Chuck asks:

> I am trying to find information on the Heat Dissipation for a Model 10 disk
>  array, specificly the maximum load BTU's.
>
>  Unfortunately, HP's web site is once again giving errors when I try and
>  access any links returned by my searches and my printed documentation has
>  gone walkabout. Does anyone have a manual handy that has this information?

You don't need to reference an HP site for this information. It's available
on the nameplate on the back of your device. BTU's are a unit of work (or
energy or heat; the concepts are all equivalent). Kilowatts are a unit of
power (work expended per unit time), thus kilowatt-hours (units appropriate
for the time integral of power) are equivalent to BTU's.

If we presume that all of the electrical energy flowing into an electrical
device is dissipated as heat (which is not only a good first-order
approximation, it's also the most conservative estimate), then the formula of
interest is:

     1 kilowatt-hour = 3413 BTU's

That is, a 100W (or 100VA) device will emit at maximum 3,413 BTU's in one
hour. HP however is conservative in its estimates of power draws, so the real
number will probably lie somewhere between 50 and 70% of such a number
calculated off of the nameplate.

Wirt Atmar

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