Screw-in heaters and system
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Solution Overview
Problem
Existing systems for maximizing self-consumption of electrical energy from photovoltaic or wind power systems require extensive cabling due to the need for central energy management devices connected via mains voltage-carrying lines, limiting simplicity and efficiency.
Innovation Solution
A screw-in heater with integrated intelligence and data transmission capabilities allows autonomous optimization of heating output based on instantaneous feed-in power, enabling wireless communication with energy management devices to reduce cabling needs and facilitate remote control, thereby optimizing self-consumption without the need for direct mains voltage connections.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Extent of automation
If a central energy management device is used to control heating output, then self-consumption optimization is achieved, but extensive cabling with mains voltage-carrying lines is required
Solution Approach 1:
The heating device is equipped with its own control unit and data transmission device, enabling it to autonomously receive feed-in power data and adjust its heating output without requiring a central energy management device. This self-service capability eliminates the need for complex mains voltage-carrying communication lines while achieving self-consumption optimization.
Solution Approach 2:
A data transmission device serves as an intermediary between the feed-in meter and the control unit, transferring power data through communication protocols without requiring direct electrical connection for control purposes. This intermediary approach enables wireless or low-voltage data communication, significantly reducing cabling complexity.
2Reliability
If mains voltage-carrying lines are used for connection, then reliable power supply and control is ensured, but installation complexity and cabling effort increase
Solution Approach 1:
The system separates power supply and data communication functions into independent channels. The heating device receives power through conventional mains connections while data transmission occurs through a separate communication interface, allowing simplified installation without requiring complex integrated cabling solutions.
Solution Approach 2:
The data transmission device can communicate through multiple protocols and interfaces (wireless or wired), providing universal compatibility with different feed-in meters and energy management systems. This multi-functionality ensures reliable operation while accommodating various installation scenarios with minimal cabling requirements.
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 solution significantly reduces cabling efforts and enables efficient self-consumption optimization by allowing the screw-in heater to autonomously adjust its heating output based on current feed-in power, enhancing the integration of renewable energy into heating systems without the necessity of central energy management devices.
Implementation Method 1
an electrically operated heating means (2), which is provided for heating water in a hot water tank
Data Source
AI summary
The screw-in heating device (1) has an electrically operated heating unit and a data transmission unit (4) for receiving an instantaneous feed power from a feed counter. A control unit (3) controls the heater power of the electrically operated heating unit depending on the received instantaneous feed power. The electrically operated heating unit is a tubular heating element (2) or a resistance-heating device.