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首页> 外文期刊>Arabian Journal for Science and Engineering. Section A, Sciences >Thermal Performance and Exergy Analysis for Conical Fins with Rift
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Thermal Performance and Exergy Analysis for Conical Fins with Rift

机译：带有裂谷的锥形鳍片的热性能和火用分析

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摘要

This experimental research study has been conducted to analyze the second law and thermal performance of conical fins with rift. There are studies in the literature examining the effect of traditional circular fins and conical fins on heat transfer. However, there are no studies in the literature examining the methods for increasing the thermal performance of conical fins. This experimental study was conducted for the purpose of making up this deficiency. Besides the examination of thermal performance of the conical fins with rift, exergy analysis has also been carried out. That is, the study has been made more comprehensive. In addition to riftless conical fins, the experiments were carried out by using the fins with a rift spacing of 1.5 and 3.5mm so that the boundary layer separation mechanism can be accelerated according to riftless conical fins. Experimental results for eight different velocities of air flow (2-20m/s) have been presented. In the present study, experimental research was conducted on conical fins with and without rift at different inclination angles (45 degrees, 60 degrees and 80 degrees). Thus, the inclination angle at which the conical fin with rift is better than the riftless conical fin has been determined in terms of thermal performance and exergy analysis. It has been found that the conical fin with rift at 60 degrees inclination angle is better in terms of both thermal performance and the second law of efficiency, when compared with the riftless conical fin. These results for r=1.5mm at = 60 degrees encourage the use of conical fins with rift compared to traditional circular fins in literature.
机译：进行了这项实验研究，以分析具有裂口的圆锥形鳍的第二定律和热性能。有文献研究了传统圆形散热片和圆锥形散热片对热传递的影响。但是，没有文献研究提高锥形散热片热性能的方法。进行这项实验研究是为了弥补这一缺陷。除了用裂口检查锥形散热片的热性能外，还进行了火用分析。即，该研究已经变得更加全面。除了无裂口圆锥形翅片以外，还使用裂隙间距为1.5和3.5mm的翅片进行了实验，从而可以根据无裂口圆锥形翅片来加速边界层分离机理。给出了八种不同流速（2-20m / s）的实验结果。在本研究中，对具有和不具有裂痕的不同倾斜角（45度，60度和80度）的锥形鳍进行了实验研究。因此，就热性能和火用分析而言，已经确定了具有裂谷的锥形翅片比无裂谷的锥形翅片更好的倾斜角度。已经发现，与无裂口圆锥形翅片相比，具有60度倾斜角的裂口的锥形翅片在热性能和效率的第二定律方面都更好。与文献中传统的圆形鳍相比，在= 60度时r = 1.5mm的这些结果鼓励使用带有裂痕的圆锥形鳍。

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