Method for operating a thermal engineering system
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Solution Overview
Problem
Existing heating systems are inefficient when the actual heat requirement is lower than the operational requirements of the thermal device, leading to suboptimal performance and potential failure to meet specific heating demands in buildings.
Innovation Solution
Implementing a circuit control system that increases the flow rate of the heat transfer fluid independently of the actual heat demand at the second heat exchanger, allowing the thermal device to operate as both a heat source and sink, ensuring optimized use by adjusting the flow rate through actuating elements like thermostatic valves, even when there is no need to change the heat transfer, thereby maintaining efficient operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If the flow rate is increased to ensure optimal operation of the thermal device, then the thermal device efficiency is improved, but the actual heat requirement at the second heat exchanger may not be met
Solution Approach 1:
The system divides the circuit into multiple independent control zones with separate actuating elements (thermostatic valves) for each second heat exchanger. This allows selective opening/closing of individual branches to regulate flow distribution, ensuring that increasing flow to one heat exchanger does not compromise heat supply to others, thus resolving the contradiction between optimal thermal device operation and heat requirement fulfillment.
Solution Approach 2:
The system dynamically adjusts the flow rate parameter through actuating elements based on detected heat requirements and thermal device operating conditions. By changing the flow rate parameter adaptively - increasing it when thermal device efficiency is suboptimal and decreasing it when heat requirements are fully met - the system resolves the contradiction between maintaining optimal thermal device operation and satisfying actual heat demands.
2Productivity
If the flow rate is increased independently of actual heat demand, then the thermal device can operate efficiently, but energy is wasted by supplying more heat than required
Solution Approach 1:
The system employs feedback mechanisms where sensors detect both the heat requirements at second heat exchangers and the operating conditions of the thermal device. This dual feedback allows the control system to make intelligent decisions about flow rate adjustment - increasing flow only when it improves thermal device efficiency without creating excessive heat waste, and preventing unnecessary flow increases when heat requirements are already satisfied, thus resolving the contradiction between productivity and energy loss.
Solution Approach 2:
The system dynamically adjusts the flow rate based on real-time operating conditions rather than maintaining a fixed rate. The actuating elements continuously modulate the flow to match the dynamic balance between thermal device efficiency requirements and actual heat demand, preventing both inefficient operation and excessive energy waste, thereby resolving the contradiction between productivity and energy loss.
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 the thermal device operates efficiently by maintaining a minimum volume flow, allowing for optimal heat management, whether in heating or cooling modes, and ensures that heat is provided or removed as needed, even in situations where the standard flow rate is not met, such as in bathrooms or studies, thereby enhancing user comfort and system efficiency.
Implementation Method 1
a heat content of a heat transfer fluid is changed with a first heat exchanger (1)
Implementation Method 2
the heat content of the heat transfer fluid coming from the flow (3.1) is changed in the second heat exchanger (2) in the opposite way
Implementation Method 3
a flow rate of the heat transfer fluid being recorded by a sensor (4) arranged on the circuit (3)
Data Source
Figure 1~2
AI summary
The invention relates to a method for operating a thermal engineering system in which a first heat exchanger (1) changes the heat content of a heat transfer fluid, in which the heat transfer fluid with its changed heat content is supplied via a supply line (3.1) of a circuit (3) to a second heat exchanger (2), in which the heat content of the heat transfer fluid coming from the supply line (3.1) is changed in the second heat exchanger (2) in the opposite way to the first heat exchanger (1), in which the heat transfer fluid with its changed heat content is returned to the first heat exchanger (1) via a return line (3.2) of the circuit (3), wherein a flow rate of the heat transfer fluid is detected by a sensor (4) arranged on the circuit (3) and a supply of the heat transfer fluid to the second heat exchanger (2) is controlled by an actuating element (5).1) comprising an actuating device (5), wherein the sensor (4) and a thermal device (6) interacting with the first heat exchanger (1) communicate with a circuit control (7). According to the invention, the circuit control (7) opens the actuating element (5.1) to increase the flow rate measured by the sensor (4) in order to optimize the use of the thermal device (6) and independently of an actual heat demand at the second heat exchanger (2).