双流程空冷散热器不同布置方式对散热系数影响分析
发布时间：2019-03-06 13:17
【摘要】：本文通过理论推导给出了散热器的冷热流体的温度分布计算公式,并计算分析了初始温差、顺逆流程及散热器高度对散热系数的影响。计算结果表明,初始温差(ITD)不会影响顺、逆流程的综合散热系数;逆流程散热系数总是大于顺流程;顺流程的散热系数随着散热器高度的增加不断减小,但散热器高度对逆流程的散热系数影响很小。此结果对工程设计具有重要的参考价值。
[Abstract]:In this paper, the calculation formula of the temperature distribution of the heat and cold fluid of the radiator is derived theoretically, and the influence of the initial temperature difference, the inverse flow and the height of the radiator on the heat dissipation coefficient is calculated and analyzed. The calculation results show that the initial temperature difference (ITD) has no effect on the overall heat dissipation coefficient of the reverse process, and the heat dissipation coefficient of the inverse process is always larger than that of the following process. The heat dissipation coefficient along the flow decreases with the increase of radiator height, but the radiator height has little effect on the heat dissipation coefficient of the inverse flow. This result has important reference value for engineering design.
【作者单位】： 中国水利水电科学研究院水力学研究所;国核电力规划设计研究院;
【分类号】：TK172
[Abstract]:In this paper, the calculation formula of the temperature distribution of the heat and cold fluid of the radiator is derived theoretically, and the influence of the initial temperature difference, the inverse flow and the height of the radiator on the heat dissipation coefficient is calculated and analyzed. The calculation results show that the initial temperature difference (ITD) has no effect on the overall heat dissipation coefficient of the reverse process, and the heat dissipation coefficient of the inverse process is always larger than that of the following process. The heat dissipation coefficient along the flow decreases with the increase of radiator height, but the radiator height has little effect on the heat dissipation coefficient of the inverse flow. This result has important reference value for engineering design.
【作者单位】： 中国水利水电科学研究院水力学研究所;国核电力规划设计研究院;
【分类号】：TK172
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