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Climeworks (2010) Journey toward Net Zero with Climeworks’ Carbon Removal Service.
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• TITLE: Capturing CO2 Emissions in the George C. Wallace Tunnel: A Case Study

  AUTHORS: Gabe Canitz, Cole Ciesta, Klint Green, Justin Sanders, Jason Valencia, Jeremy Willingham, Daniel Fonseca

  KEYWORDS: CO2 Capture, Tunnel Ventilation, Air Flow Analysis, Jet Fan Sizing

  JOURNAL NAME: Intelligent Control and Automation, Vol.15 No.3, August 27, 2024

  ABSTRACT: This paper describes the design of a ventilation system to be paired with a carbon capture system. The ventilation system utilizes the geometry of the George C. Wallace tunnel, located in the City of Mobile, Alabama, USA to capture and redirect emissions to a direct air capture (DAC) device to sequester 25% of the total CO2 mass generated from inside the tunnel. The total CO2 mass rate for the westbound traffic between the week-day hours of 7 a.m. and 6 p.m. has been estimated between 2,300 to 3,000 lbs./hr. By sequestering these emissions, the overall surrounding air quality was shown to be improved to a level that mirrors that from the pre-US industrial era of 270 ppm.