BLENDING RESPIRATORY GAS MIXTURES

Mircea degeratu[1], Sergiu Ioniță[2]

Rezumat. Amestecurile gazoase binare sau ternare utilizate în scufundare se pot fabrica fie printr-o injecţie succesivă şi controlată a gazelor componente în recipiente cu volum constant, urmărindu-se presiunea din recipienţi, fie printr-o amestecare în flux continuu, cu injectarea simultană a gazelor componente la proporţia dorită, utilizându-se pentru aceasta dispozitive prevăzute cu ajutaje calibrate lucrând în domeniul critic (sonic), ce asigură livrarea componentelor gazoase la debite masice constante.

Abstract. The binary or ternary gas mixtures used in diving can be blended either by a successive and controlled injection of the component gases into containers of constant volume, following the pressure in the containers, or by a continuous flow mixing, with the simultaneous injection of the component gases to the desired proportion, using for this devices equipped with calibrated nozzles working in the critical (sonic) range, which ensure the delivery of gaseous components at constant mass flow rates.

 

Keywords: diving, gases, respiratory mixtures

 

DOI          10.56082/annalsarscieng.2024.2.5

 

 

Abstract Article                                                                         Volume 16 No 2 – 2024                                



[1] Prof., PhD, Eng., Dept. of Hydraulics and Environmental Protection, Technical University of Civil Engineering Bucharest, Academy of Romanian Scientists (mircea.degeratu@yahoo.com)

[2] Professional diver, certified in the U.S.A. at Commercial Diving Institute of New York, was employeed by some prestigious submarine intervention companies specialized in underwater interventions at offshore oil installations in the Gulf of Mexico. (sergiu.ionita@rdslink.ro).