کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8208324 | 1531901 | 2018 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The contact heat transfer between the heating plate and granular materials in rotary heat exchanger under overloaded condition
ترجمه فارسی عنوان
انتقال حرارت تماس بین صفحه حرارت و مواد گرانول در مبدل حرارتی دوار در شرایط بارگیری
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کلمات کلیدی
مبدل حرارتی روتاری، تماس با انتقال حرارت، مواد گرانول ورق گرم بیش از حد،
موضوعات مرتبط
مهندسی و علوم پایه
فیزیک و نجوم
فیزیک و نجوم (عمومی)
چکیده انگلیسی
In the present work, the contact heat transfer between the granular materials and heating plates inside plate rotary heat exchanger (PRHE) was investigated. The heat transfer coefficient is dominated by the contact heat transfer coefficient at hot wall surface of the heating plates and the heat penetration inside the solid bed. A plot scale PRHE with a diameter of Doâ¯=â¯273â¯mm and a length of Lâ¯=â¯1000â¯mm has been established. Quartz sand with dpâ¯=â¯2â¯mm was employed as the experimental material. The operational parameters were in the range of Ïâ¯=â¯1â¯-â¯8â¯rpm, and Fâ¯=â¯15, 20, 25, 30%, and the effect of these parameters on the time-average contact heat transfer coefficient was analyzed. The time-average contact heat transfer coefficient increases with the increase of rotary speed, but decreases with the increase of the filling degree. The measured data of time-average heat transfer coefficients were compared with theoretical calculations from Schlünder's model, a good agreement between the measurements and the model could be achieved, especially at a lower rotary speed and filling degree level. The maximum deviation between the calculated data and the experimental data is approximate 10%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Results in Physics - Volume 8, March 2018, Pages 600-609
Journal: Results in Physics - Volume 8, March 2018, Pages 600-609
نویسندگان
Luanfang Duan, Chonggang Qi, Xiang Ling, Hao Peng,