کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
645947 | 1457153 | 2015 | 21 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Design and manufacture of ceramic heat pipes for high temperature applications
ترجمه فارسی عنوان
طراحی و ساخت لوله های گرمایی سرامیکی برای کاربردهای با درجه حرارت بالا
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کلمات کلیدی
لوله گرمایش سرامیکی، گرما کمک لوله گرما، ترموسفون، مبدل حرارتی، لیزر لحیم کاری سرامیک،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Heat exchangers based on ceramic heat pipes were designed for use under highly abrasive and corrosive atmospheres at temperatures in the range of 800-1200 °C for high-temperature power-engineering applications. The presented heat pipes are gravity assisted and based on a multi-layer concept comprising a ceramic cladding and an inner metal tube that contains sodium as the working fluid. Hermetical encapsulation of the working fluid was achieved by electron-beam welding of the inner metal tube. Subsequently, closure of the surrounding ceramic tube was performed by laser brazing technology using a glass solder. Temperature resistance and functionality of the manufactured ceramic thermosyphons could be confirmed experimentally in a hot combustion gas atmosphere at temperatures up to 1100 °C. The ceramic tubes used had an outer diameter of 22 mm and a total length of 770 mm. The measured axial heat transfer of the ceramic gravity assisted heat pipes at the stationary operating point with cold/hot gas temperature of 100 °C/900 °C was 400 W. The result of the calculation using the created mathematical model amounted to 459 W.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 75, 22 January 2015, Pages 692-699
Journal: Applied Thermal Engineering - Volume 75, 22 January 2015, Pages 692-699
نویسندگان
Peter Meisel, Matthias Jobst, Wolfgang Lippmann, Antonio Hurtado,