کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
663391 1458166 2006 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A numerical model for the analyses of heat transfer and leakages in a rotary air preheater
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
A numerical model for the analyses of heat transfer and leakages in a rotary air preheater
چکیده انگلیسی

Air preheaters make a considerable contribution to the improved overall efficiency of fossil-fuel-fired power plants. In this study we used a combination of fluid dynamics and a newly developed three-dimensional numerical model for heat transfer as the basis for a theoretical analysis of a rotary air preheater. The model enables studies of the flue-gas flow through the preheater and the adjoining channels as well as the regenerative heat transfer and the resulting temperature distribution in the matrix of the preheater. Special attention was focused on the influences of leakages on the flue-gas parameters in the preheater. The numerical analysis and the experimental results showed an obvious dependence of the flue-gas parameters on various seal settings. Based on the results a method for online monitoring of the tightness of the radial seals is proposed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 49, Issues 25–26, December 2006, Pages 5001–5009
نویسندگان
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