Temperature and radiation characteristics of the continuous injection flame of a zirconium dust cloud

IF 4.2 2区工程技术 Q2 ENGINEERING, CHEMICAL

Advanced Powder Technology Pub Date : 2025-01-27 DOI:10.1016/j.apt.2025.104781

Qiuhong Wang , Bin Peng , Jun Deng , Chi-Min Shu , Qingfeng Wang , Guoqiang Dong , Di Wu

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Abstract

The exothermic properties of zirconium powder make it widely used in aerospace, military, atomic energy and other fields. The temperature and radiation characteristics of the continuous jet flame of zirconium dust cloud were studied by a self-designed experimental system. For the zirconium powder injection flame temperature, a comprehensive correction equation for thermocouple temperature measurement was developed for the continuous dust-feeding combustion particle load flow. When the dust cloud concentrations in the non-intermittent flame area are 328.48, 410.35, and 483.59 g/m³, respectively: at the spectral wavelength of 5.0 μm, the zirconium dust cloud jet flame emissivity values are 0.2, 0.19, and 0.18; the maximum flame temperature are 2147.5, 2248.1, and 2377.8 °C; the radiant heat flux characteristics of continuous jet flame of zirconium dust cloud were evaluated by heat flow meter, and the radiant heat fluxes on the surface of zirconium jet flame were calculated to be 42.82, 64.99, and 55.96 kW/m². It is found that the flame emissivity is linearly negatively correlated with the maximum flame temperature of the zirconium jet flame, and the thermal radiation is mainly concentrated in the jet flame body of the zirconium dust cloud.

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来源期刊

Advanced Powder Technology 工程技术-工程：化工

CiteScore

9.50

自引率

7.70%

发文量

424

审稿时长

55 days

期刊介绍： The aim of Advanced Powder Technology is to meet the demand for an international journal that integrates all aspects of science and technology research on powder and particulate materials. The journal fulfills this purpose by publishing original research papers, rapid communications, reviews, and translated articles by prominent researchers worldwide. The editorial work of Advanced Powder Technology, which was founded as the International Journal of the Society of Powder Technology, Japan, is now shared by distinguished board members, who operate in a unique framework designed to respond to the increasing global demand for articles on not only powder and particles, but also on various materials produced from them. Advanced Powder Technology covers various areas, but a discussion of powder and particles is required in articles. Topics include: Production of powder and particulate materials in gases and liquids(nanoparticles, fine ceramics, pharmaceuticals, novel functional materials, etc.); Aerosol and colloidal processing; Powder and particle characterization; Dynamics and phenomena; Calculation and simulation (CFD, DEM, Monte Carlo method, population balance, etc.); Measurement and control of powder processes; Particle modification; Comminution; Powder handling and operations (storage, transport, granulation, separation, fluidization, etc.)