A state-of-the-art review of heat recovery steam generators and waste heat boilers

Arpit, S.; Das, P. K.

doi:10.1007/s12053-023-10179-5

Cited by 3 publications

(3 citation statements)

References 60 publications

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“…Broadly, the mixed gas adsorption isotherm data coupled with the high-temperature isotherms indicate that CALF-20 is well suited for steam regeneration which is appealing because of the availability of steam industrially. − For example, in one approach, after CO 2 is captured the bed could be heated and purged with steam to remove the CO 2 from the bed because CALF-20 has shown no changes in surface area due to exposure to water at temperatures as high as 175 °C and pressures of approximately 7 bar (Figure S4b). Before repeating the adsorption step, the bed could be cooled and purged with nitrogen .…”

Section: Resultsmentioning

confidence: 99%

Steam Isotherms, CO₂/H₂O Mixed-Gas Isotherms, and Single-Component CO₂ and H₂O Diffusion Rates in CALF-20

Hastings,

Lassitter,

Fylstra

et al. 2024

Ind. Eng. Chem. Res.

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has emerged as a metal−organic framework (MOF) that is steam-stable and exhibits selective CO 2 physisorption over water vapor, which makes it a candidate for industrial-scale CO 2 capture from flue gases. In this work, multicomponent CO 2 /H 2 O adsorption data show that the α-to-β phase transformation has little impact on the multicomponent CO 2 adsorption capacity of CALF-20. Also, H 2 O isotherms up to 175 °C reveal only limited changes in the water capacity as temperature increases above 45 °C. CO 2 and H 2 O single-component diffusion rates were measured via concentration swing frequency response. The results show that the diffusion rate of water through CALF-20 is similar to that of water diffusion in the highly water-permeable MOF-333, as well as BPL-activated carbon. The data provides key insight into the fundamental thermodynamic and mass transfer parameters that govern the separation of CO 2 and H 2 O using CALF-20 and provides quantified parameters that can be used to model adsorption systems based on CALF-20.

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Section: Resultsmentioning

confidence: 99%

Steam Isotherms, CO₂/H₂O Mixed-Gas Isotherms, and Single-Component CO₂ and H₂O Diffusion Rates in CALF-20

Hastings,

Lassitter,

Fylstra

et al. 2024

Ind. Eng. Chem. Res.

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“…where p 1 is a random locating [0, 1]. Random search: When |A| ≥ 1, whales search for optimization outside the contraction envelope and perform a random search.…”

Section: Modified Whale Optimization Algorithm With Sensitivity Const...mentioning

confidence: 99%

“…With more and more renewable energy sources, such as wind power and photovoltaics, integrating into the power grid, heat recovery boilers combing gas turbines with fast load response speed and environmental friendliness are playing crucial roles for the stability and safety of the power grid [1]. However, the drum water level, as the most important subsystem, is facing many challenges caused by fluctuations of the steam flow and feed water flow [2].…”

Section: Introductionmentioning

confidence: 99%

Active Disturbance Rejection Control Design with Sensitivity Constraint for Drum Water Level

Gao,

Cui

2024

Energies

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The drum water level plays a crucial role in the safety and economy of heat recovery boilers. However, the control of the drum water level faces many challenges, such as external disturbances and system uncertainties. To enhance the control performance of the drum water level, a modified active disturbance rejection control (MADRC) optimized with sensitivity constraint is proposed in this paper. Firstly, the control structure of the three-element control system for the drum water level is introduced and analyzed. Based on the regular active disturbance rejection control (ADRC) structure, the structure of the MADRC is introduced and the convergence of the proposed MADRC is proven. Then a modified whale optimization algorithm (MWOA) with sensitivity constraint is applied to optimize the parameters of the MADRC. With different sensitivity constraints, the parameters of the MADRC and comparative controllers are obtained, and their control performance for tracking and disturbance rejection abilities is compared. Moreover, the ability to handle system uncertainties is analyzed. Simulation results and performance indexes show that the proposed MADRC can obtain the best tracking and disturbance rejection abilities with satisfactory robustness. The satisfactory control performance shows that the proposed MADRC has wide application potential for heat recovery boilers and other industrial processes.

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Design and Simulation of Thermoelectric Generator to Recover Waste Heat of Chimney

Bashir,

Alkuraiee,

Rajpar

et al. 2024

Arab J Sci Eng

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A state-of-the-art review of heat recovery steam generators and waste heat boilers

Cited by 3 publications

References 60 publications

Steam Isotherms, CO₂/H₂O Mixed-Gas Isotherms, and Single-Component CO₂ and H₂O Diffusion Rates in CALF-20

Steam Isotherms, CO₂/H₂O Mixed-Gas Isotherms, and Single-Component CO₂ and H₂O Diffusion Rates in CALF-20

Active Disturbance Rejection Control Design with Sensitivity Constraint for Drum Water Level

Design and Simulation of Thermoelectric Generator to Recover Waste Heat of Chimney

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A state-of-the-art review of heat recovery steam generators and waste heat boilers

Cited by 3 publications

References 60 publications

Steam Isotherms, CO2/H2O Mixed-Gas Isotherms, and Single-Component CO2 and H2O Diffusion Rates in CALF-20

Steam Isotherms, CO2/H2O Mixed-Gas Isotherms, and Single-Component CO2 and H2O Diffusion Rates in CALF-20

Active Disturbance Rejection Control Design with Sensitivity Constraint for Drum Water Level

Design and Simulation of Thermoelectric Generator to Recover Waste Heat of Chimney

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Product

Resources

About

Steam Isotherms, CO₂/H₂O Mixed-Gas Isotherms, and Single-Component CO₂ and H₂O Diffusion Rates in CALF-20

Steam Isotherms, CO₂/H₂O Mixed-Gas Isotherms, and Single-Component CO₂ and H₂O Diffusion Rates in CALF-20