Project Summary:

This project aims to enhance analytics for next-generation Leak Detection and Quantification (LDAQ) solutions by improving data collection and analytical methodologies. While hardware capabilities and deployment strategies have advanced significantly, the effectiveness of LDAQ is currently limited by data analytics challenges. By developing autonomous mobile methane measurement units (AMMMUs) and conducting comprehensive field tests in both controlled and complex environments, the project seeks to generate high-quality datasets and validate atmospheric dispersion models. These efforts will support the refinement of precision requirements, improve model accuracy, and facilitate wider adoption of LDAQ technologies.


Project Outcomes

The primary objective of this project is to improve methane detection analytics through the design, deployment, and testing of autonomous mobile measurement units and advanced atmospheric dispersion models. Specifically, the project aims to:

  • Determine the necessary complexity of atmospheric dispersion models to accurately simulate emissions in various environments.
  • Define the precision, accuracy, and sampling rate requirements for methane concentration measurements to detect unexpected events.
  • Develop validated methodologies and protocols for top-down methane quantification that can be widely adopted by industry.

The anticipated outcome is a deeper understanding of model and sensor requirements across various emission scenarios, resulting in validated models, field-tested measurement platforms, and publicly available data and documentation.


Timeline

Gantt chart timeline of mobile unit project. Refer to table below for data.
TaskTimeframe
Stakeholder EngagementOctober 2024 - November 2024
Design Initial AMMMU (Unit 1)November 2024 - January 2025
Build AMMMU Unit 1December 2024 - March 2025
Deploy & Test AMMMU Unit 1 at METECMarch 2025 - 2026 and beyond
Building AMMMU Unit 2February 2025 - May 2025
Deploy AMMMU Unit 2 (Satellite Test Site)June 2025 - 2026 and beyond
Build AMMMU Unit 3May 2025 - August 2025
Deploy AMMMU Unit 3 (Pipeline Test Site)September 2025 - 2026 and beyond
Gather Large Data SetsApril 2025 - 2026 and beyond

Deliverables

Design and Build Autonomous Mobile Methane Measurement Units (AMMMU)
• Eight fully functional AMMMUs
• Specifications for AMMMU instrumentation and housing design
• Selection and integration of multiple methane sensors and meteorological instruments
• Establishment and documentation of communication infrastructure (cellular/satellite)
• Reports detailing part selection, procurement, calibration, and performance
• Technical Advisory Team (TAT) assembly and guidance documentation
METEC-Based Testing
• Field deployment and data collection at METEC under controlled emission scenarios
• Test reports for multiple AMMMU deployment scenarios (single/multiple sources, varying heights)
• Maintenance and troubleshooting logs of AMMMUs
• Published dataset and documentation on a public repository (e.g., Mountain Scholar)
Dispersion Model Testing
• Identification and evaluation of up to four dispersion modeling approaches
• Model performance assessments based on METEC-collected data
• Comparison of predicted vs. actual methane concentrations and emission patterns
• Documentation of protocols, modeling assumptions, and evaluation metrics
Complex Field Site Testing
• Field testing and data collection from aerodynamically complex locations (e.g., compressor stations, gas plants)
• Continuous updates and maintenance logs of AMMMUs in complex settings
• Evaluation of model and measurement performance in diverse real-world conditions
• Final report summarizing model suitability and precision requirements across sites
General Project Deliverables
• Peer-reviewed papers and public reports outlining methodology, limitations, and proposed improvements
• Protocol recommendations for industry-wide methane quantification
• Centralized, real-time database with Quality Control/Quality Assurance checks and alerts
• Final synthesis report detailing lessons learned, recommendations, and deployment guidance


METEC Mobile Project Updates

  • April 2025: Deploy initial unit at METEC for validity testing.
  • November – April: Design and build initial unit.
  • October 2024: METEC staff conducted listening sessions among industry experts to gather feedback concerning AMMMU design and analytical dispersion modelling data. Read the summary report.
Scientists reviewing a mobile sensor unit

Publications

Design, Build and Initial Testing of a Portable Methane Measurement Platform. (2025). Stuart Riddick, et. al. Sensors

Funding Provided by:

  • US Department of Energy – DE-FE0032276