Latest revision as of 01:45, 21 December 2020

16kW to produce 100CFM at 100PSI - [1]
0.4 kW takes 20 CFM - [2]
The above 2 numbers point to 3kW for 20 CFM - to get 0.4 kW out - or 13% efficiency of air tools. Extremely low.

More:

0.3kW for 7 atm CFM - [3]
Thus yes, if a tool needs 20 CFM at 7 atm - or 7 kW for its output. that is less than 10% efficient.

Links

@@ Line 1: / Line 1: @@
 *16kW to produce 100CFM at 100PSI - [https://www.google.com/search?q=cfm+at+pressure+to+kw&oq=cfm+at+pressure+to+kw&aqs=chrome..69i57.9520j0j7&client=ubuntu&sourceid=chrome&ie=UTF-8]
+*0.4 kW takes 20 CFM - [https://www.airbestpractices.com/technology/pneumatics/pneumatic-vs-electric-tool-calculations-and-considerations]
+*The above 2 numbers point to 3kW for 20 CFM - to get 0.4 kW out - or 13% efficiency of air tools. Extremely low.
+More:
+*0.3kW for 7 atm CFM - [https://www.google.com/search?q=kw+to+cfm&oq=kw+to+cfm&aqs=chrome..69i57.9067j0j4&client=ubuntu&sourceid=chrome&ie=UTF-8]
+*Thus yes, if a tool needs 20 CFM at 7 atm - or 7 kW for its output. that is less than 10% efficient.
+=Links=
+*This post supports overall efficiency being about 5% - [http://www.wisedan.com/airloss.html]
+*[[Low Tech Magazine on Compressed Air Storage]]
+*[[Rotary Screw Compressor]]
+[[Category: Incomplete Pages]] [[Category: Sustainability]]