Can anyone tell me if it is right to say that maximum power of a hydrogen oxygen fuel cell varies directly (with constant efficiency) with gas flow rate at constant pressure at room temperature
Yeah.
Well, can anyone tell me if it is right to say that maximum power of a hydrogen oxygen fuel cell varies directly (with constant efficiency) with gas flow rate at constant pressure at room temperature
It's a PEM fuel cell, 30% platinum carbon electrode, nafion as membrane. and i have been given a voltage current density curve for gas flows of oxygen 0.06SLPM 1.2 bar pressure and hydrogen 0.04 SLPM, 1.0 bar pressure which shows max. current at voltage 0.93V (which is the max. voltage), 0.5A...
Cesium:
If the maximum number of gas produced per second depends on the size of the electrodes then I assume the larger the electrode size, the lower the resistance and hence with a battery of emf equal to the voltage you adviced, the current should be maximum and hence the amount of gas...
If i use 1 molar sulphuric acid at rtp what voltage do you think i should use? 1.5V will be good?
Also, how can i keep the concentration of the acid constant?
If i use 1 molar sulphuric acid at rtp what voltage do you think i should use? 1.5V will be good?
Gokul43201 : I have not yet reached that chapter at school, and I desperately need to finish a project before a given time, that's why i need help!
Cesium:
So you mean that I cannot just connect a battery to the electrolyser, I need to know the 'maximum' (well I think it can take any voltage lower than its maximum but beyond this maximum it starts producing heat. Just like your mobile phone which needs a charger and cannot be connected...
Hey ihave tried this question in Chemistry dep. but no one seems to be online!
Talking about electrolysis, what happens to the excess power input when gas production rate remains constant even though power is increased? Droplets of water settled at the top of my gas storage cylinder, does...
Talking about electrolysis, what happens to the excess power input when gas production rate remains constant even though power is increased? Droplets of water settled at the top of my gas storage cylinder, does this mean excess power is converted into heat which vaporises water in the electrolyte?
It is a hydrogen-oxygen fuel cell. I need to find its power rating. In this case we do not need to matter about the time it takes to give a maximum current as the flow rate of hydrogen and oxygen are constant and hence per second it does give a maximum current! So, can i measure the maximum...
Talking about electrolysis, what happens to the excess power input when gas production rate remains constant even though power is increased? Droplets of water settled at the top of my gas storage cylinder, does this mean excess power is converted into heat which vaporises water in the electrolyte?
What value do I get if i connect a battery with a voltmeter? What do i get with an ammeter? Can I find the power rating of the battery using P=IV for the values obtained?