The Research on Thermal and Economic Performance of Solar Desalination System with Evacuated Tube Collectors
- 作者：Xiaohua LiuWenbo ChenShengqiang ShenMing GuGuojian Cao
- 会议时间：2012-06-26
- 关键词：Solar Desalination ; Evacuated Tube Collectors ; Low- Temperature Multi-effect Distillation(LT-MED) ; Heat Storage Tank ; Water Cost
- 作者单位：Key Laboratory of Ocean Energy Utilization and Energy Conservation of Ministry of Education,School of Energy and Power Engineering, Dalian University of Technology, Dalian, 116024, P.R. China
- 母体文献：2012青岛国际脱盐大会论文集
- 会议名称：2012青岛国际脱盐大会
- 会议地点：青岛
- 主办单位：中国金属学会
- 语种：chi
- 分类号：F27;P5
摘要
Conventional seawater desalination technology could solve the problem of fresh water shortage, but consumes a large amount of fossil fuel and causes the environmental problems such as global warming, acid rain, etc. On account of this, solar desalination is one of the promising methods. The thermal and economic performance on solar desalination system with evacuated tube collectors and low temperature multi-effect distillation is researched in this paper. Mathematical and economic models are established based on mass and energy conservation, which conclude evacuated tube collector model, heat storage tank model, flash tank model, multi-effect distillation model and electrical heating and cooling model. Taking actual operation into account, the influence of the area of evacuated tube collector and the outlet water temperature of evacuated tube collector on system performance is analyzed. The water cost is given out to appreciate the economic performance of the solar desalination system. The conclusions are helpful to the design and operation of solar desalination plant.