Accession Number : AD0654157
Title : ORIFICE SELECTION IN SEMI-CLOSED CIRCUIT MIXED GAS UNDERWATER BREATHING APPARATUS.
Descriptive Note : Research rept.,
Corporate Author : NAVY EXPERIMENTAL DIVING UNIT WASHINGTON D C
Personal Author(s) : Harter,J. V.
Report Date : 13 APR 1967
Pagination or Media Count : 31
Abstract : The report was prepared to support Man-in-the-Sea Operations wherein the gas flow requirements in semi-closed circuit breathing apparatus will vary over a wide range due to extension of diving depths in semi-closed circuit breathing apparatus to 600 feet of seawater. A graphical method of orifice selection is presented. Information for graph preparation was obtained through computer operations using standard compressible fluid flow formula for critical flow through an orifice. (Author)
Descriptors : (*BREATHING APPARATUS, *ORIFICES), UNDERWATER, SELECTION, GAS FLOW, MIXTURES, GRAPHICS, PRESSURE, DIVING, CONTROL SYSTEMS
Subject Categories : Life Support Systems
Distribution Statement : APPROVED FOR PUBLIC RELEASE