Generation Source Analyzing Device for Gas and Particle Emissions
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Solution Overview
Problem
Current methods for analyzing the source of particulate matter, such as PM 2.5, struggle to accurately determine the generation source of secondary generated particle components emitted as gases, as existing simulation and receptor models are inadequate for analyzing gas-emitted target components.
Innovation Solution
A generation source analyzing device and method that acquire concentration measurement values of gases and particle components, including precursor gases and secondary generated particles, to estimate the distance to the generation source based on concentration thresholds, wind speed, and correlation analysis, allowing for the differentiation between local and wide-area emission sources.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If a simulation model is used to analyze particulate matter generation sources, then analysis can be performed based on calculated values, but it cannot accurately determine the generation source of secondary generated particle components emitted as gases
Solution Approach 1:
The invention merges the simulation model approach with the receptor model approach by integrating calculated values with measurement values of particle component concentrations. This combination allows the system to accurately determine generation sources of secondary generated particle components while maintaining the ability to analyze both primary and secondary particles, thus resolving the contradiction between measurement precision and adaptability.
Solution Approach 2:
The analyzing device is designed to perform multiple functions: it can analyze both primary particle components and secondary generated particle components, and can handle both gas-phase and particle-phase pollutants. This multi-functionality enables accurate determination of generation sources for various types of pollutants including gas-emitted target components, thereby resolving the contradiction between precision and versatility.
2Measurement precision
If a receptor model is used to analyze generation sources based on measurement values, then particle component concentrations can be analyzed, but it is difficult to analyze generation sources of target components emitted as gases
Solution Approach 1:
The invention combines the receptor model's strength in analyzing measurement values with the simulation model's capability to handle gas-phase components. By integrating both approaches, the system can accurately determine generation sources of target components emitted as gases while maintaining high measurement precision for particle components.
Solution Approach 2:
The invention introduces an intermediary approach that uses both measured particle component concentrations and simulated gas concentration data to infer generation sources. This intermediary method bridges the gap between direct particle measurement and indirect gas source identification, enabling the system to analyze gas-emitted target components with high accuracy.
3Measurement precision
If only primary particle components are analyzed using the receptor model, then measurement-based analysis is achieved, but secondary generated particle components from gas precursors cannot be effectively traced
Solution Approach 1:
The invention performs preliminary analysis by measuring particle component concentrations and using these measurements to infer the presence and location of gas precursor sources. By analyzing secondary generated particles first, the system can backtrack to identify the original gas emission sources, thus preventing loss of information about precursor origins.
Solution Approach 2:
The system uses feedback from particle component concentration measurements to continuously refine the identification of gas precursor sources. The measured particle data provides feedback information that helps trace back to gas emission sources, ensuring that no information about precursor origins is lost while maintaining high measurement precision.
Data Source
AI summary
To analyze a generation source of a target component emitted in a form of a gas. To provide a generation source analyzing device comprising an acquiring section which acquires a concentration measurement value of a gas which includes a target component, and a concentration measurement value of a particle component which is generated in association with the gas, and an analyzing section which analyzes a distance from a measurement point to a generation source of the target component based on a concentration measurement value of the gas and a concentration measurement value of the particle component. The acquiring section may acquire a concentration measurement value of a precursor gas which becomes a raw material which generates the particle component, and a concentration measurement value of a secondary generated particle component which is generated from the precursor gas.