سال انتشار: ۱۳۸۴

محل انتشار: پنجمین همایش ملی انرژی

تعداد صفحات: ۱۳

نویسنده(ها):

Goshayshi – Azad University
Missenden – London South Bank University

چکیده:

The effect of form with corrugated packing on mass transfer and pressure drop characteristics in atmospheric cooling towers has been studied experimentally. The results showed that the mass transfer coefficient decreased with increase in packing pitch and increase in the ratio of rib pitch to rib height. Friction factors were expressed by a dimensional equation, which included pitch and distance between the packings, for both smooth and rough surface. From these results, the relationship between packing mass transfer coefficient and pressure drop was deduced. The correlations were verified with additional experimental data taken with 1.1< P/D < 1.70 and 1 ≤ p/e ≤ ۵٫ This provides a useful semi experimental relation, in the area generally lacking in design and performance data.