نوع مقاله : مقاله پژوهشی
نویسندگان
1 Sirjan, Iran
2 دانشگاه تهران
3 استادیار، دانشگاه تحصیلات تکمیلی صنعتی و فناوری پیشرفته، کرمان، ایران
چکیده
کلیدواژهها
عنوان مقاله [English]
نویسندگان [English]
The analysis of heat transfer in the channel configuration in many types of heat exchangers, such as electric cooling equipment, solar collectors, heat exchanger systems, high-performance boilers, gas turbine blade coolers, etc., is the basis of the design, construction, and optimization. Controlling heat transfer to increase the rate of heat transfer in such systems by improving the cooling method is a practical energy engineering from the point of saving energy. It is very crucial to increase the heat transfer performance in the scales of macro and microchannels. Expanded surfaces in the channel are a practical method to increase the heat transfer coefficient. In the upcoming article, the smart design of a two-dimensional nanofluid heat exchanger has been studied numerically in order to achieve optimal performance conditions in terms of heat transfer rate utilizing a genetic algorithm, image processing method, and finite volume method, the amount of deposition of nanoparticles in the structure of the exchanger, as well as the fluid pressure drop while passing through it. It can be seen that the geometric structure optimized by the combination of genetic algorithm and computational fluid dynamics of this channel causes an increase of 1.14% in the enthalpy of the passing nanofluid, a decrease of 11.21% in the pressure drop of the passing nanofluid, and a decrease of 8.44%. percentage in the deposition of nanoparticles inside the channel and a total increase of 24.82% in the fitting function defined in terms of these three variables, compared to the channel designed in previous studies. Therefore, this optimal channel has a higher heat transfer rate with a pressure drop and a lower amount of nanoparticle deposition compared to the simple channels, which is proof of the ability of the genetic algorithm with computational fluid dynamics in the optimal design of all types of heat exchangers.
کلیدواژهها [English]
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