Q: What is the true cost of
compressed air?
A: 15% fixed cost for
the compressor, installation, depreciation and insurance.
20% operating cost
for inspection, maintenance and repair.
65% power cost for energy and demand
to operate the system
At $0.06 per kWhr, the estimated cost of compressed
air is $0.02 per 100 cfm ($0.0002 per cubic foot). A 10 hp compressor delivering
35 cfm = $0.007/minute, $0.42/hour, $10.08/day, $302.40/month or $3,628.80/year. Q:
What is the hidden cost of bad air quality?
A: Bad Air = Repair
Cost + Replacement Cost + Lost Production. Q:
What is the cost of pressure drops?
A: Avoid costly pressure
drops and save money. NOTE: A 10 hp compressor producing 35 cfm at 100 psig and
connected to a straight run of 100 feet of 1" diameter pipe will result in
a .27 psi pressure drop. Every 90° elbow will equal to an additional 25 feet
of pipe. Four elbows, another loss of 1.12 psi. Each lost pound of pressure equals
the loss of .5 percent horsepower. Horsepower equates to power; power equates
to money. Q: What is the cost of an air leak?
A: Eliminate air leaks and save money. The cost of a 1.8" air leak at
100 psi (26 cubic feet per minute) represents $0.31 per hour or $313 for every
10,000 hours of operation. Fix the leak and save money. | 
