竖壁自储水式太阳能蒸馏装置运行特性分析

发布时间：2018-04-03 03:06

本文选题：太阳能　切入点：传热　出处：《太阳能学报》2016年10期

【摘要】：设计一台三效回热竖壁自储水式太阳能海水淡化装置。对其在实际天气下的运行参数进行测试,得到装置全天温度、产水率及累计产水量变化曲线,实验测试中装置性能系数为1.35。构建装置的传热传质计算模型,通过与实验数据对比验证模型的准确性并进一步对装置特性进行研究。利用所构建模型分析系统的能量流动情况,结果发现无效热能散失过大是装置在实际天气运行时性能系数偏低的主要原因。最后,对该类太阳能海水淡化系统经优化后的实地运行性能进行预测和评估,为工程应用提供指导。
[Abstract]:A three-effect vertical wall self-storage solar desalination system for seawater desalination was designed.The operating parameters in the actual weather are measured, and the variation curves of the whole day temperature, water production rate and cumulative water production are obtained. The performance coefficient of the device is 1.35 in the experimental test.The calculation model of heat and mass transfer of the device is constructed. The accuracy of the model is verified by comparing with the experimental data and the characteristics of the device are further studied.The energy flow of the system is analyzed by using the established model. It is found that the main reason for the low performance coefficient of the device in actual weather operation is the excessive loss of invalid heat energy.Finally, the field operation performance of this kind of solar desalination system is predicted and evaluated, which provides guidance for engineering application.
【作者单位】：四川大学水利水电学院;北京理工大学机械与车辆工程学院;
【基金】：国家自然科学基金(U1261119;51106177) 国家自然青年基金(51106101)
【分类号】：P747.14;TK51

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