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Open AccessArticle

A Novel Approach for Water Conservation and Plume Abatement in Mechanical Draft Cooling Towers

1
School of Electric Power, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
2
Institute of Engineering Thermophysics, North China University of Water Resources and Electric Power, Zhengzhou 450045, China
3
School of Environmental and Municipal Engineering, North China University of Water Resources and Electric Power, Zhengzhou 450046, China
*
Author to whom correspondence should be addressed.
Atmosphere 2019, 10(12), 734; https://doi.org/10.3390/atmos10120734
Received: 8 November 2019 / Revised: 17 November 2019 / Accepted: 19 November 2019 / Published: 22 November 2019
(This article belongs to the Section Air Quality)
While the visible plume from a cooling tower is not a pollutant, it can affect the surrounding environment. Moreover, the accompanied evaporation loss has a great potential for wastewater recovery. In the present study, a novel coupling technology for water conservation and plume abatement was proposed, and its feasibility was verified by using thermodynamic analysis. A surface-type heat exchanger was designed and a thermodynamic calculation model was established. Next, based on the principle of “no plume,” the effect of the number of heat exchanger units (N) and the circulating water volume (G) on the water conservation and plume abatement was evaluated under design condition. Results showed that the optimized parameters for the operation of the cooling towers were N = 8 and G < 3000 m3/h, which have a good effect on water conservation and plume abatement. Furthermore, as per the condensation calculation model, the average water conservation amount was 1.105 kg/s and the annual water conservation amount reached 2.8641 × 107 kg. View Full-Text
Keywords: cooling tower; coupling technology; plume abatement; water conservation cooling tower; coupling technology; plume abatement; water conservation
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MDPI and ACS Style

Wang, W.; Ge, X.; Zhao, S.; Zheng, H.; Xu, W.; Lv, J.; Zhu, G. A Novel Approach for Water Conservation and Plume Abatement in Mechanical Draft Cooling Towers. Atmosphere 2019, 10, 734.

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