GEAR-SHAPED REACTOR FOR SOLAR PHOTOCATALYTIC DEGRADATION OF R134a AND ITS NUMERICAL SIMULATION ANALYSIS

Chen Wenjun; Yang Zhen; Duan Yuanyuan

doi:10.19912/j.0254-0096.tynxb.2025-0746

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Acta Energiae Solaris Sinica ›› 2026, Vol. 47 ›› Issue (9) : 1-9. DOI: 10.19912/j.0254-0096.tynxb.2025-0746

GEAR-SHAPED REACTOR FOR SOLAR PHOTOCATALYTIC DEGRADATION OF R134a AND ITS NUMERICAL SIMULATION ANALYSIS

Chen Wenjun^1,2, Yang Zhen^1,2, Duan Yuanyuan^1,2

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Abstract

A double-tube gear-shaped reactor for solar photocatalytic degradation of R134a was proposed to address the problems of low photon utilization rate and uneven irradiance distribution in the parabolic-trough concentrating reactor. The reaction and heat-transfer performance of the proposed variable-density and uniform-density gear-shaped reactors was analyzed numerically simulations. The research results show that when the influence of temperature is not considered, the proposed gear-shaped reactor can significantly increase the total reaction rate. When the influence of temperature is taken into account, the reaction-rate enhancement is somewhat reduced, but variable-density gear-shaped reactors with larger numbers of teeth remain effective in most cases. Variable-density gear-shaped reactors exhibit better reaction and heat-transfer performance than uniform-density gear-shaped reactors.

Key words

photocatalysis / computational fluid dynamics / numerical simulation / trough concentrator / reactor design / structure optimization

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Chen Wenjun, Yang Zhen, Duan Yuanyuan. GEAR-SHAPED REACTOR FOR SOLAR PHOTOCATALYTIC DEGRADATION OF R134a AND ITS NUMERICAL SIMULATION ANALYSIS[J]. Acta Energiae Solaris Sinica. 2026, 47(9): 1-9 https://doi.org/10.19912/j.0254-0096.tynxb.2025-0746

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