Method for burning a fuel in a wood stove, a wood stove with a controller; and an air regulator for a wood stove
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Wood stoves lack efficient means to optimize fuel burning, leading to suboptimal combustion that results in increased particulate matter, NOx, and other harmful emissions, and require frequent user intervention to manage airflow variations and fuel types.
Innovation Solution
A wood stove system with a burn controller and air regulator featuring three valves (primary, secondary, and tertiary) controlled by a micro-computer algorithm to manage five burn states, optimizing airflow and combustion based on temperature and oxygen levels, reducing user intervention and improving efficiency.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If traditional manual airflow regulation is used, then the wood stove requires frequent user intervention to manage airflow variations and fuel types, but the user involvement and monitoring time increase significantly
Solution Approach 1:
The burn controller automatically monitors combustion parameters (temperature, oxygen levels) and adjusts airflow valves without user intervention. The system serves itself by detecting combustion state and autonomously regulating primary, secondary, and tertiary airflow to maintain optimal burning conditions across different fuel types and environmental variations.
Solution Approach 2:
The system continuously monitors combustion parameters including temperature and oxygen levels, then uses this feedback to dynamically adjust valve positions. The burn controller reads sensor data, determines combustion state, and modifies airflow accordingly, creating a closed-loop control system that adapts to changing conditions without user input.
2Adaptability or versatility
If preset valve settings are used, then the wood stove has fixed airflow configurations, but it cannot adapt to different fuel types and weather conditions
Solution Approach 1:
The system transitions from static preset valve settings to dynamic automated control. The burn controller continuously adjusts valve positions based on real-time combustion parameters, enabling adaptation to different fuel types (wet, normal, dry wood) and environmental conditions (weather, chimney airflow variations) without requiring manual reconfiguration.
Solution Approach 2:
The system changes operational parameters (valve positions, airflow rates) dynamically based on detected combustion state. Different fuel types and conditions trigger different parameter sets, with the controller automatically selecting appropriate airflow configurations for optimal combustion efficiency across varying operating conditions.
3Object-generated harmful factors
If non-optimal combustion occurs, then the wood stove produces increased particulate matter, SOx, NOx, and other harmful emissions
Solution Approach 1:
The system optimizes combustion parameters by dynamically adjusting airflow rates to match fuel characteristics and combustion stage. By controlling primary, secondary, and tertiary airflow based on detected temperature and oxygen levels, the system maintains optimal combustion conditions that maximize energy conversion while minimizing harmful emissions of particulate matter, SOx, and NOx.
Solution Approach 2:
The burn controller uses feedback from temperature and oxygen sensors to continuously optimize combustion parameters. This closed-loop control ensures complete combustion by adjusting airflow in response to combustion state, thereby reducing harmful emissions while maintaining high combustion efficiency and energy conversion rates.
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
The system achieves efficient and clean burning by controlling primary and secondary valves while maintaining the tertiary valve fixed, reducing emissions by 60-80% and minimizing user interaction, while also improving fuel conversion to heat and reducing soot buildup.
Implementation Method 1
The fuel is placed in a combustion chamber, ignited and combustion air, i.e. air with some percentage of oxygen, is supplied to the chamber to allow for a burn or glow of the fuel
Data Source
AI summary
A method for burning a fuel in a wood stove having a door to a combustion chamber with a base, which combustion chamber is isolated from the air by an exhaust and an intake at which intake there is provided an air regulator having at least primary, secondary and tertiary air intake ducts. The stove is controlled by a burn controller configured to operate between the different operating, i.e. different combustion states.