低品位热能驱动的盐差能发电装置中逆电渗析电堆的设计
赵佳悦
（山西能源学院，山西 晋中 030600）
摘要： 80 ℃以下的热能由于品位过低，无法被传统的技术手段所利用。结合以低品位热能（80 ℃以下） 驱动的基于
溶液盐差能的发电装置，对逆电渗析电堆进行了模型建立和电堆尺寸计算。设计中，浓、稀溶液隔室厚度分别为0.2 mm，
0.1 mm。通过计算得出浓、稀溶液隔室的宽度对RED 的功率密度并无影响，但浓、淡溶液隔室的长度对RED 整体发电
性能有明显影响，还计算了RED 电堆单元数，应采用多个RED 电堆并联的方法，来增加装置的整体发电功率。
关键词： 低品位热能；逆电渗析电堆；盐差能
中图分类号： TK11⁺4     文献标识码： A     文章编号： 2095-0802-(2021)04-0063-03
Design of Reverse Electrodialysis Stack in Salt Differential Energy Power Device Driven by
Low-grade Thermal Energy
ZHAO Jiayue
(Shanxi Institute of Energy, Jinzhong 030600, Shanxi, China)
Abstract: The heat energy below 80 益cannot be used by traditional technical means due to its low grade. Combined with a
power generation device driven by low-grade thermal energy (below 80 ℃) based on the salt differential energy of solution, this
paper established the reverse electrodialysis stack model and calculated the stack size. In the design, the thickness of the
concentrated and dilute solution compartments is 0.2 mm and 0.1 mm respectively. It is calculated that the width of the concentrated
and dilute solution compartment has no effect on the power density of RED, but the length of the concentrated and weak
solution compartment has a significant impact on the overall power generation performance of RED. The number of stack cells in
RED was also calculated. Multiple REDs in parallel should be used to increase the overall power generation of the device.

Key words: low-grade thermal energy; reverse electrodialysis stack; salt differential energy