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| 太阳能直热式海水淡化系统热经济孤立化研究 | |
| 引用本文： | 田禾,张于峰,江菊元,崔明贤.太阳能直热式海水淡化系统热经济孤立化研究[J].中山大学学报(自然科学版),2009,48(5). |
| 作者姓名： | 田禾 张于峰 江菊元 崔明贤 |
| 作者单位： | 1. 天津大学环境科学与工程学院,天津,300072;天津理工大学自动化学院,天津,300191 2. 天津大学环境科学与工程学院,天津,300072 3. 天津理工大学自动化学院,天津,300191 |
| 基金项目： | 国家高技术研究发展计划(863计划)资助项目 |
| 摘 要： | 为了提高直热式太阳能海水淡化系统的设计与操作，运用热经济孤立化方法，对直热式太阳能海水淡化系统进行分析，获得了系统最优化操作参数。同时讨论了设备使用年限、最高海水温度、进料海水单价对年度化费用的影响。结果表明：当拉格朗日乘子分别为￥4.85/kJ、￥0.59/kJ、￥0.40/kJ、￥0.19/kJ时，系统实现热经济孤立化。此时，闪蒸温度为58.6 ℃，蒸发温度为35 ℃时，年度化费用为￥4 332.81/a。年度化费用随设备使用年限的增加而减小，随最高海水温度的升高而降低，随进料海水单价的升高而增加。 |
| 关 键 词： | 太阳能海水淡化 直热式 热经济 孤立化 |
| 收稿时间： | 2008-09-06; |
The Research of Thermo Economic Isolation on Direct Heated Solar Seawater Desalination System |
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| TIAN He,ZHANG Yufeng,JIANG Juyuan,CUI MIingxian.The Research of Thermo Economic Isolation on Direct Heated Solar Seawater Desalination System[J].Acta Scientiarum Naturalium Universitatis Sunyatseni,2009,48(5). | |
| Authors: | TIAN He ZHANG Yufeng JIANG Juyuan CUI MIingxian |
| Institution: | (1. School of Environment Science and Technology, Tianjin University，Tianjin 300072，China；2. School of Electrical Engineering, Tianjin University of Technology, Tianjin 300191, China) |
| Abstract: | Applied the method of thermo economic isolation, the direct heated solar seawater desalination system is analyzed to obtain the optimum operation parameters. Besides, the effects of equipment life, the highest seawater temperature and exergy price of feed seawater on annual cost were discussed. The results show that when Lagrange multipliers are ￥4.85/kJ, ￥0.59/kJ, ￥0.40/kJ and ￥0.19/kJ, the system's thermo economic isolation is realized. Flash temperature is 60 ℃, evaporation temperature is 35 ℃ and annual cost is ￥4 332.81/year under this condition. The annual cost declines with extending of equipment life and increasing of the highest seawater temperature and mounts up with rising of exergy price of feed seawater. |
| Keywords: | solar seawater desalination direct heated thermo economy isolation |
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