Date of Publication

1-2025

Document Type

Master's Thesis

Degree Name

Bachelor of Science in Chemical Engineering (Honors) - Ladderized

Subject Categories

Chemical Engineering

College

Gokongwei College of Engineering

Department/Unit

Chemical Engineering

Thesis Advisor

Joseph R. Ortenero, PhD

Defense Panel Chair

Luis F. Razon, PhD

Defense Panel Member

Raymond R. Tan, PhD
Lawrence P. Belo, PhD

Abstract (English)

An electrochemical and transport model for the cathode and anode of a fluidized bed molten carbonate direct carbon fuel cell (FB-MC-DCFC) is developed through evaluating the polarization losses. The study expounds on recent developments in DCFCs by considering the effect of CO produced by the reverse Boudouard reaction on the anode activation, ohmic, and concentration overpotentials. When operated at 923 K and with a superficial O2/CO2 velocity of 0.0709 m/s, the peak power density is 291.039 W/m2. The greatest polarization losses are from ohmic overpotential and anode activation overpotential. Increasing the reaction temperature results in a decrease in ohmic overpotential and a greater decrease in anode activation overpotential, despite the increase in CO formation from the reverse Boudouard reaction. Decreasing the gas flow rate results in a smaller decrease in ohmic and concentration overpotential. When the operating temperature is raised to 1,023 K, the power density increases to 449.931 W/m2, while when the gas flow rate is lowered to 0.0109 m/s, the power density increases to 382.678 W/m2. The inclusion of CO in the calculations caused a decrease in the modeled activation overpotential and an increase in the modeled ohmic overpotential, which agree well with experimental data from literature.

Abstract Format

html

Abstract (Filipino)

None

Abstract Format

html

Language

English

Format

Electronic

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Embargo Period

1-2026

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