Performance Evaluation of a Maisotsenko Cycle Cooling Tower with Uneven Length of Dry and Wet Channels in Hot and Humid Conditions

Xuchen Fan, Xiaofeng Lu, Jiping Wang, Zilong Li, Quanhai Wang, Zhonghao Dong and Rongdi Zhang
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Xuchen Fan: Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education of China, Chongqing University, Chongqing 400044, China
Xiaofeng Lu: Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education of China, Chongqing University, Chongqing 400044, China
Jiping Wang: Yuanda Environmental Protection Science & Technology Branch, State Power Investment Corporation (SPIC), Chongqing 400012, China
Zilong Li: Yuanda Environmental Protection Science & Technology Branch, State Power Investment Corporation (SPIC), Chongqing 400012, China
Quanhai Wang: Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education of China, Chongqing University, Chongqing 400044, China
Zhonghao Dong: Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education of China, Chongqing University, Chongqing 400044, China
Rongdi Zhang: Key Laboratory of Low-Grade Energy Utilization Technologies and Systems, Ministry of Education of China, Chongqing University, Chongqing 400044, China

Energies, 2021, vol. 14, issue 24, 1-15

Abstract: The use of the Maisotsenko cycle (M-Cycle) in traditional wet cooling towers (TWCTs) has the potential to reduce the costs of electricity generation by cooling water below the inlet air’s wet-bulb temperature. TWCTs cannot provide sufficient cooling capacity for the increasing demand for cooling energy in the power and industrial sectors—especially in hot and wet climates. Due to this fact, an experimental system of an M-Cycle cooling tower (MCT) with parallel counter-flow arrangement fills was constructed in order to provide perspective on the optimal length of dry channels ( l dry ), thermal performance under different conditions, and pressure drops of the MCT. Results showed that the optimal value of l dry was 2.4 m, and the maximum wet-bulb effectiveness was up to 180%. In addition, the impact of air velocity in wet channels on the pressure drops of the novel fills was also summarized. This study confirms the great potential of using the M-Cycle in TWCTs, and provides a guideline for the industrial application and performance improvement of MCTs.

Keywords: Maisotsenko cycle; wet cooling tower; wet-bulb effectiveness; parallel counter-flow arrangement fills (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
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