Combustion Experiment Device Radial Flame Heating
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing combustion experiment devices face reduced measurement accuracy due to temperature deviations in the radial direction of the reaction tube when heated by a burner, as the heating is typically unidirectional, leading to discrepancies between pre-stored and actual temperature gradients.
Innovation Solution
A combustion experiment device design where a burner part flows combustible gas around the reaction tube from the downstream to the upstream side, forming a flame that surrounds the tube radially, ensuring uniform heating and preventing radial temperature deviations, allowing for higher temperature ranges to be achieved.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If the reaction tube is heated by a flame from one direction, then high temperature can be achieved, but temperature deviation occurs in the radial direction
Solution Approach 1:
The patent transitions from unidirectional heating (one-dimensional heat source placement) to circumferential heating (three-dimensional heat source distribution). The burner is positioned at the downstream end with the flame wrapping around the reaction tube, creating uniform radial heating that eliminates temperature deviations while maintaining high temperature capability.
2Ease of manufacture
If the reaction tube is heated from below in horizontal position, then heating is simplified, but temperature gradient deviation occurs between burner side and opposite side
Solution Approach 1:
The heating configuration is changed from vertical heating from below to circumferential heating around the tube. The burner is positioned at the downstream end with the flame extending upstream and wrapping around the reaction tube, providing uniform heating that maintains both simplicity and precision.
3Measurement precision
If a heater is used to heat the reaction tube, then temperature control is precise, but maximum temperature is limited to about 1000°C
Solution Approach 1:
The heating method is changed from electrical heating (heater) to combustion heating (burner). This parameter change in the heating mechanism enables temperatures exceeding 1000°C while the circumferential flame configuration maintains temperature uniformity, resolving the temperature limit constraint.
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 design enhances measurement accuracy by maintaining uniform temperature distribution across the reaction tube's circumference, enabling the evaluation of samples that require high temperature ranges for reaction, and allowing for precise ignition temperature measurements.
Implementation Method 1
a burner part configured to flow a combustible gas along and around the reaction tube from the downstream side to an upstream side of the reaction tube and to maintain a flame surrounding the reaction tube
Data Source
AI summary
Provided is a combustion experiment device, which includes a reaction tube into which a sample fluid flows and to which a temperature gradient in which a temperature rises toward a downstream side is imparted, and a burner part that is configured to flow a combustible gas along and around the reaction tube from the downstream side to an upstream side of the reaction tube and to maintain a flame surrounding the reaction tube from the outside in a radial direction of the reaction tube.