摘要
为了避免热电集成膜蒸馏系统(TIMES)结构复杂,可靠性差,能耗高的缺点,提出了热电集成直接蒸馏式水净化系统,并通过实验对该系统进行了可行性验证和性能分析。与TIMES系统相比,直接蒸馏式水净化系统的能耗较低,净化水中无机盐成分较少;随着系统工作电流增大,系统产水率提高,但单位质量产水所消耗的能量(单耗)也增大;增加半导体热泵数量既可以提高系统的产水率也可以降低净化水的单耗;然而增大半导体热泵热端的液膜厚度会使系统的产水率降低且单耗增大。
A thermoelectric integrated direct distillation water purification system was designed to improve the disadvantages of the thermoelectric integrated membrane evaporation subsystem （TIMES） including the complex structure, high energy consumption, and instability. The feasibility and the capabilities of the system were analyzed experimentally. The energy consumption and the mineral salt concentration in the purified water are lower than with the TIMES system. In addition, the purified water production rate increased as the system working current was increased, which also increased the energy consumption per water production. Increasing the number of thermoelectric semiconductor pumps increased the water production rate while reducing the energy consumption per water production. Increase of the fluid film thickness on the hot side of the thermoelectric semiconductor pump reduced the system capability.
出处
《清华大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2008年第8期1368-1371,共4页
Journal of Tsinghua University(Science and Technology)
关键词
航天器
废水净化
直接蒸馏
半导体热泵
spacecraft
waste water purification
direct distillation
semiconductor thermoelectric pump
