文献类型：会议论文

英文题名：Performance optimization of solar multi-stage flash desalination process using Pinch technology

作者：Hou, Shaobo[1,2];Zhang, Zhongjin[1];Huang, Zhongzhou[1];Xie, Aixia[1]

机构：[1]Guangdong Ocean Univ, Coll Engn, Guangdong 524006, Peoples R China;[2]NW Polytech Univ, Sch Power & Energy, Xian 710072, Peoples R China

会议论文集：Conference on Desalination and the Environment

会议日期：APR 22-25, 2007

会议地点：Halkidiki, GREECE

语种：英文

外文关键词：MSF; solar desalination; performance optimization; pinch technology

外文摘要：This paper presents a performance optimization of solar multi-stage flash (MSF) desalination process using Pinch technology. Three different situations were studied by using pinch analysis in this paper, respectively. Firstly, the distilled water is not discharged in each middle stage. Secondly, the distilled water is discharged in each stage. Thirdly, the distilled water is discharged every 5 stages. Pinch charts at different situations are given. At the same stage temperature difference (2 k) and pinch point temperature difference (2 k), the first situation has a higher gain output rate (GOR), about 17.5, and the second and third have lower GOR, around 9. However, GOR is easily influenced by abnormal stage temperature difference at the first situation, and but not in the second and third. The GOR rests on the working temperature range of MSF and the sum of both the maximum stage temperature difference and pinch point temperature difference. To enhance the GOR, it is suggested that we should use the wide working temperature range of MSF, not pumped out the distilled water at middle stages, and keep the same stage temperature difference without fluctuate.