Numerical modelling of flow and coupled mass and heat transfer in an adsorption process

Scale formation is a longstanding and unresolved problem in a number of fields, including power production, petroleum exploration, thermal desalination, and construction. Herein, a high‐temperature scale‐resistant slippery lubricant‐induced surface (HTS‐SLIPS) is developed by one‐step electrodeposition and lubricant infusion. The fractal cauliflower‐like morphology with lubricant oil is conducive to forming an ultralow contact angle hysteresis of ≈1°. The 10‐d real‐world boiling trial indicates that by replacing the uncoated surface with HTS‐SLIPS, the reduction in scale mass is greater than 200% because of the low surface free energy (4.3 mJ m−2) and outstanding smoothness (Ra = 41 ± 8 nm) of HTS‐SLIPS. Thanks to the scale retardation, the bubble departure frequency of HTS‐SLIPS is eightfold higher than that of uncoated surfaces, signifying superior heat transfer efficiency. In these demonstrations, HTS‐SLIPS coated spiral tube exhibits better flowability and lower pressure drop than the uncoated one. In addition, favorable compatibility between HTS‐SLIPS and mechanical vibration is experimentally verified to strengthen the descaling of SLIPS synergistically. It is anticipated that the simple and scalable coating fabrication approach will be applicable in numerous industrial high‐temperature processes where scale formation is encountered.

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Nature‐Inspired High Temperature Scale‐Resistant Slippery Lubricant‐Induced Porous Surfaces (HTS‐SLIPS)

Yao

Lin

Wang

et al. 2022

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Numerical investigation of mass transfer characteristics for the desiccant-coated dehumidification wheel in a dehumidification process

Lin

Bai

et al. 2019

Applied Thermal Engineering

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Numerical modelling and parametric study of an air-cooled desiccant coated cross-flow heat exchanger

Lin

Zeng

Huang

et al. 2020

Applied Thermal Engineering

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Numerical modelling of flow and coupled mass and heat transfer in an adsorption process

Cited by 30 publications

References 11 publications

Nature‐Inspired High Temperature Scale‐Resistant Slippery Lubricant‐Induced Porous Surfaces (HTS‐SLIPS)

Nature‐Inspired High Temperature Scale‐Resistant Slippery Lubricant‐Induced Porous Surfaces (HTS‐SLIPS)

Numerical investigation of mass transfer characteristics for the desiccant-coated dehumidification wheel in a dehumidification process

Numerical modelling and parametric study of an air-cooled desiccant coated cross-flow heat exchanger

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