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All-in-one air conditioning system with MXene catalyst-based H2O and CO2 adsorption.

Number: 1306

Author(s) : SHIN J. Y., YOON D. S., KANG Y. T.

Summary

This study proposes an integrated air conditioning system to address air quality control and limitations in natural ventilation due to thermal energy loss and high particulate matter levels. The system integrates a heat pump with natural refrigerant capture rotors, including an H2O adsorbent-coated rotor and a CO2 composite adsorbent-coated rotor, utilizing MXene as a catalyst. It challenges the efficacy of conventional HVAC systems in maintaining adequate indoor CO2 levels in urban settings, prompting the need for alternative approaches. The developed composite adsorbent supports low regeneration temperatures between 50°C and 60°C, compared to commercial adsorbents, which require temperatures above 70°C. Analysis via Field Emission Scanning Electron Microscopy (FE-SEM) and Energy Dispersive X-ray Spectroscopy (EDS) assessed the material’s morphology and surface composition material. Thermogravimetric Analysis (TGA) evaluated the CO2 adsorption-desorption capacities, revealing a significant reduction of 36.9% in activation energy, which enhances desorption rates at lower temperatures. The performance of this system presents an effective method to sustain indoor air quality, providing a beneficial alternative to traditional adsorbent-coated wheels, particularly in regions with elevated particulate matter.

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Pages: 7 p.

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Details

  • Original title: All-in-one air conditioning system with MXene catalyst-based H2O and CO2 adsorption.
  • Record ID : 30032777
  • Languages: English
  • Subject: Technology
  • Source: 16th IIR-Gustav Lorentzen Conference on Natural Refrigerants (GL2024). Proceedings. University of Maryland, College Park, Maryland, USA, August 11-14 2024
  • Publication date: 2024/08
  • DOI: http://dx.doi.org/10.18462/iir.gl2024.1306

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