کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
660500 1458116 2010 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A correlation to predict heat-transfer rates of a two-phase closed thermosyphon (TPCT) using silver nanofluid at normal operating conditions
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
A correlation to predict heat-transfer rates of a two-phase closed thermosyphon (TPCT) using silver nanofluid at normal operating conditions
چکیده انگلیسی

The effect of using silver nanofluid (de ionized water mixed with silver nano and particles less than 100 nm) on the thermal characteristics of a two-phase closed thermosyphon in an operating state was investigated in this research. The thermosyphon was made with copper tubes with 7.5, 11.1 and 25.4 mm ID. The filling ratios of 30%, 50% and 80% by evaporator length and aspect ratios of 5, 10, and 20 with an inclination angle 90°. The operating temperatures were 40 °C, 50 °C and 60 °C. The research reports the effect of dimensionless parameters on heat-transfer characteristics were: Ledi, Bo, Pr, We, Fr, Ja, Co, Nu, Ar, Gr and Ku. It was found that the filling ratio has no effect on the ratio of heat-transfer characteristics in the vertical position, but the properties of the working fluid affected the heat-transfer rate. In addition a correlation for predicting the heat flux for the two-phase closed thermosyphon in the vertical position has been established.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 53, Issues 21–22, October 2010, Pages 4960–4965
نویسندگان
, , ,