Brian:
Folks at the Cape once told me it takes 2x the volume of the tank to fill a
large ambient aluminum tank with Lox; basically, one tank volume is
required to cool it.
Given your material and insulation I concur that a spreadsheet model is
appropriate but that model should not come in with anything above a 2x
result, given the above.
Bill
On Saturday, September 10, 2016, Brian Feeney <alaiadesign@xxxxxxxxx> wrote:
Can anyone provide some comments, experience on the boil off losses when
filling an ambient temperature LOX tank for the first time prior to flight,
and then say refilling within a few hours - say 3 hrs - with little LOX
remaining for a re-flight, maybe no residual LOX in the tank.
Tank conditions - about 10 m3 volume, insulated for flight with 1 to 2
inches of material X (not specified yet), say ambient temperature is a
beautiful day in Mojave Cal. :)
I know LH2 is beyond the scope of the list but if anyone can comment re
the same conditions above on the losses at fill and refill, that would be
appreciated.
Thank you!
Cheers
Brian Feeney
