Solar Desalination Based on MED: A Promising Alternative for Water Provision in the 21st Century
Combining solar energy and desalination process would generate a sustainable source of fresh water as well as energy. This combination is highly valued as it limits and reduces air pollutant emissions and green house gases generated by combustion of fossil fuels. The increasing of energy demand during the first half of this century is expected to continue, which will make the cost of renewable solar energy highly competitive against fossil fuels. Desalination has been relied on to provide fresh water for industries, cities and islands around the world. After a brief review of a number of novel cycles for combining solar energy and desalination, it is confirmed that solar desalination based on MED is a promising alternative for water provision in the 21st century, based on some discussion and comparison. An experiment system of solar desalination based on MED technology is designed, and the experiment system combines the solar energy collection system and a 5 effect distillation system, whose different effects of evaporators is stacked vertically to save the substantial pumping power. The operation characteristics are studied with an example of the solar desalination system with 10m3/d production. As the top brine temperature of LT-MED is below 70 °C. The conclusion shows that the combination of the LT-MED and the solar collector system is very promising with high efficiency.
Solar energy desalination multi-effect distillation horizontal tube falling film evaporation
Yong Yang Shengqiang Shen XingSen Mu Xue Chen Xiaohua Liu Guohai Dong
Key Laboratory for Desalination of Liaoning Province, Dalian University of Technology, Dalian, China Key Laboratory for Desalination of Liaoning Province, Dalian University of Technology, Dalian, China School of Hydraulic Engineering, Dalian University of Technology, Dalian, China
国际会议
The 7th International Conference on Fluid and Thermal Energy Conversion(第七届流动技术与热能转化国际会议 FTEC 2011)
郑州
英文
463-477
2011-09-24（万方平台首次上网日期，不代表论文的发表时间）