Performance comparison and suitable climatic zones of three water-mediated evaporative cooling technologies

Yang, Jianxun; Xie, Xiaoyun; Jiang, Yi

doi:10.1016/j.enconman.2022.116637

Cited by 7 publications

(1 citation statement)

References 28 publications

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“…With the improvement of living standards, the energy consumption attributed to air-conditioning has rapidly increased to a share of 15% of total building energy usage, and it is expected to reach 30% by 2050 [1][2][3][4][5]. In pursuit of carbon peak and carbon neutrality targets, it is imperative to reduce carbon emissions from air-conditioning [6][7][8][9].…”

Section: Introductionmentioning

confidence: 99%

Numerical Analysis on Performance Improvement of a Vertical Plate Indirect Evaporative Cooler with Baffles

Zhou,

Cheng,

Wang

et al. 2024

Energies

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The performance of the Plate Indirect Evaporative Cooler (PIEC) can be effectively improved by incorporating baffles in the dry channel. However, in the dimensional influence of the baffles on PIEC performance there remains a research gap. In order to investigate the impact of baffle dimensions on the wet bulb efficiency, namely the average heat transfer coefficient and the cooling capacity of the PIEC, this paper proposed and verified a three-dimensional numerical model and method based on the species transport model and the Euler wall film model. At the same time, in order to obtain the equilibrium point between the enhanced heat transfer performance and the additional resistance induced by baffles, a comprehensive performance evaluation index is introduced. The results indicate that, under the same conditions, (1) the baffle effect on PIEC performance is significant at a lower inlet air velocity, and the wet bulb efficiency of the PIEC with baffles can be improved by 22.8%; (2) the baffle effect on PIEC performance is negative if its relative length exceeds 60% or the primary air inlet velocity surpasses 4 m/s under the conditions specified in this paper; and (3) the baffle effect on PIEC performance is significant when its channel height is lower and its channel width is larger, and the wet bulb efficiency of the PIEC with baffles can be improved by 29.3%.

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