I question the amount of nickel used. The one liter (1000 cc) Cat-E used 100 grams of catalyst. By proportion, a 50 cc volume should use only 5 grams of catalyst. The density of the catalyst is too high. It should be about 3g/cc since it is porous.
On Wed, Apr 20, 2011 at 5:33 AM, .:.gotjosh <ene...@begreen.nu> wrote: > I would love a copy of that doc... please do send one my way. > > i also made a calculation based on that line from the K&E report > - surprisingly i got zero comments - although i consider it a very relevant > issue... 25 atm at startup is much more at 500C... i would love it if > someone could double check these calculations and perhaps include them in > the details documents. > > using the estimate of 0.09 grams of hydrogen pressurized > into a 50cc chamber with > 5cc occupied by 50g of nickel (at 8.8g/cc) > and 45cc unoccupied (for the hydrogen to fill) > with a starting pressure of ~24atm at 20C > the pressure will grow to ~64atm at 500C > > atm deg K deg C > 24.22 293 20 > 25.87 313 40 > 27.53 333 60 > 29.18 353 80 > 30.83 373 100 > 34.97 423 150 > 39.10 473 200 > 43.23 523 250 > 47.36 573 300 > 55.63 673 400 > 63.90 773 500 > 72.16 873 600 > 80.43 973 700 > 105.23 1273 1000 > > (are my calculations correct ? - > > https://spreadsheets.google.com/pub?hl=en_GB&hl=en_GB&key=0Aj441n89_v_VdHhXMHZ6MmlRWlh0RVJKYVBwd3B4amc&output=html > ) > > > (note: K&E say 0.11g hydrogen but they are ignoring the space that the > nickel occupies - and the 50cc is an estimate anyway) > > On Wed, Apr 20, 2011 at 00:43, Jed Rothwell <jedrothw...@gmail.com> wrote: > >> Alan J Fletcher <a...@well.com> wrote: >> >>> >>> That's from the K&E report : >>> >> >> Thanks. >> >> - Jed >> >> >
