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Analysis of different applications of Maisotsenko cycle heat exchanger in the desiccant air conditioning systems

机译：Maisotsenko循环热交换器在干燥剂空调系统中的不同应用分析

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摘要

A numerical analysis of the different arrangements of the desiccant air conditioning systems with the cross-flow Maisotsenko cycle heat and mass exchanger (HMX) is presented. Mathematical models used in the simulations of the desiccant wheel, rotary heat exchanger and HMX are based on the s-NTU-model theory. The simulations were performed under assumption that the desiccant wheel is regenerated with air heated to the relatiVely low temperature values (50-60 C), which can be produced with solar panels in typical moderate climatic conditions. It was established that the main advantage of the novel solutions is that they can provide comfort condition even with less effective dehumidification. The different systems were compared under variable selected operational factors (i.e. inlet Air temperature and humidity and regeneration air temperature). The general comparison allowed establishing advantages and disadvantages of presented systems. First system was the simplest solution and it showed the lowest temperature effectiveness, but its construction allowed for keeping the thermal comfort in conditioned space regardless of the inlet parameters. The second system showed highest temperature effectiveness, but it was sensitive on the exhaust air parameters. The third system showed higher temperature effectiveness than System 1 and lower than System 2, when all systems supplied the same amount of air to the conditioned space. It also allowed obtaining significantly higher cooling capacity than first and second arrangement, when all systems dehtmidified the same airflow. The main disadvantage of System 3 was its complicated structure and sensitivity on outdoor humidity. In too humid outdoor conditions, this solution could not provide thermal comfort. Using the established data, the modifications of the System 3 were presented. This solution combines the advantages of all compared systems and they eliminate their disadvantages. They allow operating with high efficiency, minimal energy and water consumption and provide thermal comfort regardless on the outdoor conditions. Therefore, this solution has the highest potential of implementation. (C) 2017 Elsevier B.V. All rights reserved.
机译：给出了带有交叉流麦索森科循环热质交换器（HMX）的干燥剂空调系统不同布置的数值分析。模拟干燥剂轮，旋转式换热器和HMX的数学模型基于s-NTU模型理论。在假设干燥剂轮通过加热到相对较低的温度值（50-60 C）的空气进行再生的前提下进行，该温度值可以在典型的中等气候条件下用太阳能电池板生产。已经确定，新解决方案的主要优点是即使在除湿效果不佳的情况下，它们也可以提供舒适的条件。在选择的可变操作因素（即进气温度和湿度以及再生空气温度）下比较了不同的系统。总体比较可以确定所提出系统的优点和缺点。第一个系统是最简单的解决方案，它显示出最低的温度效率，但是其结构允许在调节空间中保持热舒适性，而与进口参数无关。第二个系统显示出最高的温度效率，但对排气参数敏感。当所有系统向调节后的空间供应相同量的空气时，第三个系统显示出比系统1更高的温度有效性，而低于系统2。当所有系统都对相同的气流除湿时，它还可以获得比第一和第二种布置更高的冷却能力。系统3的主要缺点是其结构复杂且对室外湿度敏感。在室外潮湿的环境下，该解决方案无法提供热舒适性。使用已建立的数据，对系统3进行了修改。该解决方案结合了所有比较系统的优点，并消除了它们的缺点。无论室外条件如何，它们都可以高效运行，最小的能源和水消耗，并提供热舒适性。因此，该解决方案具有最大的实施潜力。 （C）2017 Elsevier B.V.保留所有权利。

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  • 来源
    《Energy and Buildings》 |2017年第4期|154-170|共17页
  • 作者

    Pandelidis Demis; Anisimov Sergey; Worek William M.; Drag Pawel;

  • 作者单位

    Wroclaw Univ Technol, Dept Environm Engn, 27 Wyspianski St, PL-50370 Wroclaw, Poland;

    Wroclaw Univ Technol, Dept Environm Engn, 27 Wyspianski St, PL-50370 Wroclaw, Poland;

    SUNY Stony Brook, Coll Engn & Appl Sci, Dept Mech Engn, 127 Engn Bldg, Stony Brook, NY 11794 USA;

    Wroclaw Univ Technol, Fac Elect, Dept Control Syst & Mechatron, 27 Wyspianski St, PL-50370 Wroclaw, Poland;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Renewable energy; Indirect evaporative cooling; Desiccant system; Maisotsenko cycle;

    机译：可再生能源;间接蒸发冷却;干燥剂系统;马伊佐申科循环;

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