Abstract
Examples of the use of additive manufacturing and rapid prototyping in a range of applications are of great interest in order to emphasize their role in development and production technology. In this study, a catalytic low temperature burner for H2 on a lab scale with an integrated flow distributor was designed, manufactured, and tested for functionality. Based on a theoretical approach, a flow distributor for the burner was designed and a prototype was built using fused deposition modeling (FDM). Based on test results, an optimized version of the burner was then designed and manufactured using selective laser melting (SLM). The functionality of the designed catalytic burner was proven. Several advantages were found in comparison to conventional non-catalytic burners. In particular, flameless uniform low temperature heat generation with temperatures of about 200 °C could be realized. This contribution highlights the potential of additive manufacturing in chemical engineering. Not only was the final product built using SLM, but also during the development process, FDM was used for rapid prototyping.
中文概要
目的
设计制造低温的催化氢气燃烧器,并对其进行相关功能性测试。
创新点
成功设计并制造出一个集成流量分配器的催化低温氢气燃烧器。
方法
1. 基于树状分叉方法,设计燃烧器的流量分配器, 均匀分配气体到催化表面,并利用熔融沉积成型技术制备原型样机。2. 基于测试结果,利用选择性激光熔化技术对燃烧器进行最优化设计。3. 对 设计的催化燃烧器的相关功能进行验证。
结论
1. 设计的低温催化燃烧器与传统的非催化燃烧器相比具有很多优势,尤其是实现了无焰均匀低温 (约200 °C)的产热;这一技术有望运用于化工领域的增材制造。2. 本文不但用选择性激光熔融 技术制备了最终产品,而且利用了熔融沉积成型 技术进行快速的样机制备。3. 催化剂多孔载体的调控和催化剂的负载方式研究有望进一步提升 燃烧器的综合性能。
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Acknowledgements
The authors would like to thank Dr. Rémi COSTA from “Deutsches Zentrum für Luft- und Raumfahrt” (DLR, 70569 Stuttgart, Germany) for sputtering the sintered metal filter with Pt/Pd alloy.
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Dubbe, H., Holl, E., Spierings, A. et al. Development of a spatially uniform low-temperature hydrogen combustor. J. Zhejiang Univ. Sci. A 19, 735–745 (2018). https://doi.org/10.1631/jzus.A1700620
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DOI: https://doi.org/10.1631/jzus.A1700620