Research on Film Insulation Technology for Artificial, Open Water Delivery Canals Based on Solar Heat Radiation Utilization

Yi Wang, Chen Zhang, Zhengzhong Wang, Xun Zhu, Zhengyin Cai and Haoyuan Jiang
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Yi Wang: Nanjing Hydraulic Research Institute, Nanjing 210024, China
Chen Zhang: Nanjing Hydraulic Research Institute, Nanjing 210024, China
Zhengzhong Wang: College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Xianyang 712100, China
Xun Zhu: Nanjing Hydraulic Research Institute, Nanjing 210024, China
Zhengyin Cai: Nanjing Hydraulic Research Institute, Nanjing 210024, China
Haoyuan Jiang: College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling, Xianyang 712100, China

Sustainability, 2022, vol. 14, issue 9, 1-12

Abstract: A measure of insulation film floating on the water surface was put forward to solve the problems of ice damage to water delivery canals during the winter operation period in cold regions. Firstly, a circulating flume test system was designed in an indoor radiation- and temperature-controlled environment. Secondly, five groups of comparative tests were carried out according to different application scenarios. Lastly, combined with the experimental data, the radiative degree-day method was used to calculate the ice thickness growth under the film. The results show that, in a sufficient radiation condition, a membrane can effectively melt the canal ice and prevent ice formation. In a limited radiation condition, a membrane can delay the ice sealing time and reduce the ice thickness, avoiding ice thrust damage to canal lining. The ice thickness growth formula can predict the development process of water and ice thickness under this technique. The research provides certain theoretical guidance and practical significance for the combination of solar thermal technology and water delivery engineering in cold regions.

Keywords: long-distance water conveyance project; cold region; ice thickness prediction; solar thermal technology; laboratory test (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2022
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