Accession Number:

AD0415713

Title:

WATER GAIN BEHAVIOR OF OUTDOOR CLOSED STRUCTURES

Descriptive Note:

Corporate Author:

AMERICAN SCIENTIFIC CORP ALEXANDRIA VA

Personal Author(s):

Report Date:

1963-02-01

Pagination or Media Count:

89.0

Abstract:

A model of the water gain of empty structures stored in the open is derived. Using this model and a modified Monte Carlo procedure, a statistical analysis is made of probable water gains at 12 stations by enclosures which are free breathing and which have check valves set at 2 -1, 1 -1, 1 -12 and 1 2 -12 psig. It is concluded that a breather charge of one ounce per cubic foot should give about six months storage life anywhere in the world, assuming adequate container drawdown. Even the 12 -12 psig valve required no additional desiccant although it might be expected to breathe as much as 38 times per year at Los Vegas, Nevada with 2 sigma confidence. The least pressure-vacuum spread which will not adversely affect a reasonable storage life was not discovered.

Subject Categories:

  • Containers and Packaging
  • Pumps, Filters, Pipes, Tubing, Fittings and Valves
  • Logistics, Military Facilities and Supplies

Distribution Statement:

APPROVED FOR PUBLIC RELEASE