[time-nuts] Man killed in quartz crystal accident
DaveH
info at blackmountainforge.com
Mon Nov 25 02:43:45 EST 2013
And chemically analyze the wash water at the end of the test. The tank was
heated with electrical heaters so they could have run it up to 300°F and
maybe 2,000 PSI and let it sit for a month - easy-peasy.
Their operation used 4% lye with 96% water so this would not have been out
of normal operating window.
The management was counting on the layer of Acmite (sodium iron silicate) to
provide a barrier between the guts and the pressure vessel.
I am betting that they would have found iron rust components in the cleaning
water. A simple test for iron oxide would have revealed a breach.
This is not time-nuts stuff but it is major engineering management and
record-keeping stuff which is also germaine to accurate time keeping...
Dave
> -----Original Message-----
> From: time-nuts-bounces at febo.com
> [mailto:time-nuts-bounces at febo.com] On Behalf Of Brooke Clarke
> Sent: Sunday, November 24, 2013 22:49
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Man killed in quartz crystal accident
>
> Hi:
>
> Just North of me there's a museum that has working live steam
> boilers and many engines.
> Every year they pressure test everything carrying steam prior
> to the annual steam up.
> The test is simply to fill the boiler (or other equipment)
> with water in such a way that there is no trapped air and
> then pressurize the system to say 2X or 3X the operating pressure.
> If there's a weak spot as soon as it starts to move the
> pressure drops very quickly since water does not compress and so
> there's minimal danger.
> I don't see why they could not do room temperature pressure
> test using water prior to every run?
>
> Have Fun,
>
> Brooke Clarke
> http://www.PRC68.com
> http://www.end2partygovernment.com/2012Issues.html
>
>
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