Modeling and Optimization of a Solar-Driven System Coupled with Liquid Dehumidification and Absorption Refrigeration Based on Advanced Exergy and Exergoeconomic Analyses
Modeling and Optimization of a Solar-Driven System Coupled with Liquid Dehumidification and Absorption Refrigeration Based on Advanced Exergy and Exergoeconomic Analyses
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DOI：
10.1021/acssuschemeng.3c01827
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发表时间：
2023-05
期刊：
影响因子：
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通讯作者：
Aixiang Xu;Yizhang Wang;Lanxiang Yang;Xin Luo;Tingting Song;Zhiqiang Liu;Sheng Yang
中科院分区：
文献类型：
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作者：
Aixiang Xu;Yizhang Wang;Lanxiang Yang;Xin Luo;Tingting Song;Zhiqiang Liu;Sheng Yang
提出了一种新型混合系统，将液体除湿与太阳能驱动的吸收式制冷相结合。对系统进行传统和先进的火用和火用经济分析，以确定每个组件的不可逆程度和潜在改进。基于先进的火用和火用经济分析，获得了空气湿度、段温度和制冷温度对系统总火用破坏和成本率的影响。选取系统总可避免火用破坏率、可避免火用破坏成本率和可避免投资成本率作为目标函数，采用非支配排序遗传算法-II进行优化。结果表明，总火用破坏率和总火用破坏成本率分别达到262.39 kW和8.563 $/h。发电机和再生器的不可逆整个系统的成本率较高，分别达到 3.536 美元/小时和 2.430 美元/小时。吸收塔在整个系统中投资成本率最高。系统内源部分的火用破坏和成本率远高于外源部分。多目标优化结果表明，可避免的总火用破坏率和火用破坏成本率的最优值为50.99kW和1.60$/h，分别比单目标优化计算值低4.15%和9.14%。这项研究提供了利用太阳能进行除湿和制冷的潜在方法。
A novel hybrid system coupled liquid dehumidification with absorption refrigeration driven by solar energy is proposed. Traditional and advanced exergy and exergoeconomic analyses of the system are conducted to ascertain the degree of irreversibility and potential improvement for each component. Based on the advanced exergy and exergoeconomic analyses, the effects of air humidity, segment temperature, and refrigeration temperature on the total exergy destruction and cost rates of the system are obtained. The total avoidable exergy destruction rate, avoidable exergy destruction cost rate, and avoidable investment cost rate of the system are selected as objective functions and optimized by using nondominated sort genetic algorithm-II. The results show that the total exergy destruction rate and the total exergy destruction cost rate reach 262.39 kW and 8.563 $/h, respectively. The generator and regenerator have higher cost rates of the irreversibility overall system, achieving the values 3.536 and 2.430 $/h, respectively. The absorber has the highest investment cost rate in the whole system. The endogenous parts of the exergy destruction and cost rates are much higher than the exogenous parts in the system. Multiobjective optimization results show that optimal values for the total avoidable exergy destruction rate and the exergy destruction cost rate are 50.99 kW and 1.60 $/h, which are 4.15 and 9.14% lower than those calculated by single-objective optimization, respectively. This study provides a potential way to utilize solar energy for dehumidification and refrigeration.