Local heat extracting assembly having passive and active elements and a local energy distributing system comprising a plurality of such local heat extracting assemblies
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Solution Overview
Problem
Current energy distribution systems for heating and cooling in cities are inefficient, leading to increased environmental impact and high costs, as they rely on traditional district heating grids that require high temperatures and complex infrastructure, limiting their ability to provide sustainable solutions for comfort heating and hot water needs.
Innovation Solution
A local energy distributing system that utilizes a central heat exchanger to exchange heat from district heat transfer fluid at 50-200°C to local heat transfer fluid at 25-45°C, combined with local heat extracting assemblies featuring a heat exchanger and a heat pump, allowing for efficient comfort heating and hot tap water production using passive and active technologies, reducing energy losses and infrastructure complexity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Loss of energy
If traditional district heating grids are used to provide heating, then heating demand can be met, but heat transfer losses increase and environmental impact worsens
Solution Approach 1:
The patent changes the temperature parameter of the heat transfer fluid from traditional high temperatures (60-120°C) to lower temperatures (25-45°C). This parameter change reduces heat transfer losses in the distribution network and improves energy efficiency, directly addressing the contradiction between meeting heating demand and minimizing energy losses and environmental impact
2Productivity
If high temperature heat transfer fluid is used in district heating grids, then heating efficiency is maintained, but infrastructure complexity and safety risks increase
Solution Approach 1:
The system changes the temperature parameter to lower values (25-45°C), which simplifies infrastructure requirements. Lower temperature systems require less complex insulation, pumping, and safety systems while maintaining heating efficiency through the combined heat exchanger and heat pump architecture
3Power
If district heating grids operate at high temperatures, then heat delivery capability is sufficient, but operational safety decreases
Solution Approach 1:
The patent changes the operating temperature parameter to lower values (25-45°C), which inherently improves operational safety by reducing thermal risks, scalding hazards, and system failure consequences while maintaining adequate heat delivery capability through optimized heat exchange and heat pump integration
4Adaptability or versatility
If modular local heat extracting assemblies are used, then adaptability to different buildings is improved, but device complexity increases
Solution Approach 1:
The system is divided into modular local heat extracting assemblies that can be independently installed in different buildings. Each assembly contains integrated heat exchanger and heat pump components that work together as a standardized module, providing adaptability to different building types while managing complexity through modular design and standardization
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 achieves efficient energy distribution with reduced heat transfer losses, lower infrastructure demands, and safer operations by using lower temperature heat transfer fluids, enabling cost-effective and sustainable solutions for both heating and cooling, while allowing for modular and compact installations that can integrate with existing district heating grids.
Implementation Method 1
a central heat exchanger configured to exchange heat from the incoming flow of district heat transfer fluid to an outgoing flow of local heat transfer fluid
Implementation Method 2
a local heat exchanger configured to extract heat from local heat transfer fluid of the local feed conduit to a heating liquid of a heating circuit
Implementation Method 3
a heat pump configured to pump heat from the heating liquid of the heating circuit or from local heat transfer fluid of the local feed conduit to provide hot tap water
Data Source
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AI summary
A local heat extracting assembly (200) is disclosed. The local heat extracting assembly (200) having one inlet (201) connectable to a local feed conduit (22) of a local energy distributing system (20), and one outlet (205) connectable to a local return conduit (23) of the local energy distributing system (20). The local heat extracting assembly (200) comprises: a local heat exchanger (220) configured to extract heat from local heat transfer fluid of the local feed conduit (22) to a heating liquid of a heating circuit (230) configured to circulate the heating liquid in a building (40) for providing comfort heating; and a heat pump (210) configured to pump heat from the heating liquid of the heating circuit (230) or from local heat transfer fluid of the local feed conduit (22) to provide hot tap water to the building (40). A local energy distributing system (20) comprising a plurality of local heat extracting assembly (200) is further disclosed. Further, a method for extracting heat from the local energy distributing system (20) and a method for distributing energy to a plurality of buildings (40) are disclosed.