Thermophoretic deposition efficiency of particles in flow along an annular cross-section
عنوان مقاله: Thermophoretic deposition efficiency of particles in flow along an annular cross-section
شناسه ملی مقاله: ICHEC05_269
منتشر شده در پنجمین کنگره بین المللی مهندسی شیمی در سال 1386
شناسه ملی مقاله: ICHEC05_269
منتشر شده در پنجمین کنگره بین المللی مهندسی شیمی در سال 1386
مشخصات نویسندگان مقاله:
Samira Hashemi - Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
Soltani Goharrizi - Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
خلاصه مقاله:
Samira Hashemi - Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
Soltani Goharrizi - Department of Chemical Engineering, Shahid Bahonar University of Kerman, Kerman, Iran
Thermophoresis is an important mechanism of micro-particle transport due to a temperature gradient in the surrounding medium and has found numerous applications, especially in the field of aerosol technology. This study investigates the thermophoretic deposition efficiency of particles in laminar gas flow in a concentric annulus using the critical trajectory method numerically. The governing equations include the momentum and energy equations for the gas and the particle equations of motion. The effect of the annulus size and the ratio of inner to outer tube wall temperature on the deposition efficiency were studied. Simulation results suggest that thermophoretic deposition increases with increasing thermal gradient, deposition distance, and the ratio of inner to outer radius.
کلمات کلیدی: Thermophoresis, thermophoretic deposition efficiency, particle deposition, annulus
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/46119/