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针对毛细驱动海水淡化系统建立了热力学-水动力学分析模型,分别对不同热流密度、运行高度和蒸汽管线长度工况下的系统运行特性进行了模拟分析。模拟结果与实验测量结果吻合较好。当系统在热流密度为4.2~34.0kW/m~2较大的参数范围内运行时,系统产水量可达6.3~50.8 kg/(m~2·h),蒸发温度可低至29.3~39.8℃。结果表明,蒸发器的压力是影响系统运行的主要因素,其主要受蒸发器高度和蒸汽管线长度的影响,且前者的影响更大。
A thermodynamic-hydrodynamic model was established for the capillary-driven seawater desalination system. The system operating characteristics under different heat flux density, operating height and steam pipeline length were simulated. The simulation results agree well with the experimental results. When the system is operated with the heat flux of 4.2 ~ 34.0kW / m ~ 2, the water yield of the system can reach 6.3 ~ 50.8 kg / (m ~ 2 · h) and the evaporation temperature can be as low as 29.3 ~ 39.8 ℃ . The results show that the pressure of the evaporator is the main factor affecting the operation of the system, which is mainly affected by the height of the evaporator and the length of the steam pipeline, and the former has a greater impact.