Air Conditioner Fish-Like Odor Detection and Reproduction Method
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Solution Overview
Problem
Air conditioners often emit offensive odors, such as a fish-like odor, due to unknown compounds, making it difficult to address the underlying cause and improve indoor air quality.
Innovation Solution
A method for detecting and analyzing compounds contributing to fish-like odor from air conditioners, involving gas collection and analysis using techniques like GC/MS, and reproducing the odor using identified compounds like ammonia, acetaldehyde, and toluene to create a corresponding composition.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If gas collection and analysis methods are used to identify odor-causing compounds, then measurement precision is improved, but device complexity increases
Solution Approach 1:
The patent segments the complex odor analysis problem into distinct steps: gas collection from air conditioner, separation of volatile compounds, and identification of specific odor-causing substances. This segmentation allows each step to be handled with appropriate simplified methods, reducing overall device complexity while maintaining measurement precision for the target odor compounds.
Solution Approach 2:
The patent uses gas chromatography as an intermediary technique to separate and identify the complex mixture of volatile organic compounds. This intermediary method enables precise detection of specific odor-causing compounds without requiring direct analysis of the entire complex gas mixture, thus improving measurement precision while managing device complexity through a standardized analytical approach.
2Measurement precision
If multiple compounds are analyzed to identify fish-like odor sources, then measurement precision is improved, but loss of time increases
Solution Approach 1:
The patent performs preliminary gas collection and concentration of volatile organic compounds before detailed analysis. By preparing the sample in advance and concentrating the target compounds, the subsequent identification process is accelerated, reducing the time required for precise measurement of multiple odor-causing compounds while maintaining measurement precision.
Solution Approach 2:
The patent focuses analysis on a targeted subset of volatile organic compounds known to contribute to fish-like odor, rather than analyzing every possible compound. This partial action approach identifies the key odor-causing substances efficiently, achieving sufficient measurement precision for practical odor control purposes without the time cost of exhaustive analysis of all potential compounds.
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
Identifies and quantifies the compounds causing fish-like odor, allowing for the reproduction of the odor and providing data for odor removal methods, effectively addressing the odor issue in air conditioners.
Implementation Method 1
analyzing the components of the gas
Implementation Method 2
analyzing the components of the gas
Data Source
AI summary
A method that identifies the compounds contributing to a fish-like odor from an air conditioner and artificially reproduces the fish-like odor, and prepares a corresponding fish-like odor composition. Through the analysis method of the present invention, the compounds contributing to the fish-like odor from an air conditioner are identified and quantified. The fish-like odor is reproduced from a combination of the compounds identified by the analysis method of the present invention. The reproduced fish-like odor provides significant data required for development of an apparatus and a method for removing specific odor.