化工学报Issue(9)：3366-3374,9.DOI:10.3969/j.issn.0438-1157.2014.09.008
大型低温多效蒸发海水淡化装置传热过程热力损失分析
Analysis of thermodynamic losses of heat transfer process in large-scale LT-MED desalination plant
摘要
Abstract
Based on correlations of flow resistance and sea water boiling point elevation (BPE) applicable to the low-temperature multiple effect distillation (LT-MED) desalination plant, the thermodynamic losses in a large-scale LT-MED desalination plant were calculated and analyzed, including the distribution and proportion of various thermodynamic losses caused by BPE and flow resistances. The effect of the number of evaporator/condenser on thermodynamic losses was studied. The result indicates that, for a large-scale LT-MED desalination plant with constant production capacity, the total thermodynamic losses increases with the number of effects. The thermodynamic loss caused by BPE constitutes the highest proportion while that by the flow resistances can not be ignored. According to the analysis on the loss, the operating characteristics of LT-MED desalination system are summarized as small temperature difference, low pressure drop, saturation states and high sensitivity.关键词
海水淡化/多效蒸发/传热/热力学过程/热力损失/沸点升高/工作特征Key words
desalination/multiple effect evaporation/heat transfer/thermodynamic process/thermodynamic loss/boiling point elevation/operating characteristic分类
能源科技引用本文复制引用
沈胜强,周士鹤,牟兴森,郭亚丽..大型低温多效蒸发海水淡化装置传热过程热力损失分析[J].化工学报,2014,(9):3366-3374,9.基金项目
国家自然科学基金重点项目（51336001）；高等学校博士学科点专项科研基金项目（20110041110032）。@@@@supported by the Key Program of the National Natural Science Foundation of China (51336001) and the Research Fund for the Doctoral Program of Higher Education of China (20110041110032) （51336001）
