Jing Gong

Chapter 175 – The experimental study on the performance of a small-scale oxygen concentrator by psa

Publisher Summary This chapter analyzes an experimental study on the performance of a small-scale oxygen concentrator by pressure swing adsorption (PSA). A small-scale adjustable rich oxygen concentrator by PSA is designed and manufactured to study influences of nozzle size, purge quantity on characteristics of the production oxygen, such as its pressure, purity and volume flux. The purity of oxygen produced by this device could reach above 90% and up to 96% in volume. The flux of rich oxygen product could be adjusted intelligently in the range of 0.51/min–3.51/min. It is found that the small-scale concentrator could operate in optimum performance, with the purity of oxygen being above 90%. The relationship between the HPAP and the Qe is a typical curve of Langmuir. The optimal operating pressure of the experiment device is 0.18Mpa to 0.2MPa. The ratio of the purge quantity Qp to the flow of the product oxygen Qo is maintained above 2.5. The smaller the nozzle diameter, the higher the HPAP. The optimal nozzle diameter is from 0.8mm to 1.2mm while the adsorption time is 10 seconds. The highest purity of the production oxygen is about 96% in volume by using this small-scale concentrator while the flow of the production oxygen is of 2.0l/min. The small-scale concentrator is quite suitable for hospital, domestic usage, and oxygen bar. The device is quite usable in hospital, domestic application, oxygen bar and other places in shortage of oxygen. It would have great economic benefit in the future.