Method for stabilizing and / or controlling and / or regulating the working temperature, heat exchanger unit, device for transporting energy, refrigerating machine and heat pump
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Solution Overview
Problem
Existing cycle-based systems using calorically active materials suffer from self-heating due to hysteresis effects and other heating mechanisms, leading to an increase in base temperature and reduced efficiency over time.
Innovation Solution
A method and device for stabilizing and controlling the base temperature of calorically active materials in cycle-based systems by using a cooling fluid to maintain the calorically active material at a desired temperature, thereby dissipating generated heat and preventing temperature fluctuations.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If calorically active material is used in cycle-based systems, then energy transport efficiency is improved, but base temperature increases due to self-heating
Solution Approach 1:
The harmful self-heating effect is extracted and separated from the calorically active material by introducing a dedicated cooling fluid circuit. The cooling fluid absorbs the generated heat and transports it away, allowing the calorically active material to maintain its base temperature while continuing to provide efficient energy transport through latent heat transfer.
Solution Approach 2:
A cooling fluid is introduced as an intermediary substance between the calorically active material and the thermal environment. This cooling fluid mediates the heat removal process, absorbing heat from the calorically active material during field application and transporting it to a heat dissipation location, thereby preventing base temperature increase.
2Productivity
If cycle frequency is increased to improve productivity, then energy transport capacity increases, but self-heating effects worsen
Solution Approach 1:
The cooling fluid continuously circulates through the system, providing continuous heat removal that matches the continuous cyclic operation of the calorically active material. This continuous cooling action ensures that even at high cycle frequencies, the base temperature remains stable and self-heating losses are continuously mitigated.
Solution Approach 2:
The cooling fluid circuit provides a feedback mechanism where the cooling requirement is dynamically responded to by the continuous circulation and heat absorption. As the calorically active material undergoes cyclic field application and generates heat, the cooling fluid automatically absorbs this heat and transports it away, creating a self-regulating thermal management system.
3Stability of the object's composition
If cooling fluid is introduced to control temperature, then base temperature stability is improved, but device complexity increases
Solution Approach 1:
The cooling fluid circuit is merged with the existing field application system, where the cooling channels are integrated into the structure that already applies the field to the calorically active material. This merging allows thermal management to be achieved without adding completely separate, complex cooling infrastructure.
Solution Approach 2:
The cooling fluid serves multiple functions: it cools the calorically active material during field application, transports heat away from the system, and can be designed to work with the existing fluid handling infrastructure of the cycle-based system. This multi-functionality reduces the need for additional specialized components.
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 method and device enhance system efficiency by maintaining the calorically active material at an ideal operating temperature, allowing for higher frequency operation and improved energy transport capabilities.
Implementation Method 1
dissipating generated heat
Implementation Method 2
cooling fluid to maintain the calorically active material at a desired temperature
Implementation Method 3
changes its temperature in interaction with a corresponding field... crystal lattice transformation between a ferromagnetic and a paramagnetic phase
Implementation Method 4
Heat transfer between fluid and heat exchanger occurs via latent heat
Implementation Method 5
self-heating due to hysteresis effects... self-heating includes the aforementioned hysteresis effects, particularly in mechanocaloric materials
Implementation Method 6
inductive heating, capacitive heating, and/or resistive heating
Implementation Method 7
self-heating includes... friction
Data Source
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AI summary
The invention relates to a method for stabilizing and/or controlling and/or regulating the operating temperature of a cycle-based system with at least one heat exchanger unit comprising at least one heat-active material element. Crucially, a cooling fluid is used to control a base temperature of the heat-active material element (11, 12). The invention further relates to a heat exchanger unit, a chiller, and a heat pump.