Heating System, A Method, A Computer Program, A Computer-Readable Medium, A Control Device And A Use Of Such A Heating System
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Solution Overview
Problem
Existing heating systems in less insulated buildings are not suitable for current generation heat pumps with synthetic refrigerants, requiring expensive and time-consuming modifications to achieve the necessary temperature levels for effective heating, which hinders the transition to fossil-free heating solutions.
Innovation Solution
A heating system comprising a heat pump arrangement, a stratified heat storage device, and a mixing arrangement that supplies fluid at high temperatures and regulates the temperature difference within the system, allowing for direct replacement and retrofitting of existing heating solutions without extensive modifications, using natural refrigerants like CO2 for energy efficiency and reduced environmental impact.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If heat pumps with synthetic refrigerants are used in less insulated buildings, then energy efficiency is improved, but the system cannot achieve the necessary temperature levels for effective heating
Solution Approach 1:
The patent introduces a temporal dimension by implementing a buffer storage system that separates heat production from heat consumption. The heat pump operates independently to charge the buffer with thermal energy, while the heating system draws from the buffer when high temperatures are needed, allowing the heat pump to operate at optimal temperatures rather than being constrained by instantaneous heating demands.
Solution Approach 2:
The system changes the operational parameters of the heat pump by decoupling its operating temperature from the heating system's required temperature through the buffer storage. This allows the heat pump to operate at lower, more efficient temperatures while the buffer provides thermal energy at the higher temperatures needed for effective heating in less insulated buildings.
2Object-generated harmful factors
If existing heating systems are modified to work with heat pumps, then fossil-free heating is achieved, but expensive and time-consuming modifications are required
Solution Approach 1:
The buffer storage system acts as an intermediary component between the heat pump and the existing heating distribution system. It absorbs the thermal energy from the heat pump and provides it to the heating system, allowing the heat pump to be integrated without requiring modifications to the existing radiators or heating infrastructure.
Solution Approach 2:
The buffer storage system serves multiple functions: it stores thermal energy from the heat pump, provides high-temperature heat when needed, maintains system pressure, and enables the heat pump to operate independently of the heating system's temperature requirements. This multi-functionality allows a single component to enable fossil-free heating without complex modifications.
3Use of energy by moving object
If heat pumps operate with small temperature difference between incoming and outgoing fluid, then energy efficiency is improved, but the system cannot provide sufficient heating capacity for less insulated buildings
Solution Approach 1:
The patent segments the heating system into two independent parts: the heat pump unit and the buffer storage unit. This segmentation allows the heat pump to operate with optimal temperature differences for efficiency, while the buffer storage provides the additional thermal mass and capacity needed to meet the heating demands of less insulated buildings.
Solution Approach 2:
The buffer storage is pre-charged with thermal energy from the heat pump when heating demand is low or the heat pump is operating efficiently. This preliminary action of storing thermal energy allows the system to provide sufficient heating capacity during peak demand periods without requiring the heat pump to operate at inefficient temperature differences.
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
Enables cost-effective and energy-efficient heating in less insulated buildings, reducing fossil fuel dependence and environmental footprint by achieving high temperature outputs with a direct replacement option for existing heating systems, facilitating the transition to sustainable heating solutions.
Implementation Method 1
a heat pump arrangement configured to heat a fluid; The heat pump arrangement is configured to supply the outgoing fluid to the heat storage device at an outgoing temperature of at least 55° C.
Implementation Method 2
a stratified heat storage device configured to store the fluid at differentiated temperatures; an ingoing temperature of the ingoing fluid subtracted from the heat storage device by the heat pump arrangement is at least 20° C. lower than the outgoing temperature of the outgoing fluid from the heat pump arrangement
Implementation Method 3
a mixing arrangement configured to subtract fluid from the heat storage device and to regulate the temperature of the fluid entering the heat distribution system and control the temperature of the returning fluid from the heating distribution system
Data Source
AI summary
A heating system configured to be connected to a heating distribution system of a building. The heating system comprises a heat pump arrangement configured to heat a fluid; a stratified heat storage device configured to store the fluid at differentiated temperatures, a mixing arrangement; and a control device for controlling the heating system. The mixing arrangement is configured to subtract fluid from the heat storage device and to regulate the temperature of the fluid entering the heat distribution system and control the temperature of the returning fluid from the heating distribution system. The invention also relates to a method for controlling such a heating system, a computer program, a computer-readable medium, and a control device.