Mixture Ratio Calculation Using Multi-Temperature Thermal Conductivity
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Solution Overview
Problem
Existing devices are unable to uniquely determine the component ratios of mixtures containing three or more components based on thermal conductivity measurements, as the relationship between thermal property values and mixture ratios is not uniquely defined at a single temperature.
Innovation Solution
A mixture ratio calculation device that heats the fluid mixture to two different temperatures, detects thermal property values at each temperature, and uses relationship information to calculate the component ratios of the fluids by leveraging the constant mixture ratio of one fluid across both temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If thermal conductivity measurement is performed at a single temperature for a mixture containing three or more components, then the measurement process is simple, but the component ratio cannot be uniquely determined
Solution Approach 1:
The patent introduces temperature as an additional dimension to resolve the ambiguity in component ratio determination. By performing thermal conductivity measurements at multiple temperatures, the system transforms a single-temperature measurement problem into a multi-temperature analysis, enabling unique determination of component ratios in mixtures with three or more components through the temperature-dependent thermal property variations
2Measurement precision
If thermal conductivity measurement is performed at multiple temperatures to determine component ratios, then the component ratio can be uniquely determined, but the measurement process becomes complex
Solution Approach 1:
The patent utilizes changes in thermal conductivity parameters across different temperatures to enable component ratio determination. By measuring thermal conductivity at multiple temperatures and analyzing the temperature-dependent variations, the system can uniquely identify component ratios in complex mixtures, transforming an unsolvable single-temperature problem into a solvable multi-temperature analysis
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 the calculation of component ratios in mixtures with three or more components by utilizing thermal property values measured at different temperatures, effectively resolving the ambiguity in single-temperature measurements.
Implementation Method 1
a first heat generator (116, 118) configured to heat the mixture of fluids
Implementation Method 2
a basic information detector configured to detect basic information on a predetermined thermal property value of the mixture of fluids
Data Source
AI summary
A first heat generator heats a mixture of fluids to a first temperature. A predetermined thermal property value of the mixture set to the first temperature is obtained, the first heat generator heats the mixture to a second temperature, the thermal property value of the mixture set to the second temperature is obtained. First relationship information between the thermal property value of the mixture set to the first temperature and a mixture ratio of a first fluid is obtained. Second relationship information between the thermal property value of the mixture set to the second temperature and the mixture ratio of the first fluid is obtained. Mixture ratios are calculated based on the thermal property value of the mixture set to the first temperature, the thermal property value of the mixture of fluids set to the second temperature, the first relationship information, and the second relationship information.