LOW-TEMPERATURE MULTI-EFFECT EVAPORATION DESALINATION SYSTEMS COUPLED WITH SALINITY-GRADIENT SOLAR PONDS
As part of a project investigating the productive use of saline land and the development of sustainable desalination systems, the production of potable water from seawater or brackish water using desalination systems powered by low-temperature solar-thermal sources, including salinity-gradient solar ponds, has been studied. A Visual Basic computer model of solar-powered multi-effect evaporation (MEE) desalination processes was developed to determine the technical and economic feasibility of the system. A small-scale three-effect evaporation desalination system powered by a solar pond, capable of producing up to 2,300 litres of fresh water per day, has been designed using the model. The system has been manufactured and commissioned, and has operated effectively at a first-effect vapour temperature of about 68℃, which is ideal for heat delivery from a solar pond. The key design and operating parameters controlling the cost of fresh water – distillate production, recovery ratio, thermal energy and solar collection area-are determined from the computer simulation and compared with experimental results.
Jimmy Leblanc John Andrews
School of Aerospace, Mechanical and Manufacturing Engineering RMIT University PO Box 71, Bundoora, Victoria, 3083, Australia
国际会议
2007世界太阳能大会(Proceedings of ISES Solar World Congress 2007)
北京
英文
2007-09-18（万方平台首次上网日期，不代表论文的发表时间）