کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
662758 1458181 2005 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Visualization study of pool boiling from thin confined enhanced structures
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Visualization study of pool boiling from thin confined enhanced structures
چکیده انگلیسی

A visualization study of pool boiling at atmospheric pressure from top-covered enhanced structures was conducted for a dielectric fluorocarbon liquid (PF 5060). The single layer enhanced structures studied were fabricated in copper and quartz, had an overall size of 10 mm × 10 mm and were 1 mm thick. The parameters investigated in this study were the heat flux (in the range of 1–11 W/cm2 for copper and 1–4 W/cm2 for quartz) and the width of the microchannels (65–360 μm). A high-speed camera (maximum frame rate 1000 f/s at full resolution) with attached magnifying lens allowed precise observation of the evaporation process in the bottom and top channels. The heat transfer performance of the enhanced structures was found to depend weakly on the channel width. The internal evaporation has a significant contribution to the total heat dissipation, especially at low heat fluxes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 48, Issues 21–22, October 2005, Pages 4287–4299
نویسندگان
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