Variable geometry manifold for generating laminar air flow
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Solution Overview
Problem
Existing outdoor air purification systems, such as electrostatic precipitators (ESP), face inefficiencies in processing large volumes of particulate matter due to the sheer volume of particulate pollution in outdoor environments, making them costly and inefficient.
Innovation Solution
A variable geometry manifold with an axially symmetric intake is used to convert disordered external air into a laminar flow, which is then introduced into an ESP air purifier, enhancing particulate matter collection efficiency by directing air through a narrowing channel to increase speed and convert it into a laminar flow before ionization and capture.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional filter-based systems are used for outdoor air purification, then particulate matter can be captured, but the system becomes expensive and requires continual filter replacement
Solution Approach 1:
The patent replaces the mechanical filter-based system with an electrostatic precipitator system that uses electrostatic fields for particle separation. Instead of physical filters that require replacement, the system employs charged plates that create electrostatic forces to capture particulate matter, eliminating the need for consumable filters while maintaining capture effectiveness
Solution Approach 2:
The invention changes the fundamental operating parameter from mechanical filtration to electrostatic precipitation. By introducing high voltage electric fields and utilizing electrostatic forces, the system transforms the particle capture mechanism from physical blocking to electrostatic attraction, thereby eliminating filter replacement requirements
2Quantity of substance
If ESP devices process large volumes of outdoor air, then more particulate matter can be removed, but the efficiency of particulate matter collection decreases
Solution Approach 1:
The patent introduces a preliminary action by generating laminar flow before the air enters the electrostatic precipitator chambers. This pre-conditioning of the air flow ensures uniform distribution and appropriate velocity profiles, which optimizes the electrostatic precipitation process and maintains high collection efficiency even when processing large volumes of outdoor air
Solution Approach 2:
The invention employs dynamic flow management through variable geometry manifolds and adjustable dampers that adapt the air flow characteristics in real-time. This dynamic control ensures that regardless of the volume of air being processed, the flow conditions within the ESP chambers remain optimized for maximum particulate matter collection efficiency
3Productivity
If air flow is not converted to laminar flow before ESP, then the system is simpler, but particulate matter collection efficiency is reduced
Solution Approach 1:
The patent segments the air flow path into distinct zones: a variable geometry manifold section for flow conditioning, transition sections, and multiple electrostatic precipitator chambers. This segmentation allows the laminar flow generation to be concentrated in specific areas where it is most needed, rather than requiring the entire system to be redesigned for laminar flow
Solution Approach 2:
The invention introduces intermediate flow conditioning elements such as honeycomb structures and screens within the variable geometry manifold that act as mediators to transform turbulent outdoor air flow into laminar flow. These intermediary components facilitate the transition without requiring complete system redesign, adding only the necessary elements to achieve flow conditioning
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 significantly improves the efficiency of particulate matter collection in ESP devices by converting disordered air into laminar flow, increasing the capture rate and reducing operational costs through optimized air flow management.
Implementation Method 1
converted to a laminar flow of air prior to being introduced to the ESP air purifier
Implementation Method 2
The electric field ionizes the particulate matter within the laminal flow
Implementation Method 3
the electric field repels the ionized particulate matter away from the negative plate and towards the collecting plate
Data Source
AI summary
Systems, methods, and apparatus for generating a laminar air flow using a variable geometry manifold.