암모니아 공급 고체산화물 연료전지의 1D 반응 모델 = 1D Kinetics Model of NH3-Fed Solid Oxide Fuel Cell

다국어 초록 (Multilingual Abstract)

Cracking ammonia inside solid oxide fuel cell (SOFC) stack is a compact and simple way. To prevent sharp temperature fluctuation and increase cell efficiency, the decomposition reaction should be spread on whole cell area. This leading to a question that, how does anode thickness affect the conversion rate of ammonia and the cell voltage? Since the 0D model of SOFC is useful for system level simulation, how accurate is it to use equilibrium solver for internal ammonia cracking reaction? The 1D model of ammonia fed SOFC was used to simulate the diffusion and reaction of ammonia inside the anode electrode, then the partial pressure of hydrogen and steam at triple phase boundary was used for cell voltage calculation. The result shows that, the ammonia conversion rate increases and reaches saturated value as anode thickness increase, and the saturated thickness is bigger for lower operating temperature. The similar cell voltage between 1D and 0D models can be reached with NH3 conversion rate above 90%. The 0D model and 1D model of SOFC showed similar conversion rate at temperature over 750℃.

참고문헌 (Reference)

1 M.E.E. Abashar, "Ultra-clean hydrogen production by ammonia decomposition" Elsevier BV 30 (30): 2-11, 2018

2 Seyedehhoma Ghavam, "Sustainable Ammonia Production Processes" Frontiers Media SA 9 : 2021

3 G. Cinti, "SOFC operating with ammonia: Stack test and system analysis" Elsevier BV 41 (41): 13583-13590, 2016

4 Thai-Quyen Quach ; Van-Tien Giap ; Dong Keun Lee ; Israel Torres Pineda ; Kook Young Ahn, "Parametric study of a high-performance ammonia-fed SOFC standalone system" 대한기계학회 36 (36): 3193-3201, 2022

5 Ethan S. Hecht, "Methane reforming kinetics within a Ni–YSZ SOFC anode support" Elsevier BV 295 (295): 40-51, 2005

6 M.V. Lototskyy, "Metal hydride hydrogen compressors: A review" Elsevier BV 39 (39): 5818-5851, 2014

7 S. Ahmad Hajimolana, "Mathematical modeling of solid oxide fuel cells: A review" Elsevier BV 15 (15): 1893-1917, 2011

8 Ju-Sung Lee, "Large-scale overseas transportation of hydrogen: Comparative techno-economic and environmental investigation" Elsevier BV 165 : 112556-, 2022

9 Air Liquide S.A., "How hydrogen empowers the energy transition"

10 IRENA, "Energy transition 2020" IRENA

11 IEA, "Ammonia technology roadmap" IEA

12 N.A.A. Rusman, "A review on the current progress of metal hydrides material for solid-state hydrogen storage applications" Elsevier BV 41 (41): 12108-12126, 2016