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Holistic integration of multi-stage dew point counter flow indirect evaporative cooler with the solar-assisted desiccant cooling system: A techno-economic evaluation
Energy for Sustainable Development ( IF 5.5 ) Pub Date : 2021-05-06 , DOI: 10.1016/j.esd.2021.04.005
Rubeena Kousar , Muzaffar Ali , Nadeem Ahmed Sheikh , Syed Ihtsham ul Haq Gilani , Shahab Khushnood

This paper presents a detailed techno-economic assessment along with a performance analysis of various configurations of the solar-assisted desiccant air-cooling system. In holistic integration, multiple configuration variants of solar-assisted desiccant cooling system were considered involving: (1) direct evaporative cooler on both process and regeneration sides; (2) direct evaporative cooler on the process with counter flow indirect evaporative cooler on regeneration side, (3) counter flow indirect evaporative cooler on both process and regeneration sides and (4) direct evaporative cooler on the process side with regenerative side with any evaporative cooler. The technical assessment is carried out to evaluate the performances of all the considered solar-assisted desiccant cooling system configurations. In order to evaluate the economic viability, all setups were tested for a wide range of operating conditions with varying inlet air temperature, humidity, and solar radiation during 15 different selected days of the typical summer season to obtain actual and realistic estimates of systems performances. The seasonal testing results revealed that the first three configurations achieved maximum coefficient of performance values of 0.76, 0.99 & 1.85, and maximum energy efficiency ratio values of 7.19, 8.73, and 13.3, respectively. Utilizing the experimental data, the economic analysis indicates that the third configuration has the potential to save up to 62.9% energy cost compared to the conventional system with a payback period of 5.87 years.



中文翻译:

多级露点逆流间接蒸发冷却器与太阳能辅助干燥剂冷却系统的整体集成:技术经济评价

本文介绍了详细的技术经济评估以及对太阳能辅助干燥剂空气冷却系统各种配置的性能分析。在整体集成中,考虑了太阳能辅助干燥器冷却系统的多种配置变型,包括:(1)在过程和再生侧均采用直接蒸发冷却器;(2)过程中的直接蒸发冷却器,再生侧为逆流间接蒸发冷却器,(3)过程和再生侧的逆流间接蒸发器,以及(4)过程侧直接蒸发冷却器,再生侧为任何蒸发器凉爽的。进行了技术评估,以评估所有考虑的太阳能辅助干燥剂冷却系统配置的性能。为了评估经济可行性,在典型夏季的15个不同选定天中,对各种设置进行了测试,测试了各种设置的各种运行条件,以及进气温度,湿度和太阳辐射的变化,从而获得了系统性能的实际和实际估计。季节性测试结果表明,前三个配置分别实现了0.76、0.99和1.85的最大性能系数值以及7.19、8.73和13.3的最大能效比值。利用实验数据,经济分析表明,与传统系统相比,第三种配置有可能节省高达62.9%的能源成本,投资回收期为5.87年。在典型夏季的15个不同的选定日期内的湿度和太阳辐射,以获取对系统性能的实际和现实估计。季节性测试结果表明,前三个配置分别实现了0.76、0.99和1.85的最大性能系数值以及7.19、8.73和13.3的最大能效比值。利用实验数据,经济分析表明,与传统系统相比,第三种配置有可能节省高达62.9%的能源成本,投资回收期为5.87年。在典型夏季的15个不同的选定日期内的湿度和太阳辐射,以获取对系统性能的实际和现实估计。季节性测试结果表明,前三个配置分别实现了0.76、0.99和1.85的最大性能系数值以及7.19、8.73和13.3的最大能效比值。利用实验数据,经济分析表明,与传统系统相比,第三种配置有可能节省高达62.9%的能源成本,投资回收期为5.87年。季节性测试结果显示,前三个配置分别实现了0.76、0.99和1.85的最大性能系数值以及7.19、8.73和13.3的最大能效比值。利用实验数据,经济分析表明,与传统系统相比,第三种配置有可能节省高达62.9%的能源成本,投资回收期为5.87年。季节性测试结果显示,前三个配置分别实现了0.76、0.99和1.85的最大性能系数值以及7.19、8.73和13.3的最大能效比值。利用实验数据,经济分析表明,与传统系统相比,第三种配置有可能节省高达62.9%的能源成本,投资回收期为5.87年。

更新日期:2021-05-07
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