Temperature control system
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Solution Overview
Problem
Conventional temperature control systems face limitations in maintaining accurate temperature control of a control target when the target temperature changes over time, leading to increased energy consumption and reduced followability of the supply-side detected temperature.
Innovation Solution
A temperature control system that includes a tank for storing a heat transfer medium, a circulation circuit, an adjustment section for adjusting the heat supplied to the control target, and a control section that sets the temperature based on pre-change and post-change target temperatures, allowing for efficient adjustment and reduced energy consumption by anticipating temperature changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the drive state of the cooling apparatus is maintained at a high level at all times to enhance followability of the supply-side detected temperature to the target temperature, then the followability is improved, but the energy consumption of the cooling apparatus increases
Solution Approach 1:
The control section predicts future target temperatures in advance and pre-adjusts the set temperature of the cooling apparatus accordingly. This preliminary action allows the system to prepare for upcoming temperature changes without needing to maintain high drive state continuously, thereby improving followability while reducing energy consumption during stable operation periods.
Solution Approach 2:
The system dynamically adjusts the set temperature based on predicted target temperature changes rather than maintaining a static high drive state. The control section modifies the set temperature in advance when target temperature changes are anticipated, creating a dynamic control strategy that adapts to varying operational conditions and reduces unnecessary energy consumption.
2Speed
If the set temperature is changed immediately when the target temperature changes, then the responsiveness is improved, but the temperature control accuracy deteriorates due to abrupt changes in the heat transfer medium temperature
Solution Approach 1:
The control section performs preliminary adjustment of the set temperature in advance of the actual target temperature change. By predicting the future target temperature and adjusting the set temperature beforehand, the system achieves smooth transitions that maintain temperature control accuracy while still responding promptly to target temperature changes.
Solution Approach 2:
The system applies preliminary anti-action by adjusting the set temperature in advance to counteract the thermal inertia of the heat transfer medium. This pre-adjustment compensates for the delay in temperature response, allowing the system to maintain accuracy during transitions without requiring immediate, abrupt set temperature changes.
3Reliability
If the set temperature is set to a post-change target temperature before the change timing, then the followability is improved, but the complexity of the control system increases due to temperature prediction requirements
Solution Approach 1:
The control section uses feedback from the relationship between lapse of time and target temperature to predict future temperatures. By continuously monitoring and analyzing the temporal pattern of target temperature changes, the system can accurately predict future states without requiring complex external prediction models, thereby improving followability while keeping the control system relatively simple.
Solution Approach 2:
The control system performs self-service by using its own operational data (lapse of time and target temperature relationship) to predict future temperatures. This self-contained prediction capability eliminates the need for external complex prediction systems, allowing the control section to autonomously adjust the set temperature in advance based on its own historical performance data.
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 enhances the followability of the control target's temperature to the target temperature while reducing energy consumption by pre-adjusting the heat transfer medium and optimizing the heat supply, ensuring accurate temperature control and minimizing deviations.
Implementation Method 1
a circulation circuit through which the heat transfer medium flows from the adjustment apparatus to a flow-through section capable of supplying heat to the control target
Implementation Method 2
an adjustment apparatus which includes a tank for storing a heat transfer medium and which adjusts the temperature of the heat transfer medium to a set temperature
Data Source
AI summary
A temperature control system is used for controlling a temperature of a control target to a target temperature that changes with lapse of time. The system includes: a first adjustment apparatus that includes a first tank that stores a first heat transfer medium, adjusts the temperature of the first heat transfer medium to a first set temperature, and supplies the temperature-adjusted first heat transfer medium; a first circulation circuit through which the first heat transfer medium flows from the first adjustment apparatus to a first flow-through path and returns to the first adjustment apparatus; an adjustment section that adjusts an amount of heat supplied from the first flow-through path to the control target; a memory that stores a relation between the lapse of time and the target temperature; and a controller.