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本文介绍了一种基于热化学变压解吸-变温吸附原理的低品位热能变温储能新技术及系统,并针对以MnCl_(2-)NaBr-NH_3为工质对的试验系统进行了实验研究。当外界高温热源的温度为121℃,模拟的被加热的热用户为150℃,外界环境温度为15℃,蒸发温度为55℃时,对应的储能效率为0.302。理论分析和实验结果表明:基于变压解吸-变温吸附的热化学复合吸附储能技术能够有效提升热能品位并为外界提供所需要的热量,将其用于低品位热能的存储及品位提升是可行的,进而为低品位热能的综合利用提供了一种新的思路。
In this paper, a new technology and system of low temperature energy storage and temperature change based on thermochemical pressure swing desorption and temperature swing adsorption is introduced. The experimental system of MnCl_ (2-) NaBr-NH_3 working medium pair is also studied. When the temperature of the high temperature heat source is 121 ℃, the simulated heat user is 150 ℃, the ambient temperature is 15 ℃ and the evaporation temperature is 55 ℃, the corresponding energy storage efficiency is 0.302. The theoretical analysis and experimental results show that the thermochemical complex adsorption energy storage technology based on pressure swing desorption and temperature swing adsorption can effectively improve the thermal energy grade and provide the outside world with the required heat, which is feasible for low-grade thermal energy storage and grade upgrading , And then provides a new idea for the comprehensive utilization of low-grade thermal energy.