Comparison of the electrochemical performances of MCDCFC using hand and ball milled biomass carbon fuels

Adeniyi, Olalekan D. and Adeniyi, Mary I. and Olutoye, Moses A. and Ewan, Bruce C. R. and Okafor, Joseph O. and Afolabi, Eyitayo A. and Ayoola, A. A. and Ojewumi, M. E. and Omoleye, James (2015) Comparison of the electrochemical performances of MCDCFC using hand and ball milled biomass carbon fuels. ResearchGate .

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Abstract

The electrochemical performances of a single cell molten carbonate electrolyte direct carbon fuel cell (MCDCFC) using miscanthus and switchgrass biomass carbon fuels subjected to hand and ball milling treatments are presented in this paper. Conventional direct carbon fuel cell (DCFC) uses carbon derived from coal, a fossil fuel with adverse consequences on the environment. This paper explores a more benign carbon fuel source which is the biomass to power the DCFC. The performances of the hand milled (HM) carbon fuels were slightly higher than those of the ball milled (BM) carbon fuels. At 800oC for the open circuit voltage, miscanthus fuel (1.03 V) has higher values for the HM and switchgrass fuel (0.77 V) for the BM. Higher peak power densities were observed for switchgrass fuel (21.60 and 12.32 mW/cm2) for both the HM and BM. Switchgrass fuel (74 mA/cm2) gave the maximum current density for both the HM and BM. Miscanthus fuel (0.72 V) show higher voltage at peak power generation for the HM and switchgrass fuel (0.39 V) for the BM. The peak power efficiency evaluated show that miscanthus fuel (70%) gave higher values for the hand milled and equal values for both carbon fuels (51%) for the ball milled.

Item Type:	Article
Subjects:	T Technology > TP Chemical technology
Divisions:	Faculty of Engineering, Science and Mathematics > School of Engineering Sciences
Depositing User:	Mrs Patricia Nwokealisi
Date Deposited:	28 Aug 2017 14:32
Last Modified:	28 Aug 2017 14:32
URI:	http://eprints.covenantuniversity.edu.ng/id/eprint/8943

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