Refractometer-Based Fermentation Monitoring for Sugar and Alcohol Control
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Solution Overview
Problem
Current methods for monitoring and controlling fermentation in alcohol production are cumbersome, time-consuming, and imprecise, particularly for determining sugar and alcohol content, which can lead to delayed detection of fermentation disturbances.
Innovation Solution
A method utilizing a portable refractometer to measure the refractive index of fermentation products, allowing for rapid determination of sugar and alcohol content, combined with a base station for data processing and temperature control to regulate the fermentation process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If manual areometric measurement is used to determine sugar content, then the method is simple and inexpensive, but the measurement is time-consuming (10-15 minutes) and imprecise with increasing alcohol content
Solution Approach 1:
The patent replaces the mechanical areometric measurement system with a refractometric measurement system that uses optical principles. The refractometer measures the refractive index of the fermentation liquid, which correlates with sugar content and alcohol concentration. This substitution eliminates the need for manual areometer operations and provides faster, more accurate readings that remain reliable even at high alcohol contents.
Solution Approach 2:
The patent changes the measurement parameter from density (areometric) to refractive index (refractometric). By measuring the refractive index instead of density, the system achieves measurements that are both faster and maintain accuracy across the full range of alcohol concentrations, resolving the contradiction between measurement speed and precision.
2Ease of manufacture
If hydrometers are used to measure sugar content, then the equipment is simple, but the measurement becomes increasingly imprecise as alcohol content increases during fermentation
Solution Approach 1:
The patent replaces the hydrometer (mechanical density measurement device) with a refractometer (optical measurement device). The refractometer measures the refractive index, which is not significantly affected by alcohol content in the same way density is. This maintains measurement simplicity while ensuring accuracy throughout the fermentation process, even at high alcohol concentrations.
3Measurement precision
If fully automatic measuring systems are used to indirectly measure sugar and alcohol online, then measurement precision is improved, but the system becomes very expensive
Solution Approach 1:
The patent introduces a refractometer as an intermediary measurement device that provides accurate sugar and alcohol data without requiring complex online sensing systems. The refractometer serves as a cost-effective bridge between simple manual methods and expensive automated systems, delivering reliable measurements through periodic sampling and refractive index analysis.
Solution Approach 2:
The patent uses the refractometer to create accurate copies or representations of the fermentation state through refractive index measurements. These measurements provide sufficient information to track sugar consumption and alcohol production without requiring direct, complex online sensors in the fermentation tank, thereby reducing system cost while maintaining measurement precision.
4Device complexity
If areometric measurement is performed manually, then equipment cost is low, but only one measured value per day can be created due to time requirements
Solution Approach 1:
The patent replaces the time-consuming mechanical areometric measurement process with a rapid refractometric measurement system. The refractometer provides results in seconds rather than minutes, enabling multiple measurements per day to be performed with the same level of equipment simplicity. This increases productivity while maintaining low device complexity.
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
This approach enables efficient, accurate, and automated monitoring of fermentation processes, allowing for early detection of disturbances and improved quality control in alcohol production.
Implementation Method 1
a refractive index of the fermentation product is measured at time intervals using a portable refractometer and a current sugar content of the fermentation product is determined on the basis of this measurement
Data Source
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AI summary
The invention relates to a method for monitoring fermentation of a fermentation substance in which the fermentation process is monitored and a temperature of the fermentation substance is determined, the fermentation process being controlled by influencing the temperature of the fermentation substance.