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首页> 外文期刊>Energy and Buildings >Small-scale single-panel liquid-to-air membrane energy exchanger (LAMEE) test facility development, commissioning and evaluating the steady-state performance
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Small-scale single-panel liquid-to-air membrane energy exchanger (LAMEE) test facility development, commissioning and evaluating the steady-state performance

机译:小型单板液空膜换热器(LAMEE)测试设施的开发,调试和评估稳态性能

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摘要

A new test facility was developed to assess the performance of a small-scale single-panel liquid-to-air membrane energy exchanger (LAMEE). Mass and energy balances of the exchanger were computed for each test. The steady-state performance of the small-scale LAMEE was experimentally investigated under different operating conditions. Water was used as a liquid transfer media for the experiments and the exchanger was tested for air heating and humidifying (H&H), air cooling and humidifying (C&H), and air cooling and dehumidifying (C&D) at three different NTU values (2.5,3.5 and 4.5) and Cr~* - 7. The experimental results were compared to results from a numerical and two analytical models. In most cases, reasonable agreement among the experimental, numerical and analytical results was achieved except for the sensible effectiveness in the H&H and latent and total effectiveness in the C&H test cases. The results showed that the effectiveness of the small-scale LAMEE always increased with NTU for all test conditions. Sensible and latent effectiveness contour maps of the small-scale LAMEE were generated numerically for different inlet air conditions and for NTU = 3.5 and Cr~*-7, while the water inlet temperature was set at 22 ℃. Finally, the effectiveness contour maps were compared with three experimental test conditions.
机译:开发了一种新的测试设备,以评估小型单面板液-气膜能量交换器(LAMEE)的性能。为每个测试计算交换器的质量和能量平衡。实验研究了小型LAMEE在不同操作条件下的稳态性能。将水用作实验的液体传输介质,并在三种不同的NTU值(2.5,3.5和4.5)和Cr〜*-7。将实验结果与数值模型和两个分析模型的结果进行比较。在大多数情况下,除了在H&H方面具有合理的有效性以及在C&H测试案例中具有潜在的和总体的有效性之外,在实验,数值和分析结果之间都取得了合理的一致性。结果表明,在所有测试条件下,小型LAMEE的有效性始终随NTU的增加而提高。在进水温度设定为22℃的情况下,针对不同的进气条件和NTU = 3.5和Cr〜* -7数值生成了小规模LAMEE的灵敏和潜在有效性等高线图。最后,将有效性轮廓图与三个实验测试条件进行了比较。

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