The experimental study of a new pressure equalization step in the pressure swing adsorption cycle of a portable oxygen concentrator

Article type: Research Article

Authors: Li, Jianhua^;

Affiliations: Department of Science Research and Development, Chinese People's Armed Police Force Academy, Langfang, China

Note: [] Address for correspondence: Jianhua Li, Department of Science Research and Development, Chinese People's Armed Police Force Academy, Langfang 065000, Hebei Province, China. Tel.: +86 316 2067618; Fax: +86 316 2067613; E-mail: ljhwjxy@163.com

Abstract: For portable oxygen concentrator by pressure swing adsorption (PSA) method, its volume, mass, power, oxygen flux and oxygen saving efficiency are the most important parameters which are affected strongly by the PSA cycle. In this paper, we propose a new pressure equalization step to optimize the PSA cycle. According to the experimental results, when the product ends of two beds are connected and the feed gas is switched from the high pressure bed to the low pressure bed during the pressure equalization step, the system has a larger oxygen flux, a less energy consumption and a more simple structure.

Keywords: Cycle, operation pressure, portable oxygen concentrator, pressure swing adsorption

DOI: 10.3233/BME-140988

Journal: Bio-Medical Materials and Engineering, vol. 24, no. 5, pp. 1771-1779, 2014