This work investigates the hourly operation of the Uçkan configuration of the desiccant system that uses ground and solar energies in combination. In this system, the ground source heat exchanger (GSHE) is used as a cooling component after the desiccant wheel (DW) (post-cooler) together with using simultaneously before (pre-cooler) and after the DW. The validity of this configuration is evaluated in several hot-humid regions, and an economic assessment is performed to confirm the system cost-feasibility. This study examines the impact of the return air ratio on the level of thermal comfort established, system COP, energy consumed for regeneration, and solar fraction (SF). Here, a guideline for sizing various components in the system is demonstrated. For the best scenario in which the GSHE is placed before and after the DW, the system would successfully provide thermal comfort for 95% of its working time, using low energy consumption when compared to conventional configurations. The best scenario resulted in the highest COP of 0.43, the highest SF of 63.6%, and the payback period of 6.8 years. With the results, increasing the return air ratio promotes system COP and SF, while it decreases the consumed energy.

中文翻译：

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通过无地源冷却提高太阳能辅助干燥剂冷却系统的冷却潜力

这项工作研究了结合使用地面和太阳能的干燥剂系统的Uçkan配置的每小时运行情况。在该系统中，将地源热交换器（GSHE）用作除湿轮（DW）（后冷却器）之后的冷却组件，并同时使用DW的之前（预冷却器）和之后。在几个湿热地区评估此配置的有效性，并进行经济评估以确认系统的成本可行性。这项研究检查了回风比对所建立的热舒适水平，系统COP，再生所消耗的能量以及太阳能分数（SF）的影响。在此，说明了确定系统中各个组件的大小的准则。对于将GSHE放置在DW之前和之后的最佳方案，与传统配置相比，该系统将以低能耗成功地在其95％的工作时间内提供热舒适性。最好的情况是，最高COP为0.43，最高SF为63.6％，投资回收期为6.8年。结果，增加回风比可以提高系统COP和SF，同时减少能耗。