Research on New Whitening and Water-Saving Technology Based on Industrial Equipment

Yufei Chai, Weiting Jiang () and Xin Zheng
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Yufei Chai: College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
Weiting Jiang: College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China
Xin Zheng: College of Energy and Mechanical Engineering, Shanghai University of Electric Power, Shanghai 200090, China

Energies, 2024, vol. 17, issue 5, 1-14

Abstract: Energy conservation and consumption reduction have always been the goals pursued by the power industry. Based on these goals, this study explored a new type of whitening and water-saving technology for industrial equipment. Unlike existing direct heating and condensation heating technologies, the main innovation of this work lies in not changing the saturated wet flue gas before it is discharged into the atmospheric environment. A series of experiments were conducted on electrode plates with different wind speeds, supersaturation levels, and porosities using three principles, namely droplet electrostatic adsorption, ionic-wind-enhanced condensation, and droplet dipole deflection, through the construction of a parameter-adjustable and -controllable enthalpy and humidity chamber and a pilot development platform with a wind volume of 10,000 m 3 /h. In addition, the collection efficiency was calculated using thermodynamic laws. The results showed that, under the working conditions of white mist supersaturation of 5.77 g/kg, a hole opening rate of 70%, and a wind speed of 3 m/s, the water collection efficiency was the highest—close to 60%—verifying the feasibility of this technology. This technology not only eliminates white smoke but also saves water resources and has certain economic benefits, providing support for the development of industrial equipment for smoke removal in the future.

Keywords: electrostatic defogging; whitening; water conservation; industrial equipment (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: 2024
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