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¹Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA. jajelinski@lbl.gov

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Area of Science:

Environmental Science
Chemical Engineering
Industrial Monitoring

Background:

Traditional glass column systems for monitoring rooftop stack emissions are complex and costly.
Existing methods for collecting hydrogen (H) and carbon (C) emissions can be inefficient and prone to leakage.

Purpose of the Study:

To develop a simple, efficient, and cost-effective replacement for traditional glass column emission monitoring systems.
To maintain or improve collection efficiency for H and C emissions, with leakage below 5%.
To reduce material costs and simplify the setup process for emission monitoring.

Main Methods:

A modified jar system was developed as an alternative to traditional glass columns.
Both the traditional and modified systems were operated concurrently for a 13-month period.
Collection efficiency and leakage rates were compared between the two systems.

Main Results:

The modified jar system demonstrated equivalent or improved collection efficiency for both H and C emissions.
Leakage rates were effectively managed, staying below the 5% target.
The new system significantly reduced material costs by nearly an order of magnitude.
Reduced leak-test errors and quicker, simpler setup were observed.

Conclusions:

The modified jar system is a viable, cost-effective, and efficient replacement for traditional glass column systems in monitoring H and C emissions.
This innovation offers practical advantages in terms of cost, efficiency, and ease of use for environmental monitoring applications.