointer is connected to pivot and other end of the  pointer  is move on the calibrated scale. this scale is calibrated in terms of relative humidity. now as humidity is increase or decrease the length of the hair hygrometer is also increase and decrease. So the pointer is move accordingly on the calibrated scale due to mechanical connection as show in figure. This pointer indicate the relative humidity.
Read more

Wire wound strain gauge

-
Image
Wirewound strain gauge There are two types of wirewound strain gauge  bonded and unbonded. Bonded strain gauge It consists of specimen surface  Gauge is directly bonded with the surface of the specimen  surface being tested. The thin layer of adhesive cement is also there this cement is  not only serve to transmit the strain from the specimen to the gauge wire but also act as an insulator. Depending upon the application the bonded strain gauge have various structure so we can use this structure as our application. Unbonded strain gauge These strain gauges are not directly bonded onto the surface of the structure under study. Hence they are termed as unbounded strain gauges. Description of the Unbonded Strain gauges: The arrangement of an unbonded strain gauges consists of the following. Two frames P and Q carrying rigidly fixed insulated pins as shown in diagram. these two frames can move relative with respect to each other and they are ...
Read more