Microbial Fuel Cells: Influence of External Resistors on Power, Current and Power Density

Citation:
Kamau JM, Mbui DN, Mwaniki JM, Mwaura FB. "Microbial Fuel Cells: Influence of External Resistors on Power, Current and Power Density." Journal of Thermodynamics & Catalysis. 2017;8(1):1-5.

Abstract:

The effect of external resistance on voltage, current, power, power density and current density is investigated in a microbial fuel cells using cowdung is investigated. This involves use of varying resistance resistors. The fuel cells were operated under anaerobic condition for 9 days. PVC pipe was used to make a salt bridge using lamp wicks and potassium chloride. The obtained results indicated that the maximum voltage was on day 7 with 0.153 V across 33 kΩ resistor. The power was in the range of 0.000001 to 0.01 mW, current density was in the 0.1 to 23.29 mA/m2
range while the power density was in 7.5 × 10-7 to 3.1036 mW/m2 range.

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