溶液除湿能力强化

Enhancement of liquid dehumidification ability

利用溶液除湿的制冷空调系统有着非常积极的节能意义,但与固体吸附除湿相比,溶液吸收除湿暴露了它除湿能力较差的缺点,这使它的应用普及受到了一定程度上的抑制。为了提高溶液除湿能力,本文介绍了从除湿器和除湿溶液两个方面进行改进的研究结果:利用固体吸附剂对溶液除湿器表面进行了处理;利用混合溶液作为溶液除湿剂。本文利用电解质溶液理论对LiCl和CaCl2为代表的混合溶液进行了相关热物性的研究,并提出了选择理想溶液除湿剂及其合适配比的解决方案;进行了相应的除湿实验:实验结果揭示了改进的除湿器不仅从增大除湿面积方面对溶液除湿能力强化有所贡献,还可能存在着吸附势叠加的功效;混合溶液的使用使得溶液除湿能力相对于使用单种溶液大大提高。

The energy-saving. air-conditioning systems utilizing liquid-dehumidification are playing a positive role in However, the expectation of wider application is frustrated due to the poor dehumidification effect compared to the solid-dehumidification system. To enhance the liquid dehumidification ability, this presents paper the research from two sides： improvement of the dehumidifier by introducing solid adsorbent on its surface; and the use of mixed solution as liquid desiccant. The electrolyte theory was used to investigate the thermal properties of the liquid desiccant in order to select an ideal liquid desiccant and its mixing ratio. The related experiments were carried out, and the results showed that the improved dehumidifier contributed to the capability enhancement not only thanks to the area enlargement but also the possible superposition of adsorption potentials. On the other hand, the mixed solution greatly improved the dehumidification effect compared to the case of using a single liquid desiccant.