Compressed air stored at ambient temperature is used as part of a cooling system. A nozzle, with an exit area of $29$ mm$22$ delivers the air. Air is to be delivered into a change with ambient pressure of $1020$ mbar. For adequate coooling the air needs to be delivered at $-18$ oC and $9\mathrm{.}1$ g$/$s$.$

Determine what the bottle pressure should be$,$ to $2$ decimal places, in bar.