OnlineConversion Forums Welcome to OnlineConversion.com Forums

Go Back   OnlineConversion Forums > Main Forums > Convert and Calculate

Convert and Calculate Post any conversion related questions and discussions here. If you're having trouble converting something, this is where you should post.
* Guest Posting is allowed.

Reply
 
Thread Tools Display Modes
  #1  
Old 01-25-2006, 12:18 AM
ryan turner
Guest
 
Posts: n/a
Default converting Litres per second to CFM

Hi

Most aircompressors quote CFM flow rates, new compressors out are in litres per second. How do I convert Litres per second to CFM?

Thanks
Ryan
Reply With Quote
  #2  
Old 01-25-2006, 03:33 AM
Robert Fogt's Avatar
Robert Fogt Robert Fogt is offline
Administrator
The Golden Calculator Award Over 1000 Posts
 
Join Date: Dec 2005
Location: Seattle, WA
Posts: 3,468
Rep Power: 13
Robert Fogt is on a distinguished road
Default Re: converting Litres per second to CFM

You can do that conversion here:
http://www.onlineconversion.com/flow_rate_volume.htm

CFM is the symbol for cubic foot/minute

1 cubic foot/minute = 0.471 947 45 liter/second
Reply With Quote
  #3  
Old 02-19-2006, 08:53 PM
Unregistered
Guest
 
Posts: n/a
Default Re: converting Litres per second to CFM

my compressor is having 45 liters capacity tank & working pressure is 5.2 kg

4 cfm is capacity

how much time will be required to fill it up
Reply With Quote
  #4  
Old 02-20-2006, 01:00 AM
Robert Fogt's Avatar
Robert Fogt Robert Fogt is offline
Administrator
The Golden Calculator Award Over 1000 Posts
 
Join Date: Dec 2005
Location: Seattle, WA
Posts: 3,468
Rep Power: 13
Robert Fogt is on a distinguished road
Default Re: converting Litres per second to CFM

[..snip..]

See posts below for correction.

Last edited by Robert Fogt; 07-12-2012 at 03:40 AM. Reason: Didnt feel like correcting
Reply With Quote
  #5  
Old 09-20-2007, 12:57 PM
Unregistered
Guest
 
Posts: n/a
Default Re: converting Litres per second to CFM

I'm trying to convert 117 CFM to Liters per square meter per second....

having trouble and could use some help.

thanks

vernon
Reply With Quote
  #6  
Old 09-20-2007, 02:58 PM
gubment_cheez's Avatar
gubment_cheez gubment_cheez is offline
Ultimate Supreme Bacon Cheese Member
Long Time Member The Golden Calculator Award The Tree House Award Over 100 Posts
 
Join Date: Jan 2007
Location: Sac-o-Tomato, Cowafornia
Posts: 354
Rep Power: 8
gubment_cheez is on a distinguished road
Default Re: converting Litres per second to CFM

Quote:
Originally Posted by Unregistered
I'm trying to convert 117 CFM to Liters per square meter per second....

having trouble and could use some help.

thanks

vernon
you can't convert cubic measurements (cubic feet per minute) to square measurements (liters per square meter per second) directly

however 117 cubic feet per minute is equal to 55.217 851 65 liters per second
__________________
duct tape
duct tape
it's better than glue
fixes stuff
just like new
be prepared throughout your life
keep a roll beneath
your pillow at night
Reply With Quote
  #7  
Old 02-26-2008, 10:10 AM
JohnS JohnS is offline
Moderator
Long Time Member The Golden Calculator Award Over 5000 Posts
 
Join Date: Dec 2007
Location: SE Michigan, USA
Posts: 9,547
Rep Power: 19
JohnS will become famous soon enough
Default Re: converting Litres per second to CFM

Quote:
Originally Posted by Robert Fogt
4 cfm is about 113 liters/minute

113 liters/minute / 45 liters = 2.5 minutes
Two problems:
*The math is inverted
*The flow is rated in raw, atmospheric air. The 45 L tank is at pressure, 5 kgf/cm² (I assume that's what he meant) is 4.8 atm, so the 45 L is the equivalent of 216 L at 1 atm.
(I have no idea what the temperature of the compressed air will be, depending on cooler performance, so I'll just ignore it). 216 L/ 113L/min = 1.9 minutes.

(Ideally both temperature and pressure should be known and used to calculate how many standard cubic feet or liters are required to fill the 45 L tank. Some heating of the compressed air is unavoidable, so the tank contents will be somewhat less than 216 standard liters)
Reply With Quote
  #8  
Old 11-24-2009, 05:11 AM
Unregistered
Guest
 
Posts: n/a
Default Re: converting Litres per second to CFM

my a/c is 603 l/s what is the cfm?

having trouble and could use some help.

thanks

vernon[/QUOTE]
Reply With Quote
  #9  
Old 06-07-2010, 02:14 AM
brijmohan1982@yahoo.com
Guest
 
Posts: n/a
Default Re: 5 liter/hours to cfm

plese convert
Reply With Quote
  #10  
Old 06-07-2010, 05:23 AM
JohnS JohnS is offline
Moderator
Long Time Member The Golden Calculator Award Over 5000 Posts
 
Join Date: Dec 2007
Location: SE Michigan, USA
Posts: 9,547
Rep Power: 19
JohnS will become famous soon enough
Default Re: 5 liter/hours to cfm

Quote:
Originally Posted by brijmohan1982@yahoo.com View Post
plese convert
Recognize that 1 L = 1 dm³

5 dm³/h x 1h/60 min x (1ft/3.048 dm)³ = 0.00294 ft³/min
Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -8. The time now is 02:58 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Copyright ©1997-2005, 2007, OnlineConversion.com