Comment Re:Inhales oxygen... exhales heat and water vapor? (Score 1) 238
OK, I got really bored and actually calculated out the amount of O2 this will eat in operation at full load.
The website says it will eat 200 cu ft of H2(@ 1/2 load) in 11.5 hours. Since it's a fuel cell, it will eat half that amount of oxygen (2 hydrogens to every oxygen in water). Then we multiply by 28000 cc per cubic foot, and divide by 60 to get it in ccs per minute. Then we compare that to how much a human being consumes (according to http://www.mindpub.com/art197.htm). I assume a 70 kilo person breathes 1400 ccs of O2 per minute.
This device will breathe ~4057 ccs of O2 per minute, or almost 3 80 kilo(175 pound) people worth. Not too insane, but perhaps a bit much in a small cramped room with poor ventilation.
The website says it will eat 200 cu ft of H2(@ 1/2 load) in 11.5 hours. Since it's a fuel cell, it will eat half that amount of oxygen (2 hydrogens to every oxygen in water). Then we multiply by 28000 cc per cubic foot, and divide by 60 to get it in ccs per minute. Then we compare that to how much a human being consumes (according to http://www.mindpub.com/art197.htm). I assume a 70 kilo person breathes 1400 ccs of O2 per minute.
This device will breathe ~4057 ccs of O2 per minute, or almost 3 80 kilo(175 pound) people worth. Not too insane, but perhaps a bit much in a small cramped room with poor ventilation.
