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。
A triple-effect regeneration solar distiller with vertical plate and water reservoir was designed. Its operation parameters were measured under actual weather condition to obtain the temperature of whole day, water production rate and accumulated fresh water yield curves of the experimental system. The performance ratio of the experimental equipment was 1.35. The heat and mass transfer calculation model of the experimental system was built. Comparing the calculation model with the experimental data, the accuracy of the model was verified and experiment result was further analyzed. The energy flow in experimental system was analyzed. The results show that too much heat dissipating in system lead to low performance ratio of the system working in the actual weather condition. At last, the actual operation characteristics of solar desalination system are forecasted and evaluated after optimization to provide guidance for engineering application.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2016年第10期2619-2626,共8页
Acta Energiae Solaris Sinica
基金
国家自然科学基金(U1261119
51106177)
国家自然青年基金(51106101)
关键词
太阳能
传热
传质
蒸馏
竖壁
solar energy
heat transfer
mass transfer
distillation
vertical plate
