| 风速非均匀分布对蒸发器性能的影响 |
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| 引用本文： | 黄东,吴蓓.风速非均匀分布对蒸发器性能的影响[J].西安交通大学学报,2010,44(9). |
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| 作者姓名： | 黄东 吴蓓 |
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| 作者单位： | 西安交通大学能源与动力工程学院,710049,西安 |
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| 摘 要： | 研究、对比了均匀和非均匀风速下蒸发器的性能,实验测量了某空调蒸发器表面的风速非均匀分布,数值模拟了该非均匀风速下蒸发器的性能,实验验证了非均匀风速下模拟结果的准确性.研究结果表明:非均匀分布时风速比均匀风速大的管路换热量较之均匀风速时的有所增加,风速比均匀风速小的管路换热量较之均匀风速时的有所减小,且换热量减小的幅度比增加的更加显著;传热系数随风速非线性增加;各支路出口状态差别越大,蒸发器换热量的衰减幅度就越大.
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| 关 键 词： | 非均匀风速 传热系数 换热量 蒸发器 |
Effect of Non-Uniform Air Velocity Distribution on Evaporator Performance |
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| HUANG Dong,WU Bei.Effect of Non-Uniform Air Velocity Distribution on Evaporator Performance[J].Journal of Xi'an Jiaotong University,2010,44(9). |
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| Authors: | HUANG Dong WU Bei |
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| Institution: | HUANG Dong,WU Bei(School of Energy and Power Engineering,Xi'an Jiaotong University,Xi'an 710049,China) |
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| Abstract: | The performance of an evaporator with a non-uniform air velocity distribution was compared with that with a uniform air velocity distribution.The non-uniform air velocity distribution on the surface of the evaporator was measured experimentally.The evaporator simulation was conducted with the air velocity profile measured.The simulation results for the evaporator with the non-uniform air velocity distribution agree well with the experimental data.The results show that for the non-uniform air velocity profil... |
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| Keywords: | non-uniform air velocity heat transfer coefficient capacity evaporator |
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