ORIFICE SELECTION IN SEMI-CLOSED CIRCUIT MIXED GAS UNDERWATER BREATHING APPARATUS.

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)

Document Details

Document Type
Technical Report
Publication Date
Apr 13, 1967
Accession Number
AD0654157

Entities

People

  • J. V. Harter

Organizations

  • United States Navy Experimental Diving Unit

Tags

DTIC Thesaurus Topics

  • Breathing Apparatus
  • Computers
  • Diving
  • Flow
  • Fluid Flow
  • Gas Flow
  • Respiration
  • Standards
  • Underwater Breathing Apparatus

Readers

  • Combustion and Flow Dynamics.
  • Materials Science