1. Study on heat transfer and fluidity of three-dimensional invisible finned-tube
- Author
-
Fang Wang, Yin Yingde, Zhu Dongsheng, and Mo Xun
- Subjects
Materials science ,Flow (psychology) ,02 engineering and technology ,Heat transfer coefficient ,Mechanics ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Performance factor ,010406 physical chemistry ,0104 chemical sciences ,Heat exchanger ,Heat transfer ,Tube (fluid conveyance) ,Physical and Theoretical Chemistry ,0210 nano-technology - Abstract
Three-dimensional invisible finned-tube is a kind of high-efficiency enhanced tube which is widely used at present. In order to study and analyze advantages and disadvantages of heat transfer and flow performance of the three-dimensional invisible finned-tube, other enhanced tube heat exchangers are introduced and compared through experiments. After analysis and research, it is found that the total heat transfer coefficient K is not the only indexes for evaluating the performance of the heat exchanger, and the resistance is also one of the indexes. According to the evaluation standard of the comprehensive performance of the heat exchanger, the comprehensive performance factor η of the tube side and shell side of the three-dimensional invisible finned-tube heat exchanger is better than that of the other enhanced tube heat exchanger, and the enhanced tube standard is reached under certain conditions, which shows that the three-dimensional invisible finned-tube heat exchanger has excellent performance. The analysis results in this paper have certain guiding significance for engineering design and application of three-dimensional invisible finned-tube heat exchanger.
- Published
- 2020