Computational Fluid Dynamics Modeling of Solar Thermal Dry Reforming of Methane in a Parabolic Trough




Dry Reforming, Methane, Parabolic Trough


Computational fluid dynamics simulations of solar-thermal dry reforming of methane using a parabolic trough configuration were performed. Parametric simulations of different combinations of gas flow rate, receiver tube emissivity, and geometric concentration ratio were conducted to determine configurations that could achieve the required catalyst temperatures of at least 700 °C to achieve high conversion of CH4 and CO2 to H2 and CO. Results showed that the concentration ratio of the parabolic trough collector had to be increased from ~70 to ~120 and the receiver-tube emissivity had to be reduced to ~0.2 to achieve bulk average catalyst temperatures of greater than 700 °C.  Lower gas flow rates also reduced enthalpic heat losses and increased catalyst temperatures.


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United States Department of Energy, 2019, Natural Gas Flaring and Venting: State and Federal Regulatory Overview, Trends, and Impacts, Office of Oil and Natural Gas, Office of Fossil Energy, Washington, D.C.

Schulz, R., C. McGlade, and P. Zeniewski, 2021, Flaring Emissions, International Energy Agency,

Umukoro, G.E. and O.S. Ismail, Modelling emissions from natural gas flaring. Journal of King Saud University - Engineering Sciences, 2017. 29(2): p. 178-182.

Agrafiotis, C., et al., Solar thermal reforming of methane feedstocks for hydrogen and syngas production—A review. Renewable and Sustainable Energy Reviews, 2014. 29: p. 656-682.

Said, S.A.M., M. Waseeuddin, and D.S.A. Simakov, A review on solar reforming systems. Renewable and Sustainable Energy Reviews, 2016. 59: p. 149-159.

Zhao, Q., et al., Mid/low-temperature solar hydrogen generation via dry reforming of methane enhanced in a membrane reactor. Energy Conversion and Management, 2021. 240: p. 114254.

Dassault Systems, 2019, Technical Reference Solidworks Flow Simulation 2019,

Ho, C.K. and W. Gerstle, Terrestrial Heat Repository for Months of Storage (THERMS): A Novel Radial Thermocline System, in ASME ES 2021 15th International Conference on Energy Sustainability2021: Virtual

Wu, C.C. and G.J. Hwang, Flow and heat transfer characteristics inside packed and fluidized beds. Journal of Heat Transfer-Transactions of the ASME, 1998. 120(3): p. 667-673.

Christian, J.M. and C.K. Ho, Finite Element Modeling and Ray Tracing of Parabolic Trough Collectors for Evaluation of Optical Intercept Factors with Gravity Loading. Proceedings of the ASME 5th International Conference on Energy Sustainability 2011, Pts a-C, 2012: p. 577-585.




How to Cite

Ho, C., & Riley, C. R. (2024). Computational Fluid Dynamics Modeling of Solar Thermal Dry Reforming of Methane in a Parabolic Trough. SolarPACES Conference Proceedings, 1.

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