Abstract
Direct air capture (DAC) is a critical technology for mitigating climate change. However, the high heat consumption of temperature vacuum swing adsorption (TVSA)-based DAC processes hinders its widespread deployment. This study focuses on developing a control strategy to optimize the energy efficiency of the TVSA heating phase. A novel adsorbent temperature estimation method, validated through experimental data, was integrated into a cascaded PI controller with a fuzzy gain scheduler (FGS). Experimental results demonstrate that the proposed control strategy effectively regulates the heating process, achieving a potential energy saving of up to 14%. This work contributes to enhancing the feasibility and sustainability of DAC technologies.
Original language | English |
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Article number | 120745 |
Journal | Chemical Engineering Science |
Volume | 301 |
DOIs | |
Publication status | Published - 5 Jan 2025 |
MoE publication type | A1 Journal article-refereed |
Keywords
- Adsorbent temperature estimation
- Carbon capture, utilization and storage
- Direct air capture
- FGS-based PI-control