The first deep rebreather dive using hydrogen: a gateway to deep exploration?

Richard Harris und Simon Mitchell lassen es knallen und zeigen wie es weitergehen könnte.

Hier noch ein Artikel über das Thema:

Also ich finde, der Artikel ist sehr lesenswert. Hier ein kurzer Auszug:

On dive day, Harris and Challen set out on what would be a 13 hour dive to 230 meters/754 feet - a “comfortable depth,” as Harris put it. Due to some problems during the expedition, it was decided that Harry would dive hydrogen, while Craig would dive trimix. At 200 meters/656 feet depth, Harris pivoted the switch block to introduce hydrogen into the loop. “The first cautious sip of hydrogen just to activate the ADV was satisfying,” he said. Gas density was not subjectively improved, but Harris noticed an obvious benefit - the HPNS-induced hand tremors he typically experienced after 180 meters/590 feet disappeared. Harris kept his setpoint at .7 during the descent and working portion of the dive, careful not to reach a fraction of oxygen above 4% which would make the mix explosive, and proceeded to the 230-meter test depth.

After completing their time at 230 meters, the team began their ascent. Harry shut off the hydrogen feed to the active loop of his dual Megalodon rebreather back at 200 meters, and then conducted a diluent flush every 10 meters/33 feet to remove the hydrogen from the loop until reaching 150 meters/492 feet. At that point, Harris boosted his PO2 to 1.3 from his set point of 0.7 (Challen remained at 1.3 throughout the dive), and they continued their ascent decompressing on a trimix (O2, He, N2) schedule, treating hydrogen as if it were helium.

Ne iss klar. :stuck_out_tongue: Dabei wirkte der Harris in der Doku über den Vorfall mit der Kinderfußballmannschaft in der Thailändischen Höhle als der Vernünftigste dieser Truppe. :wink:

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Bin dann mal auf die angekündigte Publikation gespannt.