WIT Press


The Influence Of Oxygen-helium Mixture Properties On The Human Heat Loss In The Hyperbaric Environment

Price

Free (open access)

Paper DOI

10.2495/MT030291

Volume

68

Pages

10

Published

2003

Size

565.81 kb

Author(s)

A. Majchrzycka

Abstract

The influence of oxygen-helium mixture properties on the human heat loss in the hyperbaric environment A. Majchrzycka Technical University of Szczecin, The Faculty of Mechanical Engineering, Poland Abstract The properties of gas mixture exert a large effect on thermal exchange from the human body and finally on the comfort temperature in the hyperbaric environment. Equations describing density, viscosity, specific heat capacity, thermal conductivity of real gas mixture as the function of helium contents, temperature and the total gas pressure were derived. It makes possible to improve the comfort equation and finally to determine the comfort temperature and heat losses from the human body more precisely. 1 Introduction The saturation diving theoretically enables the divers to stay on the bottom for a long time but requires the hyperbaric complexes where the divers live at the pressure equal to the ambient pressure existing at their work site. The divers are prepared for diving in the hyperba

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