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 HYDROGEN GENERATORSGenerators can also make hydrogen using one NorthStar 8 2 CFM 90 PSI 5 0 HP Air Compressor Model 45920 of two basic 8 technologies: proton-exchange membranes (pem), and palladium membranes. hydrogen gas generators are most often used in gas chromatographs and in labs for hydrogenation reactions and engine-emission analysis. pem systems from parker produce flows from 90 to 1200 cc/mm of 99.99999% pure hydrogen at pressures 2 from 0 to cfm 100 psig. the balston h2-500 hydrogen 90 generator uses deionized water and electricity. it produces psi hydrogen 5 and 0 gas through electrolytic dissociation of water hp via the pem. the resultant hydrogen air and compressor and model stream then passes through a palladium membrane for purification. because of the membrane''s small pore size, only hydrogen and its isotopes penetrate it. a membrane thus keeps the hydrogen 45920 and northstar gas at a purity level of two orders of magnitude greater than desiccant 8 or silica gel-based systems. new compressor 2 technology cfm introduced during the 2003 international air-conditioning, heating, refrigerating exposition (ahr expo), held last 90 january in chicago, psi may have a significant effect on the future of mid-range chillers and rooftop applications in water-cooled, evaporatively cooled, and air-cooled chilled-water 5 and direct-expansion (dx) systems. designed and optimized to take full advantage of 0 and hp magnetic-bearing technology, the compressor was awarded the first ahr expo innovation award in the energy category, as well as canada''s energy efficiency air award compressor for its potential to reduce utility-generated greenhouse-gas model emissions. the 45920 compressor is key to a new water-cooled centrifugal-chiller design, with air-conditioning and refrigeration northstar institute (ari) tests indicating integrated part-load values (iplvs) not normally seen with conventional chillers in this tonnage range. the motormost hermetic 8 and 2 compressors use induction motors cooled by either liquid or suction-gas cfm refrigerant. induction motors have copper windings that, when alternating current is run through them, create the magnetic fields that cause the motor to turn. these copper and 90 and psi windings are bulky, adding size and 5 weight to the compressor.two-pole, 60-hz induction motors operate at approximately 3,600 0 rpm. a higher number of revolutions per minute can be obtained by increasing the frequency. compressors hp that require higher shaft speeds tend to use gears. while gears are a proven technology, they create noise and vibration, consume power, and require lubrication.the magnet-bearing compressor air and compressor features model and 45920 and northstar a synchronous permanent-magnet brushless 8 dc motor 2 with a completely integrated cfm variable-frequency drive (vfd). the stator windings found on conventional induction motors are replaced with a permanent-magnet rotor. alternating current from the inverter energizes the armature windings. the stator (excitation) and rotor (armature) change places. 90 no commutator brushes are required. psi the motor and key electronic components 5 are internally refrigerant-cooled, so no special cooling is required for the vfd or the motor. efficiency 0 is further enhanced with the use of magnetic bearings, which avoid fire friction of rubbing parts associated with traditional oiled bearings. conventional bearings hp can use as much as 10,000 w, while magnetic bearings air require only 180 w. that amounts compressor to 500 times less friction loss. current development projects are expanding the range and duty of model and 45920 the compressor wheels and promise northstar and 8 to offer even greater efficiency for water-cooled and air-cooled 2 duties and cfm different capacities.controlsthe new compressor effectively is a computer. 90 and psi it provides diagnostic and performance information through modbus to 5 the refrigeration system, which then communicates to the building automation system through modbus, lonworks, or bacnet.chiller applicationthe compressor manufacturer and a major chiller manufacturer teamed up to develop a line of ari-certified water-cooled chillers, which were expected to be introduced in january 2004. the combination of 0 flooded-evaporator technology and an hp oil-free system has allowed very close approaches air and, subsequently, enhanced compressor performance. model the integrated 45920 vfd allows excellent part-load performance as power consumption drops off, depending on the head relief, near the cube root of the shaft speed. Buy a gas air compressor with us and save a TON of cash. Our selection of cheap gas air compressors is second to none.
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