نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجوی دکتری مهندسی مکانیک، دانشگاه ارومیه، ارومیه، ایران
2 استاد، دانشکده مهندسی مکانیک، دانشگاه ارومیه، ارومیه، ایران
3 استادیار، دانشکده مهندسی مکانیک، دانشگاه ارومیه، ارومیه، ایران
چکیده
کلیدواژه‌ها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The present study investigates and simulates the status of cold air distribution in a microwave oven hall and proposes a new method to improve the room temperature. Initially, the present hall is simulated by computational fluid dynamics method and validated using empirical data measured by sensors used in rack output. Comparison of the simulation results and the available experimental data shows very good agreement between these data. Temperature measurement with error less than 1 degree indicates the correct choice of numerical solution method in the present study. In the computational fluid dynamics method, the effect of the arrangement of the racks was investigated by changing the arrangement. The results showed that by moving the racks, better cooling conditions can be achieved. In the final step, using the computational fluid dynamics solution and neural network is proposed the best arrangement of racks. Based on the numerical simulation, the lowest and highest supply heat index are 0.456 and 0.631, respectively, and the lower the heat index, the higher the cooling efficiency. The optimal alignment is obtained from the simulation results. The average wall temperature of the racks has been used in optimization. The average temperature of the optimum alignment rack obtained from the neural network is 21.9 ° C which is 0.7 ° C lower than the best simulation.
کلیدواژه‌ها [English]
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