I have a 1 KW output power of a hydrogen fuel cell which has 40% efficiency . Now I want to go backwards and calculate how much would be the flow rate of Hydrogen required for this fuel cell , how do I do this ?
Well you would have to figure out how much input power you would need by dividing the output by the efficiency. If you get something different than 2.5 KW, you are doing it wrong. They you need to figure out how much hydrogen you need to produce 2.5 KW.
