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Use of solar energy for desalination by membrane distillation installation equipped with helically coiled fibers

机译：通过配备螺旋盘绕纤维的膜蒸馏装置将太阳能用于海水淡化

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The aim of this work was to evaluate the effect of solar irradiation on the permeate flow rate produced by vacuum membrane distillation installation. The used membrane module, in our case, is composed of two hollow fibers membrane wound in helically coiled shape. These fibers were placed in parabolic through concentrator absorber. The relatively hot solution (brine) in the absorber was used as a feed for our fibers. After the establishment of the model governing equations, a resolution was done with the finite element method. The sensitivity of the permeate flow rate to the solar irradiation and feed salt concentration were all investigated. According to the results, when the solar irradiation growth from 200 to 800 W/m, the permeate flow rate roses from 0.1377 to 0.3633 kg/h. In the case of a solar irradiation of 800 W/m, a marginal effect of the feed salt concentration on the permeate flow rate was remarked. For the evolution of the feed salt concentration between 10 and 300 g/l, a drop by 12% of the permeate flux was reported.
机译：这项工作的目的是评估太阳辐射对真空膜蒸馏装置产生的渗透物流量的影响。在我们的情况下，所使用的膜组件由两根中空纤维膜组成，它们缠绕成螺旋状。这些纤维通过集中器吸收器放置在抛物线中。吸收器中相对较热的溶液（盐水）用作我们纤维的进料。建立模型控制方程后，使用有限元方法进行了解析。考察了渗透流量对太阳辐射的敏感性和进料盐浓度。根据结果​​，当太阳辐射从200 W / m增长到800 W / m时，渗透流量从0.1377 kg / h上升到0.3633 kg / h。在800 W / m的日光照射下，进料盐浓度对渗透流量的边际效应显着。为了使进料盐浓度在10至300 g / l之间变化，据报道渗透通量下降了12％。

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