Experimental validation of model predictions on evaporator coils with an emphasis on fin efficiency
Experimental validation of model predictions on evaporator coils with an emphasis on fin efficiency
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DOI：
10.1016/j.ijthermalsci.2009.08.004
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发表时间：
2010
影响因子：
4.5
通讯作者：
S. Y. Liang;T. Wong
中科院分区：
文献类型：
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作者：
S. Y. Liang;T. Wong
当蒸发器盘管在潮湿条件下工作时，由于潮湿空气的冷凝，同时发生传热和传质。在蒸发器建模中，总翅片效率通常用于热平衡和质量守恒方程中，以计算显热和潜热传递。本文引入显翅效率和潜翅效率这一新的概念来分析蒸发器盘管上的同时传热传质。结果表明，潜鳍效率一般不等于显鳍效率或总鳍效率。本文提出的一维湿翅效率模型，通过将模型预测与不同配置的蒸发器盘管（包括简单和复杂制冷剂回路）的实验数据进行了广泛的比较，验证了模型的有效性。
Simultaneous heat and mass transfers occur when an evaporator coil works in a wet condition due to the condensation of moist air. In evaporator modeling, overall fin efficiency is commonly used in heat balance and mass conservation equations to calculate sensible and latent heat transfers. In this paper, to analyze the simultaneous heat and mass transfer on the evaporator coils, a new concept, i.e. sensible and latent fin efficiencies, is introduced. The result shows that the latent fin efficiency is generally not equal to the sensible or the overall fin efficiencies. The proposed 1-D wet fin efficiency model has been validated by the extensive comparison of the model predictions against the experimental data on evaporator coils with various configurations that include simple and complex refrigerant circuitry.