کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
658435 1458084 2013 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Rewetting of a hot horizontal surface through mist jet impingement cooling
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Rewetting of a hot horizontal surface through mist jet impingement cooling
چکیده انگلیسی

An experimental investigation has been carried out to study the rewetting behaviour of a hot horizontal stainless steel surface during the mist jet impingement cooling. The experiments have been performed to study the rewetting behaviour for three different initial surface temperatures viz. 255, 355, 565 °C. An axis-symmetric nozzle has been used to develop the mist jet of constant flow rate. The variation in surface temperature has been acquired up to 20 mm downstream spatial locations away from the stagnation point. It has been observed that unlike liquid jet impingement cooling the rise in surface initial temperature increases the rewetting temperature and the wetting delay increase with rise in the initial surface temperature but the rewetting velocity reduces. Further, the maximum surface heat flux is the highest at 20 mm spatial location for 565 °C initial surface temperature. Whereas, at the stagnation point, the maximum surface heat flux is not affected by the change in surface initial temperature.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 58, Issues 1–2, March 2013, Pages 188–196
نویسندگان
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