3 replies to this topic

[kalpana]

when barometer read 28 in Hg , 10 psia is equivalent to how much psi suction ?

when barometer read 740 mm Hg ,20000 N/m2 suction is same as how much m H20 abs?

 

i am not able to slove this question sir plz help me out and plz suggest me book for clearing such concept

[Zauberberg]

Are you talking of absolute pressure, gauge pressure, or vacuum?

 

http://hyperphysics....hbase/pman.html

http://www.engineeri...rter-d_460.html

[breizh]

Hi kalpana ,

 

Consider this online calculator : http://www.onlinecon...om/pressure.htm

 

As Dejan said clarifications are needed , I don't understand the word suction in your description .

 

http://www.wikihow.c...metric-Pressure

 

Good luck

 

Breizh

Edited by breizh, 15 March 2015 - 07:11 AM.

[Napo]

Hello Kalpana,

 

Attach I send you a solution.

 

You need understand very well the definition about pressure absolute (Pabs), pressure manometric (Pman), and pressure atmospheric (Patm). When P man is negative this pressure is vacuum (Pvac).

 

Regards,

 

Napo.

Attached Files

•  Pressure.pdf   33.72KB   21 downloads