Method for operating a heating device
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Solution Overview
Problem
Existing heating devices with heat generators and heat pumps lack an efficient operating strategy to adapt to changing operating parameters, leading to suboptimal energy efficiency and increased costs, as they do not dynamically adjust the switch-on and switch-off temperatures based on current conditions.
Innovation Solution
An operating strategy algorithm that continuously recalculates the switch-on and switch-off temperatures of the heat pump based on current operating parameters, including supply water temperature, cost ratios, and conversion efficiencies, allowing for adaptive operation to optimize energy usage and reduce costs.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the heat pump operates with fixed switch-on and switch-off temperatures, then the control system is simple, but energy efficiency decreases and operational costs increase
Solution Approach 1:
The patent implements dynamic temperature thresholds by continuously adjusting the switch-on temperature T_one and switch-off temperature T_out based on current operating parameters. The control unit recalculates these thresholds in real-time according to the heat storage unit's charge level, outdoor temperature, and heat generator operating status, transforming the static control system into an adaptive dynamic system that optimizes energy efficiency.
Solution Approach 2:
The patent changes the control parameters from fixed temperature values to variable thresholds that depend on multiple operating conditions. The switch-on temperature T_one and switch-off temperature T_out are no longer constant but are dynamically modified based on the state of the heat storage unit, outdoor temperature, and heat generator availability, allowing the system to adapt to changing operational contexts.
2Device complexity
If the heat pump operates with fixed switch-on and switch-off temperatures, then the control algorithm is simple, but operational costs increase
Solution Approach 1:
The patent implements a feedback mechanism where the control unit continuously monitors operating parameters (heat storage unit charge level, outdoor temperature, heat generator status) and uses this information to adjust the switch-on and switch-off temperatures. This closed-loop feedback system enables the heat pump to respond to changing conditions, optimizing operational costs by avoiding unnecessary operation when the heat storage unit is sufficiently charged or when external conditions make operation inefficient.
3Use of energy by moving object
If the heat pump dynamically adjusts operation based on operating parameters, then energy efficiency improves, but device complexity increases
Solution Approach 1:
The control unit autonomously adjusts the switch-on and switch-off temperatures based on monitored operating parameters without requiring external intervention or complex user programming. The system serves itself by automatically optimizing its operation based on real-time conditions, including the charge level of the heat storage unit, outdoor temperature, and the operational status of the heat generator, thereby achieving high energy efficiency with manageable complexity.
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 enables the heating device to operate more economically and ecologically by dynamically adjusting the heat pump's operation in response to changing conditions, ensuring efficient energy use and reduced operational costs.
Implementation Method 1
The heat pump is designed to transfer heat from a heat reservoir, in particular from the environment of the heat pump, such as the atmosphere, a body of water, and/or the ground, into a heat circuit. The heat pump is specifically designed to extract heat from the heat reservoir and raise it to a higher temperature level before feeding it into a heat circuit of the heating device.
Implementation Method 2
A 'heat pump' is preferably understood to be a speed-controlled electric heat pump with a speed-controlled compressor. The heat pump is designed to transfer heat from a heat reservoir
Implementation Method 3
A 'first heat generator' is preferably understood to be a combustion-based heat generator that produces thermal energy by burning a fuel. The first heat generator can be an oil boiler, an oil condensing boiler, a gas burner unit, a gas condensing boiler unit, an electric heater, an electric immersion heater, and/or a pellet heater.
Implementation Method 4
A'heat storage tank' is preferably understood to be a water storage tank, in particular a water tank, in which domestic hot water is stored and heated by a heat generator, such as, in particular, the first heat generator or the heat pump.
Implementation Method 5
The heat transfer medium is passed through a heat exchanger located in the thermal storage tank to transfer its thermal energy to the domestic hot water.
Data Source
Figure 1
AI summary
The invention relates to a method for operating a heating device (10) comprising a first heat generator (12) for generating heat, a heat pump (14) for generating heat, and a heat storage device (16) which can be selectively charged by the first heat generator (12) and/or the heat pump (14). It is proposed that an operating strategy algorithm be implemented to control the heat pump (14), which determines a switch-off temperature Tout of the heat pump (14) and/or a switch-on temperature Tin of the heat pump (14) based on at least one current operating parameter of the heating device (10).