Browse  |   Placement Papers  |   Company  |   Code Snippets  |   Certifications  |   Visa Questions Post Question  |   Post Answer  |   My Panel  |   Search  |   Articles  |   Topics  |   ERRORS new
 Did you received any Funny E-Mails from your Friends and like to share with rest of our friends? Yeah!! you can post that stuff   HERE

 Categories >> Engineering >> Mechanical Engineering

 Civil Engineering Interview Questions (2985) Mechanical Engineering Interview Questions (3261) Electrical Engineering Interview Questions (13162) Electronics Communications Interview Questions (2344) Chemical Engineering Interview Questions (407) Aeronautical Engineering Interview Questions (76) Bio Engineering Interview Questions (16) Metallurgy Interview Questions (79) Industrial Engineering Interview Questions (162) Instrumentation Interview Questions (2308) Automobile Engineering Interview Questions (104) Mechatronics Engineering Interview Questions (38) Marine Engineering Interview Questions (43) Power Plant Engineering Interview Questions (69) Engineering AllOther Interview Questions (1185)
Question
```what is the relationship between psi,cfm & bar in the air
compressor?```
Question Submitted By :: Venki_shaju
I also faced this Question!!     Rank Answer Posted By

Re: what is the relationship between psi,cfm & bar in the air compressor?
# 1
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 ? 30 Yes 11 No
Magesh

Re: what is the relationship between psi,cfm & bar in the air compressor?
# 2
cfm-cubic feet per minute
 Is This Answer Correct ? 52 Yes 8 No
Santosh Raikar

Re: what is the relationship between psi,cfm & bar in the air compressor?
# 3
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 ? 37 Yes 3 No
K.n.sreekanth

Re: what is the relationship between psi,cfm & bar in the air compressor?
# 4
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 ? 11 Yes 1 No
Pankaj Singh Pathania

Re: what is the relationship between psi,cfm & bar in the air compressor?
# 5
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 ? 5 Yes 9 No
Karteek

Re: what is the relationship between psi,cfm & bar in the air compressor?
# 6
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 0 No
Sourabh Sharma

Re: what is the relationship between psi,cfm & bar in the air compressor?
# 7
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

  Question Asked @ Answers Other Mechanical Engineering Interview Questions what are the duties of a mechanical engineer in a gas power plant..? 1 what is the electrical load for 1TR Ac? BEL 1 In d thermal power plant why D/A placed on height. 3 • What have you done to improve your knowledge in the last year? Petro-Star-Mount 1 HOW WOULD YOU FIND THE EXACT NUMBER OF WHITE MARUTI CARS IN MUMBAI??? Zycus-Infotech 2 Procedure of boiler commissioning part by part 1 what is more dangerous longitudinal stress or Hoop stress and why? Bhel 3 What are the things needed to finish interview successfully from the perspective of interviewee ? NTPC 5 What are the protections required to protect turbine? NTPC 4 why water's critical point is 4*c ? Essar 4 Tell about payment ? 2 what will happen if there is no expansion valve in the air conditioning system? is there any possiblities of working an AC system without expansion valve? 4 For more Mechanical Engineering Interview Questions Click Here