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基于三套管式相变蓄热器的特点,提出应用T字形翅片来强化相变蓄热器的传热性能。研究结果表明:添加翅片可有效地降低蓄热器中相变材料的凝固和融化时间,直翅片和T字形翅片的混合强化结构能使凝固过程比未强化结构节省74%的时间,使融化过程节省60%的时间。因此直翅片和T字形翅片的混合使用可以达到进一步强化传热的目的。
Based on the characteristics of the three-tube type phase-change heat accumulator, T-shaped fins are proposed to enhance the heat transfer performance of the phase-change heat accumulator. The results show that the addition of fins can effectively reduce the solidification and melting time of the phase change material in the regenerator. The mixing and strengthening structure of the straight fins and T-shaped fins can make the solidification process save 74% of the time, Save up to 60% of the time on thawing. Therefore, the straight fins and T-shaped fins mixed use can achieve the purpose of further enhancing heat transfer.