首页   按字顺浏览 期刊浏览 卷期浏览 Studies of Energetic and Nonenergetic Materials Immersed in Molten Salts
Studies of Energetic and Nonenergetic Materials Immersed in Molten Salts

 

作者: M. B. LACCHIA,   B. D. SHAW,  

 

期刊: Combustion Science and Technology  (Taylor Available online 1998)
卷期: Volume 139, issue 1  

页码: 59-73

 

ISSN:0010-2202

 

年代: 1998

 

DOI:10.1080/00102209808952081

 

出版商: Taylor & Francis Group

 

关键词: Explosives;experimental methods;combustion in practical systems - furnaces

 

数据来源: Taylor

 

摘要:

Immersion of energetic materials into molten-salt baths is being considered as a method for their safe destruction. In the present research, a solid energetic material, 2,6-dinitrotoluene (DNT), and a solid nonenergetic material, solidifiedn-dodecane, were studied. Cylindrical samples initially about 1 cm in diameter were injected into salt baths, and data were taken photographically. As salt temperatures increased, surface regression rates increased. Thin gas films were observed to exist around the samples. In addition, DNT bubbles displayed sudden rapid size increases with strong increases in opacity suggesting that chemical reactions were taking place in the bubbles; these behaviors were not observed with bubbles from the dodecane samples. Temperature profiles inside the samples were measured using thermocouples; data indicate that thin thermal boundary layers existed near the sample surfaces. Estimates suggest that sample lifetimes and surface regression rates were controlled by convective heat transfer through the gas films, even for the energetic material, with radiant heat transfer being subdominant. Sample lifetimes were in the range 1-2.5 s. In addition to advancing fundamental knowledge, these results are of use for aiding in the design of molten-salt reactors.

 

点击下载:  PDF (432KB)



返 回