Conference Paper

Proceedings of SimBuild Conference 2024

     

Modelica-based Modeling and Simulation of an HVAC System Integrated with Direct Air Capture of CO2

Youmin Xu 1, Xu Han 1, Xiangkun Cao 2
1 University of Kansas, United States of America
2 Massachusetts Institute of Technology

Abstract: Direct Air Capture (DAC) is a rapidly evolving technology that extracts CO2 directly from ambient air. This study focuses on integrating DAC in HVAC systems to improve indoor air quality and energy efficiency by minimizing the ventilation rate. The DAC equipment is modeled in Modelica and validated with results from the literature, which is then integrated into a typical HVAC system in Modelica Buildings library. Three case studies are conducted to investigate its performance in a winter month under different scenarios. The results show that the energy can be reduced by 16.13% with DAC while the indoor air quality is improved.
Keywords: direct air capture, Modelica, heat ventilation air conditioning, indoors air quality
Pages: 715 - 724
Paper:

simbuild2024_2158