Vaporized Hydrogen Peroxide Decontamination System with Concentration Adjustment
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Solution Overview
Problem
Existing decontamination systems lack control mechanisms to determine condensation conditions and optimal concentration levels of hydrogen peroxide vapor, leading to potential condensation, increased decontamination time, and limited effectiveness in larger areas due to vaporizer capacity constraints.
Innovation Solution
A decontamination system with feedback control that monitors actual hydrogen peroxide vapor concentration, determines the dew point margin, and adjusts the injection rate to maintain a predetermined margin below the dew point concentration, ensuring optimal concentration levels and preventing condensation, using sensors for temperature, humidity, and concentration data to control the vaporizer injection rate.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If the injection rate of hydrogen peroxide vapor is increased to achieve higher concentration levels for shorter decontamination time, then productivity is improved, but the risk of condensation increases when actual concentration exceeds saturation concentration
Solution Approach 1:
The system continuously monitors actual hydrogen peroxide vapor concentration and compares it against the saturation concentration (dew point) calculated from temperature and humidity data. When the actual concentration approaches the saturation concentration, the feedback control system automatically adjusts the injection rate to maintain a predetermined safety margin, preventing condensation while maximizing decontamination efficiency
Solution Approach 2:
The injection rate is made dynamically adjustable based on real-time operating conditions. The system transitions from static fixed concentration operation to dynamic concentration control, where the injection rate continuously adapts to maintain optimal conditions without condensation, enabling higher average concentrations for shorter decontamination cycles
2Reliability
If the injection rate is limited by vaporizer capacity in larger enclosed areas, then condensation is avoided, but the decontamination time increases exponentially due to lower concentration
Solution Approach 1:
The feedback control system continuously monitors the actual concentration and dynamically adjusts the injection rate within the vaporizer's capacity limits. This enables operation at the maximum safe concentration level throughout the entire decontamination process, eliminating the need to operate at suboptimal lower concentrations and reducing decontamination time exponentially
Solution Approach 2:
The system changes the operating parameters by maintaining dynamic concentration control throughout the decontamination cycle rather than using fixed concentration levels. This allows the system to operate continuously at or near the maximum safe concentration, dramatically improving productivity while maintaining reliability
3Ease of operation
If fixed concentration levels are used in decontamination systems, then operation is simplified, but the system cannot adapt to varying operating conditions and cannot optimize decontamination time
Solution Approach 1:
The system performs self-adjustment by automatically monitoring operating conditions and regulating its own injection rate without external intervention. The microprocessor-controlled system autonomously optimizes the decontamination process by adjusting concentration levels in real-time, maintaining simplicity of operation while achieving optimal decontamination times
Solution Approach 2:
The system dynamically changes concentration parameters based on real-time feedback from sensors, transitioning from fixed to variable concentration operation. This automatic parameter adjustment optimizes decontamination time while maintaining ease of operation through centralized microprocessor control
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 effectively prevents hydrogen peroxide vapor condensation, allows operation at optimal concentration levels based on conditions, and reduces decontamination time by dynamically adjusting the vapor concentration within safe limits, ensuring efficient and effective decontamination.
Implementation Method 1
The vaporizer vaporizes the aqueous solution of hydrogen peroxide, thereby generating a hydrogen peroxide vapor
Implementation Method 2
condensation of the hydrogen peroxide may also inhibit the effectiveness of the hydrogen peroxide vapor
Data Source
AI summary
A decontamination system for decontaminating a region with a vaporized decontaminant, such as vaporized hydrogen peroxide. The concentration of the vaporized decontaminant within the region is modified in response to operating conditions. The decontamination system adjusts the concentration of the vaporized decontaminant in response to the monitored saturation concentration of the decontaminant, thereby preventing condensation of the vaporized decontaminant during a decontamination cycle. The decontamination system also adjusts the concentration of the vaporized decontaminant in order to minimize the time required to complete a successful decontamination operation.