Author(s)

R. Kios, A. Majchrzycka & R.Olszariski

Abstract

The paper discusses preparation of breathing mixtures used in deep diving operations. The mathematical models describing of preparation compressed gas mixtures by the pressure transfer are reported on. A special computational protocol for preparation of helium - oxygen ( HELIOX ) mixture under isothermal conditons is presented. Problems of diving gas analysis and contaminant contents are reported. 1 Introduction The deep diving operations require selection of an optimal breathing mixture for each of the actual operational situations. Oxygen is the major gas because is necessary for maintaining the diver's metabolism. Oxygen partial pressure is maintained at the proper level with the depth of diving by incre

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