Reference Experiment Validation for Field Carbon Removal Measurement
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Solution Overview
Problem
The challenge of providing a robust and validated measure for carbon dioxide removal (CDR) in terrestrial enhanced weathering processes, particularly in large-scale operations, where existing methods face challenges in scalability, accuracy, and efficiency due to variations in soil conditions and the need for frequent sampling.
Innovation Solution
A method involving a reference experiment setup in controlled conditions, allowing for in-situ measurements and sample collection, followed by a consistency check with field data to validate CDR measures, using multiple experiment types to ensure accuracy and robustness.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If liquid phase measurements are used to directly evidence bicarbonate formation, then measurement precision is improved, but device complexity and operational complexity increase due to frequent sampling requirements and additional equipment
Solution Approach 1:
The patent introduces a reference experiment as an intermediary system that mediates between the complex liquid phase measurements and the field deployment. The reference experiment provides controlled conditions for measuring bicarbonate formation, which then serves as a basis for validating field measurements, thereby reducing the complexity of direct field measurements while maintaining precision.
Solution Approach 2:
The patent creates a simplified copy of the field conditions in the reference experiment. By replicating the essential characteristics of field conditions in a controlled setting, the system allows for precise measurements that can be used to validate field data without requiring complex measurement systems in the field itself.
2Ease of operation
If solid phase measurements are used for time-integrated CDR estimation, then ease of operation is improved with annual sampling, but measurement precision deteriorates due to lack of direct evidence and potential overestimation
Solution Approach 1:
The patent implements a feedback mechanism where the reference experiment continuously provides validation information for field measurements. The reference experiment measures bicarbonate formation directly and uses this information to feedback-correct solid phase measurements, ensuring that ease of operation does not compromise measurement precision.
Solution Approach 2:
The patent replaces the mechanical sampling and analysis system with a chemical validation approach. Instead of relying solely on physical sampling frequency, the system uses chemical measurements of bicarbonate formation in the reference experiment to validate and correct solid phase measurements, thereby maintaining precision without increasing operational complexity.
3Measurement precision
If multiple reference experiments are conducted to validate field measurements, then measurement precision is improved, but loss of time and resources increase
Solution Approach 1:
The patent segments the validation process into distinct reference experiments that can be conducted independently and in parallel. By dividing the validation into separate experimental units, the system can optimize each segment for specific measurement purposes while reducing the total time required compared to a single comprehensive experiment.
Solution Approach 2:
The patent applies partial action by conducting reference experiments that measure only the essential parameters needed for validation (bicarbonate formation) rather than all possible parameters. This selective measurement approach reduces the time and resources required while maintaining sufficient precision for validating field measurements.
4Ease of operation
If field measurements are performed with minimal sampling frequency, then ease of operation is improved, but reliability deteriorates due to insufficient data for validation
Solution Approach 1:
The reference experiment serves as an intermediary that bridges the gap between minimal field sampling and reliable validation. It provides the additional data needed to ensure reliability without requiring frequent field sampling, thereby maintaining ease of operation while improving reliability.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enables a validated CDR measure with reduced sampling frequency and complexity, ensuring accuracy and reliability in large-scale CDR operations by bridging the gap between field and controlled conditions.
Implementation Method 1
Terrestrial enhanced weathering is a promising candidate for cost effective and save CDR. This approach involves the acceleration of natural weathering processes via the deployment of crushed rock feedstocks, typically Ca- and Mg-rich silicates, in soils.
Implementation Method 2
a measure for the amount of carbon dioxide removed from the atmosphere by a reactant deployed on a field
Implementation Method 3
Some parameters from liquid measurements, e.g. the amount of dissolved inorganic carbon and the pH-value, can however change due to an outgassing of CO 2 , once the liquid sample is extracted, when the liquid is not perfectly sealed within an enclosed space.
Data Source
Figure 1
Figure 2~3
AI summary
Method for providing a validated measure (1) for the amount of carbon dioxide removed from the atmosphere by a reactant (2) deployed on a field (3), comprising the steps of: setting up at least one reference experiment (4-7) of a respective experiment type (8-11); analyzing a respective field sample taken from at least one field sampling location (12) in the field (3) and/or performing at least one measurement in-situ at the respective field sampling location (12) to determine a field test result (13) that depends on the amount of carbon dioxide removed from the atmosphere by the reactant (2) at the at least one field sampling location (12); analyzing at least one reference sample taken from the respective reference experiment (4-7) and/or performing at least one measurement in-situ in the respective reference experiment (4-7) to determine a respective reference test result for the respective experiment type (8-11); evaluating a consistency condition (15), wherein a fulfilment of the consistency condition (15) depends on the field test result (13) and the respective reference test result; and providing the validated measure (1) for the amount of carbon dioxide removed from the atmosphere by the reactant (2) deployed on the field (3), when the consistency condition (15) is fulfilled, wherein the validated measure (1) depends on the field test result (13) and/or the respective reference test result.