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Question
what is the relationship between psi,cfm & bar in the air 
compressor?
 Question Submitted By :: Mechanical-Engineering
I also faced this Question!!     Answer Posted By  
 
Answer
# 1
cfm-cubic feet per minute 
Is This Answer Correct ?    59 Yes 8 No
Santosh Raikar
 
Answer
# 2
psi and bar is the units for pressures,
1bar = 14.503psi
psi---pounds per square inch.
bar---1 bar= 1 kg/cm2.
mention capacity of the compressor is in cfm
cfm - cubic feet per minute
 
Is This Answer Correct ?    40 Yes 3 No
K.n.sreekanth
 
 
 
Answer
# 3
These three mentions the Pressure of the Air
compressor.These actually are the units of Pressure in
various metric standards such as MKS, BTU and SI.
1. psi---pounds per square inch.
2. cfm--- dont know. help me
3. bar---1 bar= 1 kg/cm2. Unit of Pressure.
 
Is This Answer Correct ?    33 Yes 11 No
Magesh
 
Answer
# 4
Flow rates - CFM / l/min / M3/hr

1 CFM = 28.328 l / min
1 CFM = 1.699 M3 / hr

1 M3 / hr = 0.58857 CFM
1 M3 / hr = 16.667 l / min

1 l / min = 0.0353 CFM
1 l / min = 0.06 M3 / hr

Pressure - bar / psi / mbar / kPa

1 bar = 14.5 psi
1 bar = 1000 mbar
1 bar = 100 kPa

1 psi = 0.06895 bar
1 psi = 68.95 mbar
1 psi = 6.895 kPA

1 mbar = 0.001 bar

1 kPA = 0.01 bar

Volumes - litre / gallon / M3

1 litre = 0.219969 gallon
1 litre = 0.001 M3

1 gallon = 4.54609 litre
1 gallon = 0.004546 M3

1 M3 = 1000 litres
1 M3 = 219.969 gallon

Electrical Power - KW / HP

1 KW = 1.341 HP
1 HP = 0.746 KW

Heat Dissipation - KW - Btu/h

1 KW = 3412.14 Btu/h
1 Btu/h = 0.000293 KW
 
Is This Answer Correct ?    16 Yes 1 No
Sourabh Sharma
 
Answer
# 5
capacity is calculated by cfm & pressure is calculated in psi & bar
CFM = Piston displacement x (1+m-m(pd/ps)exp1/n)

m= percent head clearance expressed as a decimel
pd = discharge pressure = psia x .069 = BAR
ps = suction pressure = psia x .069 = BAR

n=1.2 to 1.35
& 1 bar = 14.50 psi
 
Is This Answer Correct ?    12 Yes 1 No
Pankaj Singh Pathania
 
Answer
# 6
psi and bar is the units for pressures,
1bar = 14.503psi
psi---pounds per square inch.
bar---1 bar= 1 kg/cm2.
mention capacity of the compressor is in cfm
cfm - cubic feet per minute
 
Is This Answer Correct ?    1 Yes 0 No
M.ranjithkumar
 
Answer
# 7
I need 2CFM & 10 Bar pressure what compressor should I install in KW? 
Is This Answer Correct ?    0 Yes 0 No
Mueen Ud Din Bajwa
 
Answer
# 8
psi and bar is the units for pressures,
1bar = 14.503psi
psi---pounds per square inch.
bar---1 bar= 10^5 pascals
= 100000 N/m2
= (100000* 10kg)/(10^4 cm2)
= 100 kg/cm2
 
Is This Answer Correct ?    6 Yes 9 No
Karteek
 

 
 
 
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