Circulation System Temperature Control via Axial Models
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Solution Overview
Problem
Existing cold water circulation systems fail to maintain water temperature below the desired level across all partial sections and at all times, leading to potential microbial growth and non-compliance with temperature regulations.
Innovation Solution
A method that calculates and adjusts water temperature and volume flow using a model of axial temperature change, ensuring the water temperature remains below the set limit by determining the temperature change between initial and end regions of each partial section, with adjustments made to the cooling device and circulation pump to maintain optimal conditions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a cooled circulation system is used to maintain water temperature below +25°C, then microbial growth is prevented and regulatory compliance is improved, but the system fails to maintain temperature consistency across all partial sections and oscillations occur
Solution Approach 1:
The circulation system is divided into multiple partial sections, each with its own temperature calculation based on axial temperature change models. This segmentation allows targeted temperature control for each section rather than uniform control, preventing temperature inconsistencies across different parts of the system.
Solution Approach 2:
The system calculates the required water temperature and volume flow in advance using axial temperature change models before circulation begins. By determining the necessary cooling parameters beforehand, the system can maintain consistent temperatures without oscillations during operation.
2Manufacturing precision
If temperature and volume flow are adjusted frequently to maintain compliance, then temperature regulation is improved, but system oscillations increase and energy consumption rises
Solution Approach 1:
The system incorporates feedback mechanisms where temperature sensors monitor actual water temperature in each partial section, and this information is used to adjust cooling parameters. The feedback loop ensures precise temperature control while minimizing unnecessary adjustments that would cause oscillations and increase energy consumption.
Solution Approach 2:
The system optimizes temperature and volume flow parameters by calculating axial temperature changes and determining optimal values before circulation. By changing parameters proactively rather than reactively, the system achieves precise temperature control with minimal energy consumption and without causing oscillations.
3Measurement precision
If sensors are installed in each partial section to monitor temperature, then temperature measurement accuracy is improved, but device complexity and cost increase
Solution Approach 1:
Instead of installing physical sensors in each partial section, the system creates a virtual model of temperature distribution by calculating axial temperature changes. This computational copy of the temperature field provides accurate temperature information for each section without the complexity and cost of multiple physical sensors.
Solution Approach 2:
The system replaces the mechanical approach of installing multiple physical temperature sensors with a computational model that calculates temperature distribution. This substitution eliminates the need for complex sensor networks while maintaining measurement precision through mathematical modeling of heat transfer.
4Productivity
If the circulation pump operates at high speed to ensure water flow, then water circulation is improved, but energy consumption increases
Solution Approach 1:
The circulation pump operates dynamically with variable speed rather than at constant high speed. The system calculates optimal volume flow parameters and adjusts pump speed accordingly, maintaining adequate water circulation while minimizing energy consumption. This dynamic operation allows the pump to adapt to varying system requirements.
Solution Approach 2:
The system ensures continuous adequate water circulation through optimized volume flow parameters calculated from axial temperature change models. By maintaining just sufficient flow rather than excessive flow, the system achieves continuous effective circulation with reduced energy consumption compared to high-speed constant operation.
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 ensures consistent water temperature compliance across the circulation system, reducing the need for sensors and minimizing system oscillations, while also improving energy efficiency and adhering to regulatory requirements.
Implementation Method 1
a cooling device with an input port and an output port for the cooling of water
Data Source
AI summary
The invention relates to a method for operating a circulation system comprising a cooling device with an input port and an output port for cooling water. The invention also relates to a circulation system for implementing said method.