"will the pressure inside the cabin need to be vented in some way"
Yes Phillip, an enclosed dry ambient will need to provide for Boyles law and the subsequent expansion on ascent. If the rate of ascent / expansion exceeds the ability to vent, the weak point in the structure then becomes the weak link...most likely to fail first, tympanic membranes (eardrums) then...windows.
Clearly the control (buoyancy) profile of a dry ambient, needs to be on the money.
Joe
From: Philip Ridenauer <akula151@yahoo.com>
Reply-To: personal_submersibles@psubs.org
To: personal_submersibles@psubs.org
Subject: [PSUBS-MAILIST] internal pressure question
Date: Sat, 18 Mar 2006 16:35:51 -0800 (PST)
Hi All,I'm working on the design of a proof-of-concept vehicle to test the ballast system of an ambient dry sub. I've figuered out that on descent air from the ballast tanks have to be vented thru the cabin in order to keep the pressure equal with the outside. On ascent, once sufficient water has been expelled from the ballast tanks, will the pressure inside the cabin need to be vented in some way to prevent the sub from exploding as the surroundind water pressure lessens?Any thoughts or suggestions are appreciatedPhilip Ridenauer
Yahoo! Travel
Find great deals to the top 10 hottest destinations!