Chemical Engineering March 2011 - 33

FOCUS ON
Compressors
Ingersoll Rand
This compressor matches
output to demand
program can reduce equipment
downtime,
The Nirvana R190-225ne (photo) is a
variable-speed-drive rotary-screw air
compressor with an advanced motor
design that allows users to match compressor
output to required demand.
In particular, the Nirvana R190225ne
features a patented modular
drive, and a hybrid permanent-magnet
motor design. Its variable-speed
cooling system ensures consistent
discharge temperature and matches
energy consumption to thermal load.
Its ability to match output to demand
provides optimal operating efficiency.
The company says the model contains
the fewest components requiring servicing
of any existing compressor,
and has easily removable panels for
improved service access. - Ingersoll
Rand, Davidson, N.C.
www.ingersollrandproducts.com
Identify contamination areas
with this service
A compressed-air-quality test program
offered by this company can identify
contaminated areas within a compressed
air system that could affect
facility operations. The program will
analyze the quality of the compressed
air system, determine contaminant
levels at end-use points, and measure
moisture content of compressed air in
critical areas. The company also provides
a summary report of the findings.
The company says the testing
lower excessive
maintenance costs and make
product contamination and component
replacement less frequent. -
Parker Hannifin Corp., Filtration and
Separations Div., Haverhill, Mass.
www.balstonfilters.com
Detect compressor gas leaks
with ultrasound
The Observer Ultrasonic Gas Detector
responds to the airborne ultrasound
generated when high-pressure systems
release gas in open, well ventilated
areas. Based on microphone technology,
the detector provides a detection radius
of up to 20 m at a leak rate of 0.1 kg/s.
Because it is not based on concentration
of the leaked gas, it is unaffected
by changing wind directions, gas dilution
and leak direction. The detector
features the ability to self-test to verify
the integrity of electronic circuitry and
operation of the acoustic sensor. It is
especially suited for natural-gas compressor
stations. - General Monitors,
Lake Forest, Calif.
www.generalmonitors.com
Reduce energy in compressor
applications with this drive
The VLT Automation VT Drives
(photo) are specifically engineered to
reduce energy usage in compressor applications
requiring variable torque. A
combination of energy-optimizing features
can lower energy use in variable32
CHEMICAL ENGINEERING WWW.CHE.COM MARCH 2011
Danfoss
torque applications by 30%, the company
says. The drives are available in
sizes from 0.5 to 1,400 hp with a wide
range of enclosure options. - Danfoss
VLT Drives, Loves Park, Ill.
www.danfossdrives.com
Operate at cooler temperatures
with this compressor
The GS Series of variable-speed-drive
air compressors feature a unique cooling
system that improves cooling of
the main drive motor and other critical
components, allowing the compressors
to operate at lower temperatures
and achieve greater volumetric and
electrical efficiency. The lower operating
temperature allows the intake
of cooler, denser air, which increases
the compression efficiency as well.
The cooler airflow, along with heatsensitive
components provides up to
50% longer service life for motors and
electrical components, the company
says, and a 30-50% longer service
life for bearings, seals and hoses. -
FS-Curtis, St. Louis, Mo.
www.fscurtis.com
(Continues on p. 33)
Note: For more information, circle the 3-digit number
on p. 62, or use the website designation.
http://www.balstonfilters.com http://www.danfossdrives.com http://www.ingersollrandproducts.com http://www.generalmonitors.com http://www.fscurtis.com http://WWW.CHE.COM
Chemical Engineering March 2011

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