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两级多效太阳能增湿除湿苦咸水淡化装置的性能研究

DOI: 10.15918/j.tbit1001-0645.2015.01.006

Keywords: 太阳能苦咸水淡化 增湿除湿 多效

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Abstract:

基于增湿除湿(HDD)的原理,设计了一种两级多效太阳能苦咸水淡化装置,用电加热水箱模拟太阳能集热器,对该装置进行了性能研究,目的是了解装置产水性能及效率. 试验中,给出了装置在不同加热温度、苦咸水进水流量以及补水流量下的各测点温度变化和淡水产量,并理论分析了苦咸水进水流量对装置产水量的影响,与试验结果进行了对比,得到了不同进水流量下的装置性能系数(GOR). 研究结果表明,系统产水量随苦咸水进水流量和加热温度增加而增大,在苦咸水进水流量为1 000 kg/h时,装置产水量可以达到63.55 kg/h. 由于该装置多次利用了湿空气的凝结潜热以及排浓盐水所含的显热,其性能系数在加热温度为85 ℃时,最大可以达到1.98. 且装置性能系数的理论计算值和试验测试值吻合较好

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