Portable Fermentation Vessel Cooling for Stable Batch Temperature
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Solution Overview
Problem
In small-scale beer and wine production, fluctuations in fermentation temperature can significantly impact the quality and consistency of the final product, as different yeast strains require specific temperature ranges for optimal performance, and ambient temperature variations can disrupt these conditions.
Innovation Solution
A portable thermal management system for small fermentation vessels, comprising a cylindrical enclosure with a removable heat exchanger and insulation, coupled with a temperature controller and thermally conductive fluid, allows for precise temperature control within a 40°C differential from ambient conditions, enabling consistent temperature profiles across batches.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If no temperature control system is used, then device complexity is reduced, but fermentation temperature consistency deteriorates due to ambient temperature fluctuations
Solution Approach 1:
The temperature control system is divided into separate functional modules: an enclosure structure, a heat exchanger component, insulation material, and a temperature controller. This segmentation allows each component to perform its specific function independently, making the overall system more manageable and easier to implement while achieving reliable temperature consistency.
Solution Approach 2:
A heat exchanger serves as an intermediary between the ambient environment and the fermentation vessel. It transfers thermal energy indirectly through a heat exchange fluid circulating in channels, allowing precise temperature control without direct thermal contact with the ambient air, thus improving temperature consistency while maintaining reasonable system complexity.
2Manufacturing precision
If a portable thermal management system with heat exchanger and enclosure is used, then fermentation temperature control precision is improved, but device portability and simplicity deteriorate
Solution Approach 1:
The enclosure and heat exchanger components utilize flexible or thin-walled constructions that provide sufficient thermal isolation and heat exchange functionality while minimizing weight and bulk. This allows the system to maintain precise temperature control without excessive complexity or weight, improving portability.
Solution Approach 2:
The heat exchanger serves multiple functions: it provides thermal isolation between the ambient environment and the fermentation vessel, enables active heating or cooling through fluid circulation, and can be configured for different fermentation vessel sizes. This multi-functionality reduces the need for additional components, maintaining ease of operation while achieving precise temperature control.
3Stability of the object's composition
If insulation material is added to the enclosure, then temperature stability is improved, but thermal response time to adjust temperature deteriorates
Solution Approach 1:
Insulation material is strategically placed in specific locations within the enclosure where thermal isolation is most needed, rather than uniformly throughout. The heat exchanger channels are positioned to provide efficient thermal pathways where rapid temperature adjustment is required. This localized approach maintains temperature stability while preserving rapid thermal response capability when needed.
Solution Approach 2:
The system allows dynamic adjustment of insulation effectiveness by controlling the flow rate and temperature of the heat exchange fluid. When rapid temperature adjustment is needed, increased fluid flow compensates for the insulation's thermal resistance. When temperature stability is the priority, reduced fluid flow allows the insulation to maintain stable temperatures, thus dynamically balancing stability and response time.
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
The system ensures consistent temperature control, allowing brewers and winemakers to replicate desired temperature profiles, thereby improving the quality and consistency of beer and wine production by maintaining optimal fermentation conditions.
Implementation Method 1
a removable heat exchanger and insulation
Implementation Method 2
a removable heat exchanger and insulation
Data Source
AI summary
A portable assembly for cooling the contents of a fermentation vessel is provided. In one embodiment, the assembly comprises an insulated, cylindrical enclosure having a fixed bottom and a removable lid. A flexible heat exchanger is cylindrically disposed within the enclosure and encircles the fermentation vessel. In one embodiment, the flexible heat exchanger is connected to a vessel containing thermally conductive fluid by flexible tubes that extend outside the enclosure. In one embodiment, a heating element is used to heat the fermentation vessel.