太阳能膜蒸馏淡化水系统运行优化

发布时间：2018-03-22 00:32

本文选题：优化　切入点：膜　出处：《农业工程学报》2017年06期 　论文类型：期刊论文

【摘要】：该文旨在优化太阳能膜蒸馏淡化水系统运行过程。采用试验手段确定了该系统的最佳运行工况,测试了最佳工况下该系统的运行效果,说明了系统运行过程的电力平衡情况。测试结果表明:呼和浩特地区该系统光热部分最佳循环流量为150 L/h;光伏光热系统以连续跟踪方式运行;热工质加热过程控制方法为,当辐照度低于500 W/m~2时仅开启光伏发电系统加热热工质,当辐照度介于500~700 W/m~2时采用光伏光热互补方式加热热工质,当辐照度大于700 W/m~2时仅开启光热系统加热热工质;该系统于最佳工况运行时平均膜通量为14.92 kg/(m~2·h),且系统可维持电力平衡;该系统于优化工况下运行时7组膜组件串联即可满足1个4口之家的饮水需求。系统于优化工况下运行,单位产水量所需的膜面积为0.067 m~2。该研究可为膜蒸馏淡化水系统应用研究提供一定参考。
[Abstract]:The purpose of this paper is to optimize the operation process of the solar membrane distillation desalination water system. The optimal operating conditions of the system are determined by means of experiments, and the operation effect of the system is tested under the optimum operating conditions. The test results show that the optimal cycle flow rate of the photothermal part of the system is 150 L / h, the photovoltaic photothermal system operates in a continuous tracking mode, and the method of controlling the heating process of the thermal working fluid is as follows. When the irradiance is less than 500W / m2, only the heating thermoplasm of photovoltaic power generation system is turned on, when the irradiance is between 50000W / m2 and 5007W / m2, the photothermal heating quality is heated by photovoltaic photothermal complementary method, and when the irradiance is greater than 700W / m2, only the heating thermo-quality of photothermal system is turned on. The average membrane flux of the system is 14.92 kg/(m~2 / h, and the system can maintain power balance, and the system can meet the drinking water demand of a family of 4 in series when the system is running under optimal operating conditions. The membrane area required per unit water yield is 0.067 mm2. This study can provide some references for the application of membrane distillation desalination water system.
【作者单位】：内蒙古工业大学能源与动力工程学院;风能太阳能利用技术教育部重点实验室;
【基金】：国家自然科学基金项目(51266007) 内蒙古科研创新项目(B20161012802Z)
【分类号】：P747.14

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