Energy saving potential of liquid desiccant in evaporative-cooling-assisted 100% outdoor air system
Energy saving potential of liquid desiccant in evaporative-cooling-assisted 100% outdoor air system
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DOI：
10.1016/j.energy.2013.07.018
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发表时间：
2013-09
期刊：
影响因子：
9
通讯作者：
Min-Hwi Kim;Junseok Park;Jae-Weon Jeong
中科院分区：
文献类型：
--
作者：
Min-Hwi Kim;Junseok Park;Jae-Weon Jeong
本文的主要目的是建议将液体除湿系统集成到蒸发冷却辅助的100%新风系统中。对液体除湿系统在间接式和直接式蒸发冷却器运行中的影响进行了详细的能量模拟。通过使用TRNSYS16和商业方程求解程序进行的一系列能源模拟，预测了该系统相对于传统的VAV(可变风量)系统的节能潜力。定量评价了水侧自由冷却和太阳能供热系统对液体除湿系统运行节能的影响。模拟结果表明，与传统的变风量空调系统相比，该系统的制冷能耗降低了51%，这主要是由于采用了水侧自由冷却来保持液体除湿系统的吸收塔温度。用于再生干燥剂溶液的太阳能热水系统也有助于减少运行能量。
The primary goal of this paper is to suggest integration of a liquid desiccant system into an evaporative-cooling-assisted 100% outdoor air system. Detailed energy simulation is performed for estimating the impact of the liquid desiccant system in indirect and direct evaporative cooler operations. The energy saving potential of the proposed system versus a conventional VAV (variable air volume) system is predicted via a series of energy simulations using TRNSYS 16 and a commercial equation solver program. Impact of water-side free cooling and solar thermal system on the operating energy saving of the liquid desiccant system is quantitatively evaluated. Simulation results showed that the proposed system consumes 51% less cooling energy compared to the conventional VAV system; primarily due to the water-side free cooling in maintaining the absorber temperature of the liquid desiccant system. The solar water heating system for regenerating the desiccant solution also contributes to the reduction in operating energy.