Multi-objective optimization of desiccant wheel via analytical model and genetic algorithm

被引:7
作者
Li, Heng-Yi [1 ]
Chen, Yu-Ren [1 ]
Tsai, Ming-Jui [1 ]
Huang, Tsair-Fuh [1 ]
Chen, Chun-Liang [1 ]
Yang, Sheng-Fu [1 ]
机构
[1] Inst Nucl Energy Res, Div Phys, Taoyuan City 325207, Taoyuan County, Taiwan
关键词
Desiccant wheel; Dehumidification; Genetic algorithm; Multi -objective optimization; DEHUMIDIFICATION; PERFORMANCE; SPEED;
D O I
10.1016/j.applthermaleng.2023.120411
中图分类号
O414.1 [热力学];
学科分类号
摘要
The dehumidification performance and energy consumption of desiccant wheel are affected by many design parameters and operating variables. However, there are few researches concerning multi-objective optimization. Therefore, an optimal design framework combining analytical model, multi-objective optimization and decision -making is proposed. The model was based on the overall heat and mass balances, so the objective functions of the desiccant wheel were derived, and the constraints for the equilibrium of the adsorption and desorption were obtained. Then, the non-dominated sorting genetic algorithm II (NSGA-II) was employed to calculate the Pareto optimal front of the two-objective optimization, and the results were analyzed with psychrometric chart. This solution set includes not only the optimum one with the design method of psychrometric charts, but also includes other better solutions. From the Pareto solutions, the final optimal solution was obtained with the technique for order preference by similarity to ideal solution (TOPSIS) based on four criteria. With the final optimal parameters applied to existing example, the further improvements on the outlet process air humidity ratio and the dehu-midification coefficient of performance were found.
引用
收藏
页数:11
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