کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4990468 | 1457103 | 2017 | 26 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental study of an ammonia loop heat pipe with a flat disk-shaped evaporator using a bimetal wall
ترجمه فارسی عنوان
آزمایش تجربی یک لوله گرمای حلقه آمونیاک با یک اواپراتور با شکل صاف با استفاده از دیوار دو رنگ
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کلمات کلیدی
حلقه لوله حرارتی، اسپری تخت، ویک، مقاومت حرارتی، شار حرارتی، بار حرارتی، خنک کننده الکترونیک،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
A loop heat pipe (LHP) with a flat disk-shaped evaporator 40 mm in diameter and 18 mm in thickness has been developed and tested. The device was made of stainless steel and equipped with a main nickel biporous wick and a secondary wick made of a porous material with a low thermal conductivity. The flat evaporator wall being heated was made of a “stainless steel - copper” bimetal. The working fluid was ammonia. The LHP thermal characteristics were investigated at different orientations with slopes from â90° to +90° and heat sink temperatures in the range from 0 to 40 °C. A maximum heat load of 300 W (23.9 W/cm2) at an evaporator temperature of no more than 80 °C was achieved at both a favorable and a horizontal orientation of the LHP. A minimum thermal resistance of the evaporator of 0.067 °C/W was obtained at a heat load of 220 W. The corresponding value of the LHP thermal resistance was equal to 0.084 °C/W. It has been found that under changes of orientation in the whole range of slopes the maximum heat load changes no more than 30%. It is shown that a heat source temperature not more than 85 °C can be ensured in all test conditions at heat loads up to 140 W.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 126, 5 November 2017, Pages 643-652
Journal: Applied Thermal Engineering - Volume 126, 5 November 2017, Pages 643-652
نویسندگان
Yu.F. Maydanik, S.V. Vershinin, M.A. Chernysheva,