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Technology

Smartphone Building Air Leakage Detector

Invention Reference Number

202405815
Female construction manager walking around site. Image from Envato

This invention adapts background oriented schlieren (BOS) imaging to directly visualize building leakage in a fast and easy manner. Recent advancements have implemented this technology within a smartphone, utilizing the existing camera and a custom application to provide real-time visualization of leaks. This innovative approach offers a practical and accessible solution for detecting leakage in buildings.

Description

This invention addresses the challenge of locating air leakage sites in buildings, which is commonly performed using a blower door to create a large pressure differential along with infrared imaging, smoke pencils, theatrical smoke, or manually feeling around penetrations for drafts. These conventional techniques can be time-consuming, disruptive to occupants, and often require significant expertise. The invention adapts background oriented schlieren (BOS) imaging technology to visualize building leakage effectively, offering a faster and more streamlined approach. Additionally, this technology has been integrated into a smartphone application that utilizes the existing camera to provide visualization of leaks.

Benefits

  • No need for large pressure differences: Eliminates the necessity for blower door setups by functioning effectively with or without high pressure differentials.
  • Utilization of existing equipment: Can leverage existing building systems, such as exhaust fans or HVAC units, to create a modest pressure difference.
  • User-friendly technology: Requires no specialized expertise, allowing anyone to use the system for direct visualization of air leakage.

Applications and Industries

  • Building and construction industry: Building energy audits and inspections to identify and visualize air leakage in residential and commercial structures.
  • HVAC sectors: Improvement of energy efficiency and indoor air quality, enhancing overall building comfort.

Contact:

To learn more about this technology, email partnerships@ornl.gov or call 865-574-1051.