High-Efficiency Oxygen Production Through Autotuned Pressure Swing Adsorption Technology

In the post-COVID-19 era, both the medical profession and many hospitals and home patients still need high-purity oxygen to facilitate the natural healing processes. Providing pure oxygen continues to be a major difficulty, especially in distant locations or for patients who receive treatment at home. Oxygen concentrators offer a pragmatic solution to this problem by providing an effective and economical method of supplying oxygen. Nevertheless, the uninterrupted functioning of these devices might result in problems such as fluctuations in air moisture and excessive heat generation in the air compressor, which detrimentally impact the efficacy of the Pressure Swing Adsorption (PSA) cycles in isolating nitrogen from the surrounding air. The main objective of this project is to construct a basic 4-cycle PSA oxygen separator capable of delivering an analytical output oxygen concentrator. This concentrator has a capacity to automatically adjust to varying input values to consistently maintain oxygen purity levels above 95%. Our study shows that using the proposed autotuned system can improve the performance of the PSA cycle, leading to a peak oxygen purity of 95.6% within an average cycle time of approximately 10 minutes. Furthermore, in the event of variations in the natural air's oxygen concentration, which can range from 20% to 70%, the system could rapidly restore the oxygen concentration to 95.6% within a period of 3 minutes.