Solar desalination using humidification dehumidification processes. Part I. A numerical investigation
Solar desalination using humidification dehumidification processes. Part I. A numerical investigation
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DOI：
10.1016/s0196-8904(03)00151-1
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发表时间：
2004-05-01
影响因子：
10.4
通讯作者：
Soliman, AM
中科院分区：
文献类型：
--
作者：
Nafey, AS;Fath, HES;Soliman, AM
对太阳能增湿海水淡化过程进行了数值模拟研究. HDD系统主要由聚光太阳能热水集热器、平板太阳能空气集热器、除湿塔和除湿换热器组成。两个独立的循环回路构成HDD系统，第一个用于加热给水，第二个用于加热空气。建立了模拟HDD系统的数学模型，研究了不同系统配置、天气和操作条件对系统生产率的影响。通过比较同一作者的理论和实验结果，验证了模型的有效性。结果表明，所建立的数学模型的计算结果与实验结果和其他文献的结果吻合较好。结果还表明，该装置的生产率强烈影响的空气流量，冷却水流量和总太阳能入射通过一天。风速和环境温度变化对系统生产率的影响很小。此外，所获得的结果表明，太阳能集水器的面积强烈影响系统的生产率，更比太阳能空气集热器的面积。(C)2003 Elsevier Ltd.保留所有权利。
A numerical investigation of a humidification dehumidification desalination (HDD) process using solar energy is presented. The HDD system consists mainly of a concentrating solar water heating collector, flat plate solar air heating collector, humidifying tower and dehumidifying exchanger. Two separate circulating loops constitute the HDD system, the first for heating the feed water and the second for heating air. A mathematical model is developed, simulating the HDD system, to study the influence of the different system configurations, weather and operating conditions on the system productivity. The model validity is examined by comparing the theoretical and experimental results of the same authors. It is found that the results of the developed mathematical model are in good agreement with the experimental results and other published works. The results show also that the productivity of the unit is strongly influenced by the air flow rate, cooling water flow rate and total solar energy incident through the day. Wind speed and ambient temperature variations show a very small effect on the system productivity. In addition, the obtained results indicate that the solar water collector area strongly affects the system productivity, more so than the solar air collector area. (C) 2003 Elsevier Ltd. All rights reserved.