| 直热式太阳能海水淡化系统的热经济学优化 |
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| 引用本文： | 田禾,张于峰,江菊元,王培勋,刘力健.直热式太阳能海水淡化系统的热经济学优化[J].天津大学学报(自然科学与工程技术版),2008,41(4):494-498. |
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| 作者姓名： | 田禾 张于峰 江菊元 王培勋 刘力健 |
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| 作者单位： | [1]天津大学环境科学与工程学院,天津300072 [2]天津理工大学自动化学院,天津300191 [3]天津出入境检验检疫局,天津300042 |
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| 基金项目： | 国家高技术研究发展计划(863计划) |
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| 摘 要： | 为了提高直热式太阳能海水淡化系统的设计与操作，对该系统进行了热经济学优化分析．通过最小年度化热经济成本获得了系统最优化操作参数．同时讨论了进入闪蒸室的热海水温度、环境温度、蒸发器级数对年度化热经济成本的影响．结果表明：当进料海水流量为10055kg／a、闪蒸温度为60℃、蒸发器间温差为5℃时，可得到最小年度化热经济成本为1725．03￥／a；年度化热经济成本随进入闪蒸室的海水温度的升高而增加，随环境温度的升高而降低，随蒸发器级数的增多而降低．
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| 关 键 词： | 海水淡化 太阳能 热经济学 直热式 优化 |
Thermoeconomic Optimization of Direct-Heated Solar Seawater Desalination System |
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| TIAN He,ZHANG Yu-feng,JIANG Ju-yuan,WANG Pei-xun,LIU Li-jian.Thermoeconomic Optimization of Direct-Heated Solar Seawater Desalination System[J].Journal of Tianjin University(Science and Technology),2008,41(4):494-498. |
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| Authors: | TIAN He ZHANG Yu-feng JIANG Ju-yuan WANG Pei-xun LIU Li-jian |
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| Institution: | TIAN He, ZHANG Yu-feng, JIANG Ju-yuan, WANG Pei-xun, LIU Li-jian ( 1. School of Environmental Science and Engineering, Tianjin University, Tianjin 300072, China; 2. School of Electrical Engineering, Tianjin University of Technology, Tianjin 300191, China; 3. Tianjin Entry-Exit Inspection and Quarantine Bureau, Tianjin 300042, China ) |
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| Abstract: | To improve the design and operation of direct-heated solar seawater desalination system, a thermoeconomic optimization of the system was presented. The optimum operation parameters were obtained by minimizing the annual thermoeconomic cost. Besides, the effects of hot seawater temperature into flashing chamber, ambient temperature and evaporator number on annual therrnoeconomic cost were discussed. The results show that when the flow of intake seawater is 10 055 kg/a, flash temperature is 60 ℃ and the temperature difference between two adjacent evaporators is 5 ℃, the minimal annual thermoeconomic cost is 1 725.03 ￥/a. The annual thermoeconomic cost mounts up with the rising of seawater temperature into flashing chamber, and declines with the increasing of ambient temperature and evaporator number. |
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| Keywords: | seawater desalination solar energy thermoeconomic direct-heated optimization |
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