The history and implications of design standards for underwater breathing apparatus - 1945 to 2015

Rubicon Research Repository/Manakin Repository

The history and implications of design standards for underwater breathing apparatus - 1945 to 2015

Show full item record


Title: The history and implications of design standards for underwater breathing apparatus - 1945 to 2015
Author: Clarke, JR
Abstract: NEDU performance goals based on flow rate have served the Navy well for decades. Nevertheless, gas density is a major determinant of respiratory loading using both simple models of fluid mechanics and experimental evidence. An understanding of the influence of both respiratory ventilatory rates {flow} and density are vital to understanding the complete performance characteristics of UBA, and the probable tolerance of a diver to those influences. The constant impedance approach for determining acceptable pressure drops across UBA is a mechanism for combining the best of previous standards for UBA into a unified concept that takes into account engineering requirements, psychophysics, and respiratory physiology, including the fluid dynamics of flow in divers' airways. It allows testing laboratories to make maximum use of all of their testing data, and lo present that data in an easily interpretable two or three dimensional format.
Description: Citation Status: Active; Citation Classification: Unclassified; Title Classification: Unclassified; Report Classification: Unclassified; Identifier Classification: Unclassified; Abstract Classification: Unclassified; Distribution Limitation(s): 01 - APPROVED FOR PUBLIC RELEASE; Information provided by the Department of Defense and the Defense Technical Information Center (http://www.dtic.mil/) is considered public information and may be distributed or copied unless otherwise specified. Use of appropriate byline/photo/image credits is requested.
URI: http://archive.rubicon-foundation.org/10489
Date: 2015

Files in this item

Files Size Format View
NEDU_TR-15-03.pdf 2.387Mb PDF View/Open

This item appears in the following Collection(s)

Show full item record

Browse

My Account