Two-Mode Fluid Displacement for Beverage Brewing Extraction Control
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Solution Overview
Problem
Existing beverage brewing apparatuses face challenges in achieving optimal raw material extraction, particularly when using lower temperature liquids and high flow rates, which can result in suboptimal brewing results.
Innovation Solution
A method for controlling a fluid displacement assembly in a beverage brewing apparatus, involving a two-mode operation: a first mode for delivering a wetting volume of liquid at a higher flow rate to pre-wet the raw material, and a second mode at a lower flow rate for extended extraction, allowing for more controlled and prolonged extraction even at lower liquid temperatures.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Speed
If high flow rates are used to deliver liquid at lower temperatures, then brewing speed is improved, but raw material extraction quality deteriorates
Solution Approach 1:
The brewing process is divided into two distinct phases: a first phase with higher flow rate for initial wetting and a second phase with lower flow rate for extended extraction. This segmentation allows the system to achieve both fast brewing speed and high extraction quality by optimizing flow rate for each specific stage of the brewing process.
Solution Approach 2:
The system performs preliminary wetting of the raw material in the first phase before proceeding to the main extraction phase. This preliminary action ensures that the raw material is adequately prepared for extraction, allowing the second phase to focus on maximizing extraction quality with lower flow rates while maintaining overall brewing efficiency.
2Use of energy by stationary object
If lower temperature liquid is used, then energy consumption is reduced, but raw material extraction efficiency deteriorates
Solution Approach 1:
The system dynamically adjusts the flow rate during the brewing process based on the liquid temperature and extraction stage. By implementing variable flow rates that adapt to the specific conditions of each brewing phase, the system maintains high extraction efficiency with lower temperature liquids, reducing energy consumption while preserving productivity.
Solution Approach 2:
The system changes the flow rate parameter between two distinct phases to compensate for the lower liquid temperature. The first phase uses higher flow rate for wetting, and the second phase uses lower flow rate for prolonged contact time, thereby maintaining extraction efficiency without requiring high temperature liquids, thus reducing energy consumption.
3Manufacturing precision
If prolonged contact time is used to improve extraction, then extraction quality is improved, but brewing time increases
Solution Approach 1:
The brewing process employs periodic action with two distinct time periods: a first period with higher flow rate for rapid wetting and a second period with lower flow rate for extended extraction. This periodic structure allows the system to achieve prolonged contact time for high extraction quality while minimizing total brewing time by optimizing the duration and intensity of each phase.
Solution Approach 2:
The system maintains continuous useful action throughout the brewing process by seamlessly transitioning between the two phases. The first phase prepares the raw material for extraction, and the second phase continues the extraction process without interruption, ensuring that the entire brewing time is productively utilized to achieve high extraction quality efficiently.
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 enhances raw material extraction efficiency, particularly when using lower temperature liquids, by ensuring appropriate pre-wetting and prolonged contact time, thereby improving the quality of the brewed beverage.
Implementation Method 1
a fluid displacement assembly for delivering liquid, e.g. water, into the brewing vessel containing the raw material
Data Source
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AI summary
Provided is a system (50), method and related computer program, for controlling a fluid displacement assembly (18) of a beverage brewing apparatus (10). A wetting volume of liquid (14), to be delivered to a brewing vessel (16) containing raw material (12), is obtained at least partly based on an amount of the raw material from which a beverage is to be prepared. The fluid displacement assembly is operated in a first mode to deliver the wetting volume of the liquid to the brewing vessel containing the raw material. The fluid displacement assembly is switched from operating in the first mode to operating in a second mode, subject, e.g. in response, to the wetting volume of the liquid having been delivered to the brewing vessel by operation of the fluid displacement assembly in the first mode. Fluid is displaced by the fluid displacement assembly being operated in the second mode but at a lower flow rate compared to when the fluid displacement assembly is operated in the first mode. Further provided is the beverage brewing apparatus including the system.