142 Note Parker membrane systems produce both nitrogen and oxygen enriched air. Nitrogen enriched air can cause suffocation and oxygen enriched air causes increased fire hazards. The oxygen enriched air is available at ambient pressure and pressure build-up of enriched oxygen at the outlet must be prevented, otherwise a serious (reversible) decrease in performance will result. The nitrogen enriched air produced should be treated as pressurised air. Performance data Performance data is based on 20°C feed-air temperature and 1013 mbar ambient pressure Industrial Nitrogen Gas Generation - Membrane Modules www.parker.com/gsfe HiFluxx ST15020-1 - Part Number: 159.003846 Purity %1 Typical nitrogen flow rate in m3/hr2 99 98 97 96 95 4 bar g 24.0 39.0 53.0 71.0 89.0 5 bar g 35.0 58.0 78.0 105 131 6 bar g 46.0 75.0 103 137 171 7 bar g 54.0 89.0 121 161 201 8 bar g 59.0 97.0 133 177 221 Purity % Feed-air consumption at typical nitrogen flow rate in m3/hr2 99 98 97 96 95 4 bar g 161 175 191 220 239 5 bar g 238 259 283 324 353 6 bar g 289 324 359 411 445 7 bar g 340 381 423 483 523 8 bar g 374 419 465 531 576 Above tables reflect nominal flow rates. The nitrogen output of each individual module can vary +/- 15%. For selection purposes, calculation should be done based on nominal conditions without taking the variation into account. When ordering modules, it is necessary that the total modules needed for each individual project are clearly mentioned per order-line on the order-intake-form. Parker will assure that the total output flow rate (sum of the individual selected membranes flow rates) will be minimum the total nominal flow rate. The compressor selection can be done on the total calculated nominal flow rate without taking any variation into account. Ambient Conditions Ambient tempera ture +2°C to +50°C Ambient pressure atmospheric Air quality clean air without contaminants Flow Rate Corrections Nitrogen flow rate at feed temperatures other than 20ºC See page 150 Feed-air consumption at feed-air temperatures other than 20ºC See page 150 Membrane operating limits are lower. Mechanical Design Housing Design pressure 14 bar g Design temperature 65ºC Feed-air Conditions Maximum operating pressure 9.0 bar g Min. / Max. operating temperature +2°C / +50°C Maximum oil vapour content <0.01 mg/m3 Particles filtered at 0.01 µm cut off Relative humidity <100% (non condensing) Material Housing Aluminum Services on Request 3D model CAD STEP file Weight, Dimensions and Connections Dimensions H x Ø D 1740 x 280 mm Weight 46 kg Connection inlet / outlet G21 female Vent 100 mm OD Dimensional drawing K3.1.339* Example: Your project requires 1515 Nm3/hr nitrogen at 8 bar g inlet pressure, 95% purity and 20°C inlet temperature. You will need 7 modules. Parker will ensure a minimum total product flow of 1515 Nm3/hr. However, individual module performance can still vary +/-15%. The compressor should be selected on a total air consumption of 7 x 576 = 4032 Nm3/hr. Maximum pressure drop < 0.3 bar. H ØD 1) Parker membranes separate oxygen from pressurised air. The composition of the product is determined by measuring the residual oxygen content. The nitrogen content is calculated by subtracting the residual oxygen content from 100%. Air is composed of nitrogen (78.1%), oxygen (20.9%), Argon (0.9%), CO2 (0.03%), and some trace inert gases. Therefore it should be born in mind that the value that is normally called the nitrogen content actually is the inert gas content. 2) m3/hr refers to conditions at 1013 mbar(a) and 20°C.
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