Hank VanOrmer - Air Power USA
Over the years of reviewing compressed air systems through North America we have observed a growing application problem in applying air compressors and compressed air dryers in “High Temperature Ambient”, particularly in general industry with medium sized air compressors,  50 HP to 300 HP.

The plant installs a new rotary compressor package.  It is usually air cooled, because cooling water is “expensive” and or requires significant treatment.  Air cooled compressors with a “built in” air cooled aftercooler carries a significantly lower initial price than a water cooled unit with a separate cooling tower / pumping station. 

Rotary compressor packages have been
the predominant number of units sold over
the years.  Air cooled oil coolers / after
coolers is also the predominant choice of
cooling media.

Next comes the filter, dryer for
“General Industrial Air” – little or no liquid
water with a pressure dewpoint 20 degree F
or more below the expected plant
temperature.  By normal standards a two
stage refrigerated dryer is selected to
deliver a rated +40 degree F pressure
dewpoint when the inlet air is 100 psig,
100 degree F inlet temperature and the
ambient temperature is 100 degree F.  The
ambient temperature rating reflects the
effect of ambient temperature on the AIR COOLED EVAPORATOR. 

Often the refrigerated dryer is selected with the full flow rating in SCFM to meet the full load delivered air from the compressor.  For example:  you might have a rotary screw compressor with a full load delivered air of 1000 scfm at 100 psig and air cooled oil and after coolers.  To this the plant applies a refrigerated dryer rated to handle a full load flow of 1000 scfm at 100 degree F inlet temperature and 100 degree F ambient temperature, and 100 psig inlet pressure.  If the ambient temperature is expected to be over 100 degree F, a water cooled evaporator will enhance the refrigerated system performance compared to air cooled.  For this exercise, we will disregard this effect either way.  Click here to read more.
Compressed Air Drying in Hot Ambient
with Air Cooled Equipment
Air Solutions
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Example: On an air compressor that costs $20,000, the
depreciation deduction is $12,000, or you can deduct the full $20,000 from the taxable income as an expense.

How can the
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Please seek the advice of a qualified tax professional
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How Much Water is in Your AIR
Ambient air contains moisture, aerosols and dirt particles.  Removing moisture from compressed air requires well maintained equipment - after coolers, dryers, drain traps and filter elements. 
The following diagrahm shows how much moisture goes through your compressor and how much is removed with well maintained equipment.
Moist Air
Customer Training Program


This program is designed to educate you, our customer, on the basic requirements of operating and maintaining your Atlas Copco GX & GA air compressors.  This class will also instruct you on how to achieve superior return on your investment and maximize operating efficiencies.

The training will take place at our corporate office and you will learn the following:
Equipment
 Basic operation of oil flooded compressors
 Control items (purpose, operation of, etc.)
 Elektronikon control operation (setting parameters, reading and resetting shutdowns / warnings, checking saved data)

Basic Maintenance Requirements
 Daily checks & Weekly checks
 Quarterly service requirements
 Semi-Annual and Annual service requirements
 Maintaining compliance on factory warranty programs
Impacts of Environmental  and Operating Conditions
 Identifying environmental and operating issues
 Understanding the impact on consumables and other maintenance items
 Correcting environmental and operational issues
Installation, Air System, and Accessory Items
 Factory installation guidelines
 Air system checks
 Quality air accessories

Upcoming training dates:
June 24th
July 29th
August 26th
September 23rd
October 28th
400 SCFM
72 gallons water/day
Rotary Screw





Air Compressor
72 gallons water/day
After Cooler
48 gallons water/day
24 gallons water/day
Refrigerated dryer
23 gallons water/day
1 gallon water/day
Air
System
CONDITIONS
75 Degree F75% relative Humidity400 SCFM air compressor (100 hp)
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