Method of operating a smoke generating assembly in an indoor smoker
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Solution Overview
Problem
Conventional smokers rely on fixed igniter temperatures, leading to undesirable smoke flavors, acrid tastes, and high soot and ash concentrations due to full combustion of combustible materials, with limited control over smoke and chamber temperatures.
Innovation Solution
An indoor smoker with a smoke generating assembly featuring a smoldering chamber, auger, and smoldering heater, controlled by a controller to regulate the duration of combustible material exposure, allowing precise control over smoke generation and chamber temperature.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-generated harmful factors
If fixed igniter temperatures are used to generate smoke, then smoke generation is achieved, but undesirable flavors and high soot concentration occur
Solution Approach 1:
The system transitions from fixed igniter temperatures to dynamically adjustable smoldering temperatures. The controller regulates the smoldering heater to maintain temperatures between 200-400°C, allowing real-time optimization of combustion conditions to minimize harmful emissions while maintaining smoke generation quality.
Solution Approach 2:
The invention changes the temperature parameter from fixed high-temperature ignition to variable low-temperature smoldering (200-400°C). This parameter change fundamentally alters the combustion process, producing cleaner smoke with reduced soot and undesirable flavors while maintaining adequate smoke generation for food smoking.
2Productivity
If combustible material is smoldered until fully consumed, then continuous smoke generation is achieved, but acrid flavors and high soot production occur
Solution Approach 1:
The system implements periodic replenishment of combustible material instead of continuous burning until exhaustion. The auger delivers fresh material at controlled intervals, allowing the smoldering process to be reset before harmful byproducts accumulate, thereby maintaining continuous smoke generation with improved quality.
Solution Approach 2:
The controller monitors combustion conditions and regulates the smoldering heater and auger operation accordingly. This feedback mechanism ensures the combustible material is replenished at optimal moments and the smoldering temperature is maintained within the 200-400°C range, preventing excessive combustion that produces acrid flavors and soot.
3Adaptability or versatility
If conventional smoke generation systems are used, then smoke production is achieved, but independent regulation of smoldering temperature and chamber temperature is not possible
Solution Approach 1:
The temperature control system is segmented into two independent subsystems: a smoldering heater controlled by a first temperature sensor for regulating smoldering temperature (200-400°C), and a chamber heater controlled by a second temperature sensor for regulating cooking chamber temperature. This segmentation allows independent optimization of both temperatures without interference.
Solution Approach 2:
The controller acts as an intermediary that receives inputs from two separate temperature sensors and independently actuates two separate heaters. This intermediary control architecture enables decoupled temperature regulation, where adjustments to smoldering temperature do not directly affect chamber temperature and vice versa.
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 precise control over smoke quality and temperature, reducing undesirable flavors and soot, while ensuring consistent and efficient smoke generation.
Implementation Method 1
a smoldering heater in thermal communication with the smoke barrel for smoldering the combustible material
Implementation Method 2
an auger positioned within the smoke barrel and being rotatable about the central axis for selectively urging the combustible material from the first end toward the second end
Data Source
AI summary
An indoor smoker includes comprising a smoking chamber and a smoke generating assembly for providing a flow of smoke into the smoking chamber, the smoke generating assembly including a smoke barrel for receiving combustible material, an auger positioned within the smoke barrel for selectively urging the combustible material through the smoldering chamber, and a smoldering heater in thermal communication with the smoke barrel for smoldering the combustible material as the auger advances the combustible material past the smoldering heater. A method of operation includes determining a target smoldering duration, rotating the auger to advance a first load of the combustible material onto the smoldering heater, determining that the target smoldering duration has elapsed, and rotating the auger to advance the first load of the combustible material off of the smoldering heater and advance a second load of the combustible material onto the smoldering heater.