Performance evaluation of a novel design for the waste heat recovery of a cement plant incorporating a coal-fired power plant

Chen, Heng; Wang, Yihan; An, Liuming; Xu, Gang; Zhu, Xin; Liu, Wenyi; Lei, Jing

doi:10.1016/j.energy.2022.123420

Cited by 30 publications

(3 citation statements)

References 33 publications

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“… Engineers select materials that can survive the working conditions and probable adverse effects of the fluids based on the fluids' biochemical and thermal properties. For effective heat transfer, materials should also ensure adequate heat conductivity [10].  Sizing and Configuration: The exchanger that transfers heat must be properly sized to transport heat at the necessary rates.…”

Section:  Design and Selectionmentioning

confidence: 99%

Advancements in heat exchanger design for waste heat recovery in industrial processes

Anand Kishorbhai Patel

2023

World J. Adv. Res. Rev.

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Section:  Design and Selectionmentioning

confidence: 99%

Advancements in heat exchanger design for waste heat recovery in industrial processes

Anand Kishorbhai Patel

2023

World J. Adv. Res. Rev.

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“…The deep recovery of low-grade waste heat from flue gas can clearly improve the thermal efficiency of power plants, which benefits energy conservation and emission reduction during electricity generation. − Wet flue gas desulphurization has been extensively used in coal-fired power plants all over the world, which is mature, reliable, and applicable in industry with a high desulphurization efficiency. , After the desulphurization process, both flue gas and slurry contain abundant low-grade heat. , It is necessary to recover waste heat. The ordinary waste heat utilization technologies from flue gas are possibly confronted with some challenges such as complex systems, large investments, and increasing power consumption.…”

Section: Introductionmentioning

confidence: 99%

Experimental Study on the Erosion–Corrosion Characteristics of Desulfurization Slurry on Stainless Steel Pipe Materials

Fan,

Zhang,

Yuan

et al. 2024

ACS Omega

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The recovery of low-grade waste heat from power plants greatly benefits energy conservation and emission reduction during electricity generation, while the waste heat utilization directly from desulfurization slurry is a significantly promising method to deeply recover such low-grade energy and has been developed in practical application. However, the pipe materials are subjected to erosion and corrosion challenges due to the high level of solid compositions and the presence of harmful ions, such as Cl −1 , which requires further evaluation under the condition of slurry heat exchange. The present study aimed at an experimental study on the erosion−corrosion characteristics of desulfurization slurry on three types of stainless steel, including type 304, 316L, and 2205. Both mass loss and micromorphology features were analyzed with possible mechanisms elucidated. The erosion−corrosion rate is weak at low temperatures, while the increase in the slurry temperature clearly promotes its rate. The influence of the temperature on the corrosion resistance of 304 is much greater than that of 2205. With an increase in duration time, the weight loss rate of stainless steel in the desulfurization slurry declines, and the changing trend of metal mass slightly slows down. The present study offers a better understanding of the erosion−corrosion behaviors of three types of stainless steel under flow and heat transfer conditions of a desulfurization slurry.

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“…This means that the same fluid transfer equipment will work in locations with very different chloride concentrations. Industries, especially power plants, increasingly use recycled water to cope with scarcity constraints and sustainability needs [23][24][25][26][27][28]. The continuous water evaporation during the slag water cycle leads to changes in Cl − concentrations; these recycled waters often have a higher salt content than when they were first used.…”

Section: Introductionmentioning

confidence: 99%

Investigating the Corrosive Influence of Chloride Ions on Slag Recovery Machine Shells in Power Plants

Yu¹,

Bai

et al. 2023

Materials

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An effective strategy for achieving cost-effective and environmentally friendly desulfurization wastewater in coal-fired power plants involves the incorporation of desulfurization wastewater into the slag water system. The objective of this study was to analyze the corrosion behavior of Q235-A slag-picker shell material upon the introduction of FGD wastewater into the slag water system. The dynamic weight loss method, electrochemical testing method and microscopic phase characterization were employed to investigate the impact of varying chloride ion concentrations (ranging from 1000 mg/L to 30,000 mg/L) of flue gas desulfurization wastewater (FGD wastewater) on the corrosion of Q235-A slag-picker shell material. The test results indicate that as the concentration of chloride ions increases, the corrosion rate increases from 1.1487 mm/a to 1.5590 mm/a when the concentration is less than 10,000 mg/L. However, when the concentration exceeds 10,000 mg/L, the corrosion rate decreases from 1.559 mm/a to 1.0393 mm/a. The corrosion rate is above 1 mm/a at all concentrations. As the Cl− concentration, the quality of the corrosion product film initially increases and then decreases. The primary components of the corrosion product are α- FeOOH, γ-FeOOH, β-FeOOH, Fe3O4 and γ-Fe2O3.

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Performance evaluation of a novel design for the waste heat recovery of a cement plant incorporating a coal-fired power plant

Cited by 30 publications

References 33 publications

Advancements in heat exchanger design for waste heat recovery in industrial processes

Advancements in heat exchanger design for waste heat recovery in industrial processes

Experimental Study on the Erosion–Corrosion Characteristics of Desulfurization Slurry on Stainless Steel Pipe Materials

Investigating the Corrosive Influence of Chloride Ions on Slag Recovery Machine Shells in Power Plants

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