Zoned Food Processing Vat Heating for Splash-Zone Temperature Control
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Solution Overview
Problem
Temperature control systems in food processing vats often lead to overheating or overcooling of food layers that cling to and run down the splash-zone, differing from the main mass of food, due to uneven heat transfer.
Innovation Solution
A zoned heat transfer system with multiple heat transfer zones across the vat's bottom and side walls, allowing for selective heating or cooling, and a diverter system to control the flow of a heat transfer fluid, ensuring precise temperature control by establishing temperature differentials based on batch size and target temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a uniform heat transfer system is used across the entire vat, then the main mass of food is heated or cooled evenly, but the splash-zone layers of food are overheated or overcooled due to rapid heat transfer
Solution Approach 1:
The heat transfer system is divided into multiple independent zones: a first heat transfer zone and a second heat transfer zone. Each zone can be controlled separately to apply different heat transfer rates to different portions of the vat, preventing uniform overheating or overcooling of splash-zone food layers while maintaining even heating of the main food mass.
Solution Approach 2:
Different portions of the vat are assigned different heat transfer characteristics. The first heat transfer zone applies a first heat transfer rate while the second heat transfer zone applies a second heat transfer rate, allowing localized temperature control that accounts for the different thermal sensitivities of the main food mass versus the splash-zone food layers.
2Manufacturing precision
If multiple heat transfer zones are implemented with separate control, then precise temperature control is achieved, but the system complexity increases
Solution Approach 1:
The heat transfer system is segmented into multiple independently controllable zones, each with its own heat transfer rate control. This segmentation enables precise temperature control in different vat regions without requiring complete system redesign, as each zone can be adjusted independently based on local thermal requirements.
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 system prevents overheating or overcooling by mirroring temperature changes along the vat's height and accommodating different materials and processes, ensuring consistent processing temperatures.
Implementation Method 1
transmitting heat to or removing heat from different portions of at least one of the bottom and side walls of the vat
Implementation Method 2
circulating a heat transfer fluid through the zoned heat transfer system
Data Source
AI summary
A food processing vat is provided with a zoned heat transfer system that provides zoned temperature control to the vat. The zoned heat transfer system selectively transmits heat to or removes heat from different portions of a bottom wall and/or side wall(s) of the vat. A heat transfer fluid may be directed through the zoned heat transfer system along a flow path that is selected based on a target size and/or a target temperature of a batch of food product being processed in the vat.