Adsorption-based desalination and cooling system has gained particular interests for low-grade heat harvesting. In this study, field synergy analysis is conducted to illustrate the complicated heat and mass transfer characteristics in an adsorption-based desalination and cooling system with finned-flat beds via a dynamical three-dimensional computational fluid dynamics model. Two field synergy angles α and β reflecting the synergy effect of heat transfer and flow resistance with the adsorption driving force are examined. Results illustrate that smaller α and β result in better adsorption performance. Furthermore, guided by the field synergy analysis, adsorbent bed configurations (fin diameter, fin pitch, fin shape, and fin arrangement) are optimized. The fork-row arrangement results in a higher SCP and SDWP than that of the in-line arrangement. With the fin pitch of 20 mm and fin diameter of 12 mm, the system with fork-row arrangement demonstrates a SCP of 0.363 kW/kg and SDWP of 12.5 m³ per ton silica gel per day, which is 6.6% higher than that of the in-line arrangement as the field synergy parameter between heat transfer and the driving force factor (α) is more predominant at a relatively smaller fin pitch.

基于吸附的海水淡化和冷却系统在低品位热收集方面获得了特别的关注。在这项研究中，通过动态三维计算流体动力学模型，进行了场协同分析，以说明具有翅片平床的吸附式淡化和冷却系统中复杂的传热和传质特性。检查了反映传热和流动阻力与吸附驱动力的协同效应的两个场协同角α和β。结果表明，较小的 α 和 β 导致更好的吸附性能。此外，在场协同分析的指导下，优化了吸附床配置（翅片直径、翅片间距、翅片形状和翅片排列）。叉排布置导致比直列布置更高的 SCP 和 SDWP。每天每吨硅胶³，比直列式布置高 6.6%，因为在相对较小的翅片间距下，传热和驱动力因子 (α) 之间的场协同参数更占优势。