Numerical modeling of the explosive decompression process with MSOGS

A simple mathematical model about the dynamic variation of alveolar oxygen partial pressure during explosive decompression was established. With this model the process of alveolar oxygen pressure change during explosive decompression process is simulated with molecular sieve oxygen generating system (MSOGS). The effects of concentration of supplying oxygen and the flight altitude were analyzed. The predicting and experimental results are in good agreement. This model provides an easy approach to calculate the critical time for the explosive decompression process. It is helpful to design of life-support equipment and medical monitoring of high altitude flight.