强激光与粒子束, 2005, 17 (5): 719, 网络出版: 2006-04-28   

空心玻璃微球与载气之间传热过程的影响因素

Investigation on heat transfer between furnace atmosphere and hollow glass microspheres
作者单位
中国工程物理研究院激光聚变研究中心,四川,绵阳,621900
摘要
为实现玻璃微球与载气之间传热过程的定量控制,建立了玻璃微球与载气之间的热传递模型,研究了载气组份、温度、压力以及微球直径和壁厚对玻璃微球与载气之间传热过程的影响.结果表明:在干凝胶法制备空心玻璃微球工艺中常用载气组份、温度和压力范围内,载气温度和压力对玻璃微球与载气之间传热阻力的影响都可以忽略,但载气中的氦气含量对微球与载气之间传热阻力的影响很显著.随着微球壁厚的增大,玻璃微球与载气之间传热阻力显著增加.因此,改变载气中的氦气含量可以作为控制微球与载气之间传热过程的有效方法,并且随着微球壁厚的增大,提高载气中的氦气含量对增强载气与微球之间传热性能的作用逐渐增强.
Abstract
To explore heat transfer process between the hollow glass microspheres and furnace atmosphere in fabricating hollow glass microspheres by the sol-gel technology, the effect of component percentage, temperature and total pressure of Ar/He gas mixture on the overall thermal resistance between microsphere and furnace atmosphere was studied. The influence of the diameter and the wall thickness of a microsphere on the overall thermal resistance was also investigated. The results show that, in the range of component percentage, temperature and pressure of Ar/He gas mixture commonly used in fabricating hollow glass microspheres by the sol-gel technology, an increase in the volume fraction of helium in the furnace atmosphere can significantly reduce the overall thermal resistance, but increasing the temperature and pressure of furnace atmosphere has little influence on the overall thermal resistance.
参考文献

[1] 唐永建.激光惯性约束聚变靶技术研究[J].核物理动态,1995,12(4):50-53.
Tang Y J.Investigation on inertial confinement fusion (ICF) target. Trends in Nuclear Physics, 1995, 12(4) :50-53.

[2] Downs R L, Ebner M A, Miller W J. Hollow glass microsphere by Sol-Gel technology[A]. Sol-Gel Technology for Thin films, Fibers, Preforms, Electronic, and Specialty Shapes[C]. Park Ridge: Noyes Publications, 1988. 335-340.

[3] Dorogotovtsev V M, Akunets A A. Influence of the properties of the furnace atmosphere on microsphere quality[J]. Fusion Technology,1997, 31:411-417.

[4] Downs R L, Ebner M A, Nolen R L. Glass shell manufacturing in space[R]. Michigan: KMS Fusion, 1981.

[5] Campbell J H, Grens J Z, Poco J F. Preparation and properties of hollow microspheres for use in laser fusion experiments[R]. Livermore CA: Lawrence Livermore National Laboratory, 1983.

[6] Morrison R L. Furnace physics as applied to inertial confinement fusion target microsphere production[R]. Livermore CA: Lawrence Livermore National Laboratory, 1980.

[7] Masters K. Spray drying[M]. London: Leonard Hill Books, 1972. 285-287.

[8] Ranz W E, Marshall W R. Evaporation from drops[J]. Chemical Engineering Progress, 1952, 48(3) :173-178.

[9] Nolen R L, Ebner M A, Downs R L. Glass shell manufacturing in space[R]. Michigan: KMS Fusion, 1980.

[10] 邱龙会,傅依备,魏芸,等.液滴法制备空心玻璃微球的模拟计算[J].强激光与粒子束,2002,14(3):397-402.
Qiu L H,Fu Y B,Wei Y, et al. Mathematic simulation of the physical process to fabricate hollow glass microspheres by liquid droplet method. High Power Laser and Particle Beams, 2002, 14(3):397-402.

[11] 漆小波,李波,唐永建,等.载气环境对液态空心玻璃微球运动状态的影响[J].强激光与粒子束,2005,17(4):543-547.
Qi X B,Li B,Tang Y J, et al. Influence of furnace atmosphere properties on kinetic behaviors of liquid hollow glass microsphere. High Power Laser and Particle Beams, 2005, 17(4) :543-547.

漆小波, 唐永建, 李波, 张占文, 陈素芬, 师韬. 空心玻璃微球与载气之间传热过程的影响因素[J]. 强激光与粒子束, 2005, 17(5): 719. QI Xiao-bo, TANG Yong-jian, LI Bo, ZHANG Zhan-wen, CHEN Su-fen, SHI Tao. Investigation on heat transfer between furnace atmosphere and hollow glass microspheres[J]. High Power Laser and Particle Beams, 2005, 17(5): 719.

本文已被 3 篇论文引用
被引统计数据来源于中国光学期刊网
引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!