Table 5. Power Density at Optimum Conditions for C = 2 g/L.

type of electrode	experiment conditions	I, mA/m2	P, mW/m2
Ni	T = 30 °C	28.1	361.2
	T = 30 °C, air pumping	75	1597.5
	T = 30 °C, air pumping, N = 600 rpm	68.8	2263.5
SS	T = 30 °C	12.5	103.8
	T = 30 °C, air pumping	35.0	514.5
graphite	T = 30 °C	11.3	93.5
	T = 30 °C, air pumping	50.0	1153