کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7175513 1466408 2015 35 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
A simplified thermal CFD approach to fins and tube heat exchanger: Application to maldistributed airflow on an open display cabinet
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
پیش نمایش صفحه اول مقاله
A simplified thermal CFD approach to fins and tube heat exchanger: Application to maldistributed airflow on an open display cabinet
چکیده انگلیسی
Airflow maldistribution in heat exchangers and air channels is a common problem in HVAC&R systems. Furthermore, in the refrigeration field, temperature and velocity maldistribution downstream the evaporator can reach the discharge air grille, negatively influencing the heat removal from the exposed goods. In the present paper, the effect of the flow maldistribution in the air channel of an open refrigerated display cabinet is studied by means of computational fluid dynamics simulations. An equivalent thermal approach is presented: in combination with the equivalent resistance approach, it allows a drastic reduction of computational effort. This thermal CFD model allows to evaluate the 3D effects of the maldistribution in terms of temperature, heat transfer coefficients, and cooling power in the full channel model. Discussion of the results is reported.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Refrigeration - Volume 57, September 2015, Pages 208-215
نویسندگان
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