Heater Combustion Control for Accurate New Fuel Detection
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Solution Overview
Problem
Existing heating device control systems assume new fuel is introduced every time the combustion chamber door is opened and closed, leading to incorrect control settings and inadequate combustion if no new fuel is introduced, resulting in inefficient energy yield and increased pollutant development.
Innovation Solution
Implementing a method that continuously monitors the combustion chamber door with a sensor to accurately determine if new fuel has been introduced, using additional sensors like temperature and CO sensors to adapt control settings for optimal combustion, ensuring efficient fuel use and reduced pollutant formation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the control system assumes new fuel is introduced every time the combustion chamber door is opened and closed, then the control settings can be simplified, but the combustion becomes inadequate when no new fuel is actually introduced
Solution Approach 1:
The patent applies feedback by using sensors (temperature sensor, CO sensor) to continuously monitor the actual state of the combustion chamber and feed this information back to the control unit. The control unit compares the sensed values with expected values for new fuel introduction and adjusts the control strategy accordingly, resolving the contradiction between simple control assumptions and reliable combustion detection.
2Measurement precision
If the combustion chamber door opening and closing is continuously monitored with a sensor, then the detection of new fuel introduction becomes more accurate, but the device complexity increases
Solution Approach 1:
The patent uses intermediary sensors (temperature sensor, CO sensor) that indirectly detect new fuel introduction by measuring physical quantities (temperature, CO concentration) that change when new fuel is introduced. This intermediary approach provides accurate detection without requiring direct observation of the fuel introduction process, balancing measurement precision with device complexity.
3Productivity
If additional sensors are used to determine whether new fuel has been introduced, then the combustion process is optimized, but the manufacturing cost increases
Solution Approach 1:
The patent optimizes the combustion process by dynamically changing control parameters (air supply rate, ignition timing) based on sensor feedback indicating whether new fuel has been introduced. The control unit adjusts these parameters to match the actual combustion conditions, improving combustion efficiency while using standard, cost-effective sensing technologies rather than expensive specialized equipment.
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 optimizes the combustion process by adjusting air supply and ignition conditions based on the presence of new fuel, enhancing energy yield, reducing ash and pollutant production, and improving operational safety.
Implementation Method 1
a first sensor (7) is used to detect opening and closing of the combustion chamber door (5)
Implementation Method 2
at least one further sensor (26), in particular a temperature sensor, is used to determine after closing the combustion chamber door (5) whether new fuel has been introduced into the combustion chamber (4)
Implementation Method 3
it is also possible to use a CO sensor instead of the temperature sensor
Implementation Method 4
The control (1) adapts the control settings, in particular the air supply into the combustion chamber (4), to the ascertained situation
Data Source
Figure 1
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AI summary
The method involves introducing the first fuel into the combustion chamber (4) by opening the combustion chamber door. The opening and subsequent closing of combustion chamber door during the operating phase of the heater (1) having a first sensor is detected. After closing the combustion chamber door, it is determined whether a new first fuel is introduced into the combustion chamber by a sensor (26). The control settings of the heater are adjusted differently depending on whether a new fuel is introduced into the combustion chamber or not.