Experimental investigation of a solar thermal-driven vacuum membrane distillation desalination system
An experimental desalination system coupling a vacuum membrane distillation(VMD)unit and a vacuum tube solar heat collection(SHC)unit was developed and tested.The parametric sensitivity of the VMD unit performance was investigated first using an electric heater as the heat source,and then the whole system was examined using solar heat.It was revealed that hot feed temperatures higher than 65°C and cold-side absolute pressure lower than 0.02 MPa are favorable for high trans-membrane flux.The startup time of the SHC-VMD system was very short,less than ten minutes.The VMD unit ran intermittently for 305 hours in five months,individually or together with the solar heat system,showing good suitability to unsteady solar energy and to the intermittent off-and-on operation mode.The average trans-membrane flux in the experiments of SHC-VMD combined system was about 4 kg/(m2 h),and the specific heat consumption was around 750 kWh/m3.
Solar thermal desalination Vacuum membrane distillation Seawater desalination
Yongqing Wang Zhilong Xu Noam Lior Hui Zeng
Cleaning Combustion and Energy Utilization Research Center of Fujian Province,Jimei University,Xiame Department of Mechanical Engineering and Applied Mechanics,University of Pennsylvania,Philadelphia,U
国际会议
桂林
英文
1-12
2013-07-16（万方平台首次上网日期，不代表论文的发表时间）