As a technology of the green energy utilization, solar adsorption cooling is a promising way to make use of the solar energy in the future. Aiming to the efficiency improvement of such kind system, the performance of the solar adsorption cooling system that employed the silica gel-water as the working pair was evaluated experimentally. With a mono-axial solar collector of tracking parabolic trough to provide the heat supply to the adsorption bed, the effect of the adsorption time on the system performance was mainly addressed in the study. The experimental results revealed that the performance of the system reached the maximum as the adsorption time was 45 min. Correspondingly, the coefficient of performance of the system reached 0.258. In addition, a comparison of the optimal performance of the silica gel system to the SAPO-34 zeolite system was conducted. It was revealed that both the cooling capacity and the performance coefficient of the silica gel system depended more strongly on the adsorption time than those of the SAPO-34 zeolite system did. At the optimal adsorption time, the coefficient of performance of the silica gel system was 1.93 times as that of the SAPO-34 zeolite system. In general, the silica gel-water pair has shown better performance as compared to the SAPO-34 zeolite-water pair as used in the solar adsorption cooling system.

作为绿色能源利用的技术，太阳能吸附冷却是未来利用太阳能的一种有前途的方式。针对这种系统的效率提高，以硅胶-水为工作对的太阳能吸附冷却系统的性能进行了实验评估。通过跟踪抛物线槽的单轴太阳能收集器为吸附床提供热量，本研究主要解决了吸附时间对系统性能的影响。实验结果表明，该系统的性能达到最大，吸附时间为45分钟。相应地，系统的性能系数达到0.258。此外，进行了硅胶系统与SAPO-34沸石系统最佳性能的比较。结果表明，与SAPO-34沸石体系相比，硅胶体系的冷却能力和性能系数对吸附时间的依赖性更大。在最佳吸附时间，硅胶系统的性能系数是SAPO-34沸石系统的1.93倍。通常，与太阳能吸附冷却系统中使用的SAPO-34沸石-水对相比，硅胶-水对表现出更好的性能。硅胶系统的性能系数是SAPO-34沸石系统的1.93倍。通常，与太阳能吸附冷却系统中使用的SAPO-34沸石-水对相比，硅胶-水对表现出更好的性能。硅胶系统的性能系数是SAPO-34沸石系统的1.93倍。通常，与太阳能吸附冷却系统中使用的SAPO-34沸石-水对相比，硅胶-水对表现出更好的性能。