Inductively Coupled Plasma Device Downstream Confinement
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Solution Overview
Problem
Current plasma torch systems are complex and costly, limiting their widespread use in applications like steam reforming, cracking, gasification, and combustion due to reliance on single fluid exit and upstream gas flow regulation for plasma confinement and ignition.
Innovation Solution
An inductively coupled plasma device with a moveable electrode, tangential entry and exit, and a wave energy source within the RF range to 50 or 60 Hz, reducing complexity and cost by improving gas regulation, plasma ignition, and confinement, and allowing for various operational modes including lean combustion.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If current plasma torch systems use single fluid exit and upstream gas flow regulation for plasma confinement and ignition, then plasma can be sustained, but device complexity and cost increase
Solution Approach 1:
The patent extracts the plasma confinement function from the single fluid exit system by introducing a separate downstream fluid flow system. The downstream flow acts as an independent confinement mechanism, removing the burden from the upstream gas regulation system and simplifying overall device complexity while maintaining reliable plasma sustainment.
Solution Approach 2:
The patent segments the plasma confinement function into two independent parts: upstream gas flow for ignition and downstream fluid flow for confinement. This segmentation allows each subsystem to be optimized independently, reducing the complexity of integrated gas regulation while ensuring reliable plasma sustainment through coordinated operation of both segments.
2Reliability
If current plasma torch systems rely on upstream gas flow control for plasma ignition and sustainment, then plasma can be maintained, but operational difficulty increases
Solution Approach 1:
The patent divides plasma control into two independent operational segments: upstream gas flow control for ignition and downstream fluid flow control for confinement. This segmentation simplifies operational procedures by allowing operators to control ignition and sustainment independently, reducing the skill level and complexity required for plasma maintenance.
Solution Approach 2:
The patent extracts the plasma confinement control from the upstream gas flow system and places it in the downstream fluid flow system. This extraction simplifies operational complexity by separating the control functions, making the system easier to operate while maintaining reliable plasma sustainment through the downstream confinement mechanism.
3Adaptability or versatility
If plasma systems are designed for mainstream industrial applications, then application versatility increases, but system complexity and cost must be reduced
Solution Approach 1:
The patent creates a universal plasma system architecture where the downstream fluid flow confinement mechanism can be applied across multiple industrial applications including steam reforming, cracking, gasification, and combustion. This multi-functional design allows a single system configuration to serve diverse applications, increasing adaptability while maintaining manageable complexity through the standardized dual-flow approach.
Solution Approach 2:
The patent segments the plasma system into universal, application-independent components (the dual-flow confinement architecture) and application-specific process parameters. This segmentation allows the core system design to remain simple and reusable across applications, while only the process conditions need to be adjusted for different industrial uses, thereby increasing versatility without proportionally increasing complexity.
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 efficient and cost-effective use of plasma in heavy industrial, commercial, and residential applications, with the ability to crack fuels, capture black carbon, and integrate with water treatment, reducing emissions and enhancing energy efficiency.
Implementation Method 1
a wave energy source selected from electromagnetic radiation ("EMR") within the radio frequency ("RF") range all the way to a line frequency of 50 or 60 Hz
Implementation Method 2
The devices described herein reduce the complexity of gas regulation (upstream and downstream fluid flow), current control, voltage control, plasma ignition, sustainment and confinement by using a moveable electrode in combination with an electrode nozzle
Data Source
AI summary
An inductively coupled plasma device includes a rotary furnace tube and an inductively coupled plasma source. The rotary furnace tube has a first end, a second end and a longitudinal axis. In a first embodiment, the inductively coupled plasma source is disposed proximate to the first end of the rotary furnace tube and is aligned with the longitudinal axis of the rotary furnace such that the inductively coupled plasma source discharges a plasma into the rotary furnace tube. In a second embodiment, the inductively coupled plasma source is a ground electrode disposed within and aligned with the longitudinal axis of the rotary furnace tube, and a second electromagnetic radiation source disposed around or within the rotary furnace tube that generates a wave energy. The inductively coupled plasma source discharges a plasma within the rotary furnace tube.