On Wed, Jan 25, 2012 at 9:13 AM, Jones Beene <jone...@pacbell.net> wrote: > Can you provide a citation for that first quote from DGT ?
http://defkalion-energy.com/forum/viewtopic.php?f=19&t=773 Re: dumping 350 degree hydrogen Defkalion GT Posted: Mon Dec 19, 2011 9:33 pm Joined: Fri Jun 24, 2011 6:56 am Posts: 418 Depressurizing Hydrogen for safety/emergency reasons was a problem that we had to deal with during design of our products, following also the official recommendations and regulations on hydrogen handling (please see specs "Environmental and Safety", p19). According to them, degas to the environment is not permitted. Following our design, it is not needed. As you can notice in the released spec sheet, there is plenty of space in the filled with Argon tamper resistant compartment A of Hyperions. This is the area where degas procedure sends the Hydrogen in case of emergency through the exhaust valves. Casing specs, which we have not released in details, can "hold" the maximum internal pressure from such degassing. As it is proved during our internal safety/stress tests, the limited amount of very hot hydrogen in such Argon atmosphere creates no safety problems to the product nor its environment. We consider such emergency "hydrogen evacuation" as a result of the malfunction of several other safety systems related with the hydrogen circuit. As such, in the case of degas (Hydrogen in the Argon atmosphere), Hyperion will shut down, will turn to stand by mode and automatically will send an alarm message to Hyperion Support Center triggering a replacement and repair procedure for the product. Thank you for this good question <end>
